TC1265 800 mA Fixed-Output CMOS LDO with Shutdown Features Description * * * * * * * The TC1265 is a fixed-output, high-accuracy (typically 0.5%) CMOS low dropout regulator. Designed specifically for battery-operated systems, the TC1265's CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 80 A at full load (20 to 60 times lower than in bipolar regulators). Very Low Dropout Voltage 800 mA Output Current High Output Voltage Accuracy Standard or Custom Output Voltages Overcurrent and Overtemperature Protection SHDN Input for Active Power Management ERROR Output Can Be Used as a Low Battery Detector (SOIC only) Applications * * * * * * * Key features of the TC1265 include ultra low noise operation, very low dropout voltage (typically 450 mV at full load) and fast response to step changes in load. The TC1265 incorporates both overtemperature and overcurrent protection. The TC1265 is stable with an output capacitor of only 1 F and has a maximum output current of 800 mA. It is available in 8-Pin SOIC, 5-Pin TO-220 and 5-Pin DDPAK packages. Battery-operated Systems Portable Computers Medical Instruments Instrumentation Cellular/GSM/PHS Phones Linear Post-Regulators for SMPS Pagers Package Type 5-Pin TO-220 5-Pin DDPAK Front View VIN VOUT TC1265 SHDN TC1265 C1 1 F 1 2 3 4 5 1 2 3 4 5 SHDN BYP SHDN GND VIN VOUT GND + TC1265 VOUT BYP SHDN GND VIN VOUT VIN Tab Is GND Tab Is GND Typical Application 8-Pin SOIC VOUT 1 8 VIN GND 2 7 NC TC1265 2004 Microchip Technology Inc. NC 3 6 SHDN BYPASS 4 5 ERROR DS21376C-page 1 TC1265 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Input Voltage .........................................................6.5V Output Voltage.................. (VSS - 0.3V) to (VIN + 0.3V) Power Dissipation................Internally Limited (Note 7) Maximum Voltage on Any Pin ........VIN +0.3V to -0.3V Operating Temperature Range...... -40C < TJ < 125C Storage Temperature..........................-65C to +150C Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 A, CL = 3.3 F, SHDN > VIH, TA = +25C. Boldface type specifications apply for junction temperatures of -40C to +125C. Parameters Input Operating Voltage Maximum Output Current Output Voltage VOUT Temperature Coefficient Sym Min Typ Max Units VIN 2.7 -- 6.0 V -- -- mA IOUTMAX 800 VOUT VR - 2.5% VR 0.5% VR + 2.5% VR - 2% VR 0.5% VR + 3% -- 40 -- VOUT/T Conditions Note 2 VR 2.5V V VR = 1.8V ppm/C Note 3 Line Regulation VOUT/VIN -- 0.007 0.35 % Load Regulation (Note 4) VOUT/VOUT -0.01 0.002 +0.01 %/mA IL = 0.1 mA to IOUTMAX Dropout Voltage (Note 5) VIN-VOUT -- 20 30 mV VR 2.5V, IL = 100 A -- 50 160 IL = 100 mA -- 150 480 IL = 300 mA -- 260 800 IL = 500 mA -- 450 1300 IL = 800 mA -- 700 1000 VR = 1.8V, IL = 500 mA -- 890 1400 -- 80 130 A Supply Current IDD (VR + 1V) VIN 6V IL = 800 mA SHDN = VIH, IL = 0 Shutdown Supply Current ISHDN -- 0.05 1 A SHDN = 0V Power Supply Rejection Ratio PSRR -- 64 -- db F 1 kHz Output Short Circuit Current Thermal Regulation Output Noise IOUTSC -- 1200 1400 mA VOUT = 0V VOUT/PD -- 0.04 -- V/W Note 6 eN -- 260 -- nV/Hz IL = IOUTMAX, F = 10 kHZ Note 1: VR is the regulator output voltage setting. 2: The minimum VIN has to justify the conditions: VIN VR + VDROPOUT and VIN 2.7V for IL = 0.1 mA to IOUTMAX. 6 3: (V -V ) - 10 OUTMAX OUTMIN TCV OUT = ------------------------------------------------------------------------V OUT x T 4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 5: Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at a 1.5V differential. 6: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 ms. 7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction-to-air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation causes the device to initiate thermal shutdown. Please see Section 5.0 "Thermal Considerations" for more details. 