NCP698SQ18T1G - ON Semiconductor L.L.C.

March, 2009 − Rev. 1

1Publication Order Number:

NCP698/D

NCP698

150 mA CMOS Ultra Low Iq

and IGND LDO Regulator

with Enable

This series of fixed output low−dropout linear regulators are

designed for handheld communication equipment and portable battery

powered applications which require low quiescent and ground current.

This series features an ultra−low quiescent current of 2.5 A. Each

device contains a voltage reference unit, an error amplifier, a PMOS

power transistor, resistors for setting output voltage, current limit, and

temperature limit protection circuits. The NCP698 series provides an

enable pin for ON/OFF control.

The NCP698 has been designed to be used with low cost ceramic

capacitors and requires a minimum output capacitor of 0.1 F. The

device is housed in the micro−miniature SC82−AB surface mount

package. Standard voltage versions are 1.3, 1.5, 1.8, 2.5, 2.8, 3.0, 3.3,

3.5 and 5.0 V. Other voltages are available in 100 mV steps.

Features

•Ultra Low Quiescent Current of 2.5 A Typical

•Output Voltage Accuracy of 2.0%

•Operating Temperature Range of −40°C to 85°C

•Enable Function

•This is a Pb−Free Device

Typical Applications

•Battery Powered Instruments

•Hand−Held Instruments

•Camcorders and Cameras

Figure 1. Typical Application Diagram

This device contains 28 active transistors

Output

Input

GND Enable

Vin Vout

OFF

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

ORDERING INFORMATION

SC82−AB (SC70−4)

SQ SUFFIX

CASE 419C

PIN CONNECTIONS &

MARKING DIAGRAMS

GND

Top View)

Vin

Enable

Vout

xxxM G

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xxx = Specific Device Code

M = Month Code*

G= Pb−Free Package

(Note: Microdot may be in either location)

*Date Code orientation and/or position and

underbar may vary depending upon manu-

facturing location.

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

PIN FUNCTION DESCRIPTION

ÁÁÁÁ

Pin No.

ÁÁÁÁ

Pin Name

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Description

ÁÁÁÁ

GND

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Power supply ground.

ÁÁÁÁ

Vin

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Positive power supply input voltage.

ÁÁÁÁ

Vout

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

Regulated output voltage.

ÁÁÁÁ

Enable

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

This input is used to place the device into low−power standby. When this input is pulled low, the

device is disabled. If this function is not used, Enable should be connected to Vin.

ÁÁÁÁ

−

ÁÁÁÁ

N/C

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

No internal connection.

MAXIMUM RATINGS

Rating Symbol Value Unit

Input Voltage Vin 6.0 V

Enable Voltage Enable −0.3 to Vin +0.3 V

Output Voltage Vout −0.3 to Vin +0.3 V

Power Dissipation and Thermal Characteristics (Note 1)

Power Dissipation

Thermal Resistance, Junction−to−Ambient (1 oz copper, 1 in2 copper area)

RJA

Internally Limited

235

°C/W

Operating Junction Temperature TJ+150 °C

Operating Ambient Temperature TA−40 to +85 °C

Storage Temperature Tstg −55 to +150 °C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. Refer to Electrical Characteristics and Application Information for Safe Operating Area.

2. This device series contains ESD protection and exceeds the following tests:

Human Body Model 2000 V per MIL−STD−883, Method 3015

Machine Model Method 200 V

3. Latch up capability (85°C) "100 mA DC with trigger voltage.

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ELECTRICAL CHARACTERISTICS

(Vin = Vout(nom.) + 1.0 V, Venable = Vin, Cin = 1.0 F, Cout = 1.0 F, TA = 25°C, unless otherwise noted. Note 4)

Characteristic Symbol Min Typ Max Unit

Output Voltage (Iout = 1.0 mA)

1.3 V

1.5 V

1.8 V

2.5 V

2.8 V

3.0 V

3.3 V

3.5 V

5.0 V

Vout

1.261

1.455

1.746

2.425

2.744

2.940

3.234

3.430

4.900

1.3

1.5

1.8

2.5

2.8

3.0

3.3

3.5

5.0

1.339

1.545

1.854

2.575

2.856

3.060

3.366

3.570

5.100

Output Voltage (TA = −40 to +85°C, Iout = 1.0 mA)