8: Hysteresis voltage is referenced to VR. DS21376C-page 2 2004 Microchip Technology Inc. TC1265 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 A, CL = 3.3 F, SHDN > VIH, TA = +25C. Boldface type specifications apply for junction temperatures of -40C to +125C. Parameters Sym Min Typ Max Units SHDN Input High Threshold VIH 45 -- -- %VIN SHDN Input Low Threshold VIL -- -- 15 %VIN Minimum Operating Voltage VMIN 1.0 -- -- V Output Logic Low Voltage VOL -- -- 400 mV ERROR Threshold Voltage VTH -- 0.95 x VR -- V ERROR Positive Hysteresis VHYS -- 50 -- mV Conditions SHDN Input ERROR Output (SOIC Only) 1 mA Flows to ERROR Note 8 Note 1: VR is the regulator output voltage setting. 2: The minimum VIN has to justify the conditions: VIN VR + VDROPOUT and VIN 2.7V for IL = 0.1 mA to IOUTMAX. 6 3: (V -V ) - 10 OUTMAX OUTMIN TCV OUT = ------------------------------------------------------------------------V OUT x T 4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 5: Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at a 1.5V differential. 6: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 ms. 7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction-to-air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation causes the device to initiate thermal shutdown. Please see Section 5.0 "Thermal Considerations" for more details. 8: Hysteresis voltage is referenced to VR. TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, IL = 100 A, CL = 3.3 F, SHDN > VIH, TA = +25C. Parameters Sym Min Typ Max Units Specified Temperature Range TA -40 -- +125 C Operating Temperature Range TJ -40 -- +125 C Storage Temperature Range TA -65 -- +150 C Thermal Resistance, 5L-DDPAK JA -- 57 -- C/W Thermal Resistance, 5L-TO-220 JA -- 71 -- C/W Thermal Resistance, 8L-SOIC JA -- 163 -- C/W Conditions Temperature Ranges (Note 1) Thermal Package Resistances Note 1: Operation in this range must not cause TJ to exceed Maximum Junction Temperature (+125C). 2004 Microchip Technology Inc. DS21376C-page 3 TC1265 TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. LINE REGULATION (%) Note: 0.020 150 0.018 135 0.016 120 0.014 105 0.012 90 IDD (A) 2.0 0.010 0.008 60 0.006 45 0.004 30 0.002 15 0.000 -40C 0C 25C 70C 85C VOUT = 3V 75 0 -40C 125C Line Regulation vs. NOISE (V/Hz) 10.0 RLOAD = 50 COUT = 1F 1.0 0.1 FIGURE 2-4: DROPOUT VOLTAGE (V) FIGURE 2-1: Temperature. 0C 25C 70C 125C 85C TEMPERATURE (C) TEMPERATURE (C) IDD vs. Temperature. 0.600 0.550 0.500 0.450 0.400 0.350 125C 85C 70C 25C 0.300 0C 0.250 0.200 -40C 0.150 0.100 0.050 0.0 0.01 0.01 1 10 100 0.000 1000 0 100 200 300 400 500 600 700 800 ILOAD (mA) FREQUENCY (kHz) FIGURE 2-2: Output Noise vs. Frequency. FIGURE 2-5: ILOAD. 3.030 3.020 0.0090 0.0080 0.0070 0.0060 0.0050 VOUT = 3V 1 mA to 800 mA 0.0040 0.0030 2.990 2.980 2.970 2.950 2.940 0.0010 2.930 0.0100 -40C 0C 25C 70C 85C 125C 2.920 -40C DS21376C-page 4 ILOAD = 300mA ILOAD = 500mA ILOAD = 800mA 0C 25C 70C 85C 125C TEMPERATURE (C) TEMPERATURE (C) Load Regulation vs. 0.1mA 2.960 0.0020 FIGURE 2-3: Temperature. ILOAD = 3.010 3.000 VOUT (V) LOAD REGULATION (%/mA) 0.0100 3.0V Dropout Voltage vs. FIGURE 2-6: 3.0V VOUT vs.Temperature. 2004 Microchip Technology Inc. TC1265 2.0 TYPICAL PERFORMANCE CURVES (CONT) 0.090 0.080 ISHDN (A) 0.070 0.060 0.050 0.040 0.030 0.020 0.010 0.000 -40C 0C 25C 70C 85C 125C TEMPERATURE (C) FIGURE 2-1: ISHDN vs. Temperature. 2004 Microchip Technology Inc. DS21376C-page 5 TC1265 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: Pin No. (8-Pin SOIC) 3.1 PIN FUNCTION TABLE Pin No. (5-Pin DDPAK) (5-Pin TO-220) Symbol Description 1 5 VOUT Regulated voltage output 2 3 GND Ground terminal 3 -- NC 4 1 BYPASS Reference bypass input 5 -- ERROR Out-of-Regulation Flag (open drain output) 6 2 SHDN 7 -- NC No connect 8 4 VIN Unregulated supply input No connect Shutdown control input Regulated Output Voltage (VOUT) Regulated voltage output. 3.2 Ground (GND) 3.4 Out-of-Regulation Flag (ERROR) Out-of-regulation flag (open-drain output). This output goes low when VOUT is out-of-tolerance by approximately -5%. Ground terminal. 3.5 3.3 Shutdown control input. The regulator is fully enabled when a logic-high is applied to this input. The regulator enters shutdown when a logic-low is applied to this input. During shutdown, the output voltage falls to zero and the supply current is reduced to 0.05 A (typical). Reference Bypass (BYPASS) Reference bypass input. Connecting a 470 pF to this input further reduces output noise. 3.6 Shutdown Control (SHDN) Unregulated Supply (VIN) Unregulated supply input. DS21376C-page 6 2004 Microchip Technology Inc. TC1265 4.0 DETAILED DESCRIPTION 4.2 The TC1265 is a precision, fixed-output LDO. Unlike bipolar regulators, the TC1265's supply current does not increase with load current. In addition, VOUT remains stable and within regulation over the entire 0 mA to ILOADMAX load current range (an important consideration in RTC and CMOS RAM battery back-up applications). Figure 4-1 shows a typical application circuit. ERROR Output ERROR is driven low whenever VOUT falls out of regulation by more than - 5% (typ.). This condition may be caused by low input voltage, output current limiting, or thermal limiting. The ERROR threshold is 5% below rated VOUT regardless of the programmed output voltage value (e.g., ERROR = VOL at 4.75V (typ.) for a 5.0V regulator and 2.85V (typ.) for a 3.0V regulator). ERROR output operation is shown in Figure 4-2. Note that ERROR is active when VOUT is at or below VTH and inactive when VOUT is above VTH + VH. + + 1 F C1 Battery VIN VOUT TC1265 + 1 F C2 VOUT GND V+ SHDN Shutdown Control (to CMOS Logic or Tie to VIN, if unused) ERROR R1 1M C3 Required Only if ERROR is used as a Processor RESET Signal (See Text) + 0.2 F C3 BATTLOW or RESET As shown in Figure 4-1, ERROR can be used as a battery low flag or as a processor RESET signal (with the addition of timing capacitor C3). R1 x C3 should be chosen to maintain ERROR below VIH of the processor RESET input for at least 200 ms to allow time for the system to stabilize. Pull-up resistor R1 can be tied to VOUT, VIN or any other voltage less than (VIN + 0.3V). VOUT VTH FIGURE 4-1: 4.1 Typical Application Circuit. Output Capacitor A 1 F (min.) capacitor from VOUT to ground is required. The output capacitor should have an Effective Series Resistance (ESR) greater than 0.1 and less than 5. A 1 F capacitor should be connected from VIN to GND if there is more than 10 inches of wire between the regulator and the AC filter capacitor, or if a battery is used as the power source. Aluminum electrolytic or tantalum capacitor types can be used. Since many aluminum electrolytic capacitors freeze at approximately -30C, solid tantalums are recommended for applications operating below -25C. When operating from sources other than batteries, supplynoise rejection and transient response can be improved by increasing the value of the input and output capacitors, and by employing passive filtering techniques. 2004 Microchip Technology Inc. Hysteresis (VH) ERROR VIH VOL FIGURE 4-2: ERROR Output Operation. DS21376C-page 7 TC1265 5.0 THERMAL CONSIDERATIONS 5.1 Thermal Shutdown Integrated thermal protection circuitry shuts the regulator off when die temperature exceeds 160C. The regulator remains off until the die temperature drops to approximately 150C. 5.2 Power Dissipation The amount of power the regulator dissipates is primarily a function of input voltage, output voltage and output current. The following equation is used to calculate worst-case actual power dissipation: EQUATION 5-1: P D = ( V INMAX - VOUTMIN )I LOADMAX Where: Copper Area (Topside)* THERMAL RESISTANCE GUIDELINES FOR TC1265 IN 5-PIN DDPAK/TO-220 PACKAGE Copper Area (Backside) Board Area Thermal Resistance (JA) 