1.3 V

1.5 V

1.8 V

2.5 V

2.8 V

3.0 V

3.3 V

3.5 V

5.0 V

Vout

1.261

1.455

1.746

2.425

2.716

2.910

3.201

3.430

4.900

1.3

1.5

1.8

2.5

2.8

3.0

3.3

3.5

5.0

1.339

1.545

1.854

2.575

2.884

3.090

3.399

3.570

5.100

Line Regulation

1.5 V−4.4 V (Vin = Vo(nom.) + 1.0 V to 6.0 V

4.5 V−5.0 V (Vin = 5.5 V to 6.0 V)

Regline

−

Load Regulation (Iout = 10 mA to 150 mA) Regload −20 60 mV

Output Current (Vout = (Vout at Iout = 150 mA) −3.0%)

1.3 V to 3.9 V (Vin = Vout(nom.) + 2.0 V)

4.0 V−5.0 V (Vin = 6.0 V)

Io(nom.)

150

280

−

Dropout Voltage (TA = −40°C to 85°C, Iout = 80 mA, Measured at Vout −3.0%)

1.3 V

1.5 V

1.8 V

2.5 V−2.8 V

3.0 V−3.5 V

5.0 V

Vin−Vout

−

750

550

400

250

200

140

1200

800

550

400

350

200

Dropout Voltage (TA = −40°C to 85°C, Iout = 150 mA, Measured at Vout −3.0%)

1.3 V

1.5 V

1.8 V

2.5 V−2.8 V

3.0 V−3.5 V

5.0 V

Vin−Vout

−

1050

870

700

520

370

280

1500

1070

900

700

525

400

Disable Current (Enable Input = 0 V) IDIS −0.1 1.0 A

Quiescent Current (Enable Input = Vin, Iout = 0 mA) IQ−2.5 −A

Ground Current (Enable Input = Vin, Iout = 1.0 mA to 150 mA) IGND −2.5 6.0 A

Output Short Circuit Current

1.3 V to 3.9 V (Vin = Vnom + 2.0 V)

4.0 V−5.0 V (Vin = 6.0 V)

Iout(max)

150

300

600

Output Voltage Noise (f = 100 Hz to 100 kHz, Vout = 3.0 V) Vn−100 −Vrms

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ELECTRICAL CHARACTERISTICS (continued)

(Vin = Vout(nom.) + 1.0 V, Venable = Vin, Cin = 1.0 F, Cout = 1.0 F, TA = 25°C, unless otherwise noted. Note 4)

Enable Input Threshold Voltage

(Voltage Increasing, Output Turns On, Logic High)

(Voltage Decreasing, Output Turns Off, Logic Low)

Vth(en)

1.3

−

0.3

Output Voltage Temperature Coefficient TC−"100 −ppm/°C

4. Performance guaranteed over the indicated operating temperature range by design and/or characterization, production tested at TJ = TA =

25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

5. Maximum package power dissipation limits must be observed.

PD +TJ(max) *TA

RJA

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VIN, INPUT VOLTAGE (V)

IQ, QUIESCENT CURRENT (A)

100200−20−40−60

1.7

2.9

Figure 2. Quiescent Current versus Temperature

T, TEMPERATURE (°C)

Figure 3. Quiescent Current versus Input

Voltage

Figure 4. Output Voltage versus Temperature Figure 5. Output Voltage versus Input Voltage

Figure 6. Dropout Voltage versus Temperature Figure 7. Turn−On Response

2.7

2.5

653210

0.5

VIN − VOUT

, DROPOUT VOLTAGE (mV)

12525−50

T, TEMPERATURE (°C)

300 4

VOUT

, OUTPUT

VOLTAGE (V)

400250200100500

t, TIME (s)

1.9

2.5

VOUT

, OUTPUT VOLTAGE (V)

100604020−20−40−60

T, TEMPERATURE (°C)

VOUT

, OUTPUT VOLTAGE (V)

610

3.5

VIN, INPUT VOLTAGE (V)