2500 sq mm 2500 sq mm 2500 sq mm 25C/W 1000 sq mm 2500 sq mm 2500 sq mm 27C/W 125 sq mm 35C/W 2500 sq mm 2500 sq mm * Tab of device attached to top-side copper Equation 5-1 can be used in conjunction with Equation 5-2 to ensure regulator thermal operation is within limits. For example: Given: VINMAX = 3.3V 10% VOUTMIN = 2.7V 0.5% PD = Worst-case actual power dissipation VINMAX = Maximum voltage on VIN VOUTMIN = Minimum regulator output voltage ILOADMAX = Maximum output (load) current The maximum allowable power dissipation (Equation 5-2) is a function of the maximum ambient temperature (TAMAX), the maximum allowable die temperature (TJMAX) and the thermal resistance from junction-to-air (JA). PDMAX TJMAX = 125C TAMAX = 95C JA = 60C/W (SOIC) Find: 1. Actual power dissipation 2. Maximum allowable dissipation Actual power dissipation: P D = ( 3.3 x 1.1 ) - ( 2.7 x .995 ) 275 x 10 T JMAX - T AMAX = -------------------------------------- JA -3 P D = 260 mW PD = Worst-case actual power dissipation VINMAX = Maximum voltage on VIN VOUTMIN = Minimum regulator output voltage ILOADMAX = Maximum output (load) current Table 5-1 and Table 5-2 show various values of JA for the TC1265 package types. TABLE 5-1: ILOADMAX = 275 mA P D ( VINMAX - V OUTMIN )I LOADMAX EQUATION 5-2: Where: TABLE 5-2: THERMAL RESISTANCE GUIDELINES FOR TC1265 IN 8-PIN SOIC PACKAGE Copper Area (Topside)* Copper Area (Backside) Board Area Thermal Resistance (JA) 2500 sq mm 2500 sq mm 2500 sq mm 60C/W 1000 sq mm 2500 sq mm 2500 sq mm 60C/W 225 sq mm 2500 sq mm 2500 sq mm 68C/W 100 sq mm 2500 sq mm 2500 sq mm 74C/W Maximum allowable power dissipation: T JMAX - T AMAX P DMAX = -------------------------------------- JA ( 125 - 95 ) P DMAX = ------------------------60 P DMAX = 500 mW In this example, the TC1265 dissipates a maximum of 260 mW, below the allowable limit of 500 mW. In a similar manner, Equation 5-1 and Equation 5-2 can be used to calculate maximum current and/or input voltage limits. For example, the maximum allowable VIN is found by substituting the maximum allowable power dissipation of 500 mW into Equation 5-1, from which VINMAX = 4.6V. * Pin 2 is ground. Device is mounted on the top-side. DS21376C-page 8 2004 Microchip Technology Inc. TC1265 6.0 PACKAGING INFORMATION 6.1 Package Marking Information 5-Lead DDPAK Example XXXXXXXXX XXXXXXXXX YYWWNNN TC1265 3.3VET 0430256 5-Lead TO-220 XXXXXXXXX XXXXXXXXX YYWWNNN TC12653.3VATX 0430256 8-Lead SOIC (150 mil) XXXXXXXX XXXXYYWW NNN Legend: Note: * XX...X YY WW NNN Example: Example: 1265-3.3 VOA0430 256 Customer specific information* Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information. Standard OTP marking consists of Microchip part number, year code, week code, and traceability code. 2004 Microchip Technology Inc. DS21376C-page 9 TC1265 5-Lead Plastic (ET) (DDPAK) E E1 L3 D2 D D1 1 BOTTOM VIEW e b TOP VIEW 1 (5X) c2 A A1 c L Units Dimension Limits Number of Pins Pitch Overall Height Standoff Overall Width Exposed Pad Width Molded Package Length Overall Length Exposed Pad Length Lead Thickness Pad Thickness Lead Width Foot Length Pad Length Foot Angle Mold Draft Angle MIN e A A1 E E1 D D1 D2 c c2 b L L3 1 .170 .000 .385 .330 .549 .014 .045 .026 .068 .045 -3 INCHES* NOM 5 .067 BSC .177 .005 .398 .256 REF .350 .577 .303 REF .020 -.032 .089 ---- MAX .183 .010 .410 .370 .605 .026 .055 .037 .110 .067 8 7 MILLIMETERS NOM 5 1.70 BSC 4.50 4.32 0.13 0.00 10.11 9.78 6.50 REF 8.38 8.89 13.94 14.66 7.75 REF 0.36 0.51 1.14 -0.66 0.81 1.73 2.26 1.14 ---3 -- MIN MAX 4.65 0.25 10.41 9.40 15.37 0.66 1.40 0.94 2.79 1.70 8 7 *Controlling Parameter Significant Characteristic Notes: Dimensions D and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC equivalent: TO-252 Drawing No. C04-012 DS21376C-page 10 2004 Microchip Technology Inc. TC1265 5-Lead Plastic Transistor Outline (AT) (TO-220) L H1 Q b e3 e1 E e OP EJECTOR PIN a (5X) C1 A J1 F D Units Dimension Limits e Lead Pitch Overall Lead Centers Space Between Leads Overall Height Overall Width Overall Length Flag Length Flag Thickness Through Hole Center Through Hole Diameter Lead Length Base to Bottom of Lead Lead Thickness Lead Width Mold Draft Angle e1 e3 A E D H1 F Q P L J1 C1 b a INCHES* MAX MIN .060 .072 .263 .273 .030 .040 .190 .160 .385 .415 .560 .590 .234 .258 .045 .055 .103 .113 .146 .156 .560 .540 .090 .115 .022 .014 .025 .040 3 7 MILLIMETERS MIN MAX 1.52 1.83 6.68 6.93 0.76 1.02 4.06 4.83 9.78 10.54 14.22 14.99 5.94 6.55 1.14 1.40 2.62 2.87 3.71 3.96 13.72 14.22 2.29 2.92 0.36 0.56 0.64 1.02 3 7 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC equivalent: TO-220 Drawing No. C04-036 2004 Microchip Technology Inc. DS21376C-page 11 TC1265 8-Lead Plastic Small Outline (SN) - Narrow, 150 mil Body (SOIC) E E1 p D 2 B n 1 h 45 c A2 A L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D h L c B MIN .053 .052 .004 .228 .146 .189 .010 .019 0 .008 .013 0 0 A1 INCHES* NOM 8 .050 .061 .056 .007 .237 .154 .193 .015 .025 4 .009 .017 12 12 MAX .069 .061 .010 .244 .157 .197 .020 .030 8 .010 .020 15 15 MILLIMETERS NOM 8 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 6.02 3.71 3.91 4.80 4.90 0.25 0.38 0.48 0.62 0 4 0.20 0.23 0.33 0.42 0 12 0 12 MIN MAX 1.75 1.55 0.25 6.20 3.99 5.00 0.51 0.76 8 0.25 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 DS21376C-page 12 2004 Microchip Technology Inc. TC1265 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. X.XX XX XX Device Voltage Option Package Tape and Reel Device TC1265 Fixed Output CMOS LDO with Shutdown Voltage Option:* 1.8V 2.5V 3.0V 3.3V = = = = 1.8V 2.5V 3.0V 3.3V Examples: a) b) c) d) TC1265-1.8VAT TC1265-2.5VAT TC1265-3.0VAT TC1265-3.3VAT a) TC1265-1.8VETTR 1.8V LDO, DDPAK-5 pkg., Tape and Reel TC1265-2.5VETTR 2.5V LDO, DDPAK-5 pkg., Tape and Reel TC1265-3.0VETTR 3.0V LDO, DDPAK-5 pkg., Tape and Reel TC1265-3.3VETTR 3.3V LDO, DDPAK-5 pkg., Tape and Reel b) c) d) * Other output voltages are available. Please contact your local Microchip sales office for details. a) b) Package AT ET ETTR = = = OA = OATR = Plastic (TO-220), 5-Lead Plastic Transistor Outline (DDPAK), 5-Lead Plastic Transistor Outline (DDPAK), 5-Lead, Tape and Reel Plastic SOIC, (150 mil Body), 8-lead Plastic SOIC, (150 mil Body), 8-lead, Tape and Reel c) d) e) f) g) h) 1.8V LDO, TO-220-5 pkg. 2.5V LDO, TO-220-5 pkg. 3.0V LDO, TO-220-5 pkg. 3.3V LDO, TO-220-5 pkg. TC1265-1.8VOA 1.8V LDO, SOIC-8 pkg. TC1265-1.8VOATR 1.8V LDO, SOIC-8 pkg., Tape and Reel TC1265-2.5VOA 2.5V LDO, SOIC-8 pkg. TC1265-2.5VOATR 2.5V LDO, SOIC-8 pkg., Tape and Reel TC1265-3.0VOA 3.0V LDO, SOIC-8 pkg. TC1265-3.0VOATR 3.0V LDO, SOIC-8 pkg., Tape and Reel TC1265-3.3VOA 3.3V LDO, SOIC-8 pkg. TC1265-3.3VOATR 3.3V LDO, SOIC-8 pkg., Tape and Reel Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. Your local Microchip sales office The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. Customer Notification System Register on our web site (www.microchip.com) to receive the most current information on our products. 2004 Microchip Technology Inc. DS21376C-page 13 TC1265 NOTES: DS21376C-page 14 2004 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: * Microchip products meet the specification contained in their particular Microchip Data Sheet. * Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. * There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. * Microchip is willing to work with the customer who is concerned about the integrity of their code. * Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2004, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro(R) 8-bit MCUs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified. 2004 Microchip Technology Inc. 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