2.5

2.990

3.020

3.000

2.1

2.3

VIN = 4.0 V

VOUT = 3.0 V

IOUT = 0 mA

1.5

VOUT = 3.0 V

080

2.995

3.015

3.005

3.010

VIN = 6.0 V

IOUT = 30 mA

VOUT(nom) = 3.0 V

80 mA LOAD VIN = 4.0 V

CIN = 1.0 F

150

40 60 80 4

VIN = 4.0 V

VOUT(nom) = 3.0 V

IOUT = 10 mA

2345

1.5

0.5

−25 0 50 75 100

250

200

150

100

40 mA LOAD

10 mA LOAD

300 350

COUT = 0.1 F

IOUT = 10 mA

ENABLE

VOLTAGE (V)

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−400 0

Figure 8. Line Transient Response Figure 9. Load Transient Response

3.5

Vn, OUTPUT VOLTAGE NOISE (mV/√Hz)

100

10.10.01

f, FREQUENCY (kHz)

0.5

VIN = 5.0 V

VOUT = 3.0 V

IOUT = 50 mA

COUT = 0.1 F

1.5

2.5

10 100

−1

OUTPUT VOLTAGE

DEVIATION (V)

500250200100500

t, TIME (s)

−0.5

150 300 350

VOUT = 3.0 V

COUT = 0.1 F

IOUT = 10 mA

VIN, INPUT

VOLTAGE (V)

400 450

0.5

OUTPUT VOLTAGE

DEVIATION (V)

500250200100500

t, TIME (s)

−1

0.5

−0.5

−30

150 300 350

IOUT

, OUTPUT

CURRENT (mA)

400 450

IOUT = 1 mA to 30 mA

VIN = 4.0 V

VOUT = 3.0 V

COUT = 0.1 F

600200100 5000

t, TIME (s)

−30

400

300 700

400 800

−200

200

IOUT = 1 mA to 30 mA

VIN = 4.0 V

COUT = 1.0 F

VOUT = 3.0 V

OUTPUT VOLTAGE

DEVIATION (mV)

IOUT

, OUTPUT

CURRENT (mA)

900 1000

Figure 10. Load Transient Response Figure 11. Output Voltage Noise

DEFINITIONS

Load Regulation

The change in output voltage for a change in output current

at a constant temperature.

Dropout Voltage

The input/output differential at which the regulator output

no longer maintains regulation against further reductions in

input voltage. Measured when the output drops 3.0% below

its nominal. The junction temperature, load current, and

minimum input supply requirements affect the dropout level.

Maximum Power Dissipation

The maximum total dissipation for which the regulator

will operate within its specifications.

Quiescent Current

The quiescent current is the current which flows through

the ground when the LDO operates without a load on its

output: internal IC operation, bias, etc. When the LDO

becomes loaded, this term is called the Ground current. It is

actually the difference between the input current (measured

through the LDO input pin) and the output current.

Line Regulation

The change in output voltage for a change in input voltage.

The measurement is made under conditions of low dissipation

or by using pulse technique such that the average chip

temperature is not significantly affected.

Line Transient Response

Typical over and undershoot response when input voltage

is excited with a given slope.

Thermal Protection

Internal thermal shutdown circuitry is provided to protect

the integrated circuit in the event that the maximum junction

temperature is exceeded. When activated at typically 160°C,

the regulator turns off. This feature is provided to prevent

failures from accidental overheating.

Maximum Package Power Dissipation

The maximum power package dissipation is the power

dissipation level at which the junction temperature reaches its

maximum operating value, i.e. 125°C. Depending on the

ambient power dissipation and thus the maximum available

output current.

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APPLICATIONS INFORMATION

A typical application circuit for the NCP698 is shown in

Figure 1.

Input Decoupling (C1)

A 1.0 F capacitor either ceramic or tantalum is

recommended and should be connected close to the NCP698

package. Higher values and lower ESR will improve the

overall line transient response.

TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K

Output Decoupling (C2)

The NCP698 is a very stable regulator and does not

require any specific Equivalent Series Resistance (ESR) or

a minimum output current. Capacitors exhibiting ESRs

ranging from a few m up to 10  can thus safely be used.

The minimum decoupling value is 0.1 F and can be

augmented to fulfill stringent load transient requirements.

The regulator accepts ceramic chip capacitors as well as

tantalum devices. Larger values improve noise rejection and

load regulation transient response.

TDK capacitor: C2012X5R1C105K, C1608X5R1A105K,

or C3216X7R1C105K

Enable Operation

The enable pin will turn on the regulator when pulled high

and turn off the regulator when pulled low. These limits of

threshold are covered in the electrical specification section

of this data sheet. If the enable is not used, then the pin

should be connected to Vin.

Hints

Please be sure the Vin and GND lines are sufficiently

wide. When the impedance of these lines is high, there is a

chance to pick up noise or cause the regulator to

malfunction.

Place external components, especially the output

capacitor, as close as possible to the circuit, and make leads

as short as possible.

Thermal

As power across the NCP698 increases, it might become

necessary to provide some thermal relief. The maximum

power dissipation supported by the device is dependent

upon board design and layout. Mounting pad configuration

on the PCB, the board material and also the ambient

temperature effect the rate of temperature rise for the part.

This is stating that when the devices have good thermal

conductivity through the PCB, the junction temperature will

be relatively low with high power dissipation applications.

The maximum dissipation the package can handle is

given by:

PD +TJ(max) *TA

RJA

If junction temperature is not allowed above the

maximum 125°C, then the NCP698 can dissipate up to

250 mW @ 25°C.

The power dissipated by the NCP698 can be calculated

from the following equation:

Ptot +ƪVin *I

gnd (Iout)ƫ)[Vin *Vout]*I

out

VinMAX +Ptot )Vout *Iout

Ignd )Iout

If an 80 mA output current is needed then the ground

current from the data sheet is 2.5 A. For an NCP698

(3.0 V), the maximum input voltage will then be 6.0 V.

Figure 12. RqJA vs. Pad Copper Area

(1 oz Cu thickness)

JA (C/W)

700500400200100

PCB COPPER AREA (mm2)

150

350

190

0 600

170

250

210

230

No pin connected to Cu Plane

300

270

290

310

330

Pin 2 connected to Cu Plane

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ORDERING INFORMATION

Device

Nominal

Output Voltage Marking Package Shipping†

NCP698SQ13T1G 1.3 LJW

SC82−AB 3000 / Tape & Reel

NCP698SQ15T1G 1.5 LJX

NCP698SQ18T1G 1.8 LJY

NCP698SQ25T1G 2.5 LJZ

NCP698SQ28T1G 2.8 LKD

NCP698SQ30T1G 3.0 LKA

NCP698SQ33T1G 3.3 LKB

NCP698SQ35T1G 3.5 LKE

NCP698SQ50T1G 5.0 LKC

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

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PACKAGE DIMENSIONS

SC−82AB

CASE 419C−02

ISSUE E

NOTES:

1. DIMENSIONING AND TOLERANCING PER

ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. 419C−01 OBSOLETE. NEW STANDARD IS

419C−02.

4. DIMENSIONS A AND B DO NOT INCLUDE

MOLD FLASH, PROTRUSIONS, OR GATE

BURRS.

D3 PL

0.05 (0.002)

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 1.8 2.2 0.071 0.087

B 1.15 1.35 0.045 0.053

C 0.8 1.1 0.031 0.043

D 0.2 0.4 0.008 0.016

F 0.3 0.5 0.012 0.020

G 1.1 1.5 0.043 0.059

H 0.0 0.1 0.000 0.004

J 0.10 0.26 0.004 0.010

K 0.1 −−− 0.004 −−−

L 0.05 BSC 0.002 BSC

N 0.2 REF 0.008 REF

S 1.8 2.4 0.07 0.09

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

SOLDERING FOOTPRINT*

1.30

0.0512

ǒmm

inchesǓ

SCALE 10:1

0.65

0.026

1.90

0.075

0.90

0.035

0.70

0.028

0.95

0.037

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice

to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All

operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights

nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications

intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should

Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,

and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal

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PUBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5773−3850

NCP698/D

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Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada

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