Data Sheet

ADP7159

Rev. B | Page 3 of 23

SPECIFICATIONS

VIN = VOUT_MAX1 + 0.5 V; VEN = VIN; ILOAD = 10 mA; CIN = COUT = 10 µF; CREG = CREF = CBYP = 1 µF; TA = 25°C for typical specifications;

TA = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted.

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT VOLTAGE RANGE

VIN

2.3

5.5

V

LOAD CURRENT

ILOAD

2

A

OPERATING SUPPLY CURRENT

IGND

ILOAD = 0 µA

4.0

8.0

mA

ILOAD = 2 A

9.0

14.0

mA

SHUTDOWN CURRENT

IIN-SD

EN = ground

0.2

4

µA

NOISE2

VOUT = 1.2 V to 3.3 V

Output Noise

OUTNOISE

10 Hz to 100 kHz

1.6

µV rms

100 Hz to 100 kHz

0.9

µV rms

Noise Spectral Density

OUTNSD

10 kHz to 1 MHz

1.7

nV/√Hz

POWER SUPPLY REJECTION RATIO2

PSRR

ILOAD = 2 A

ADP7159-01

1 kHz to 100 kHz, VIN = 2.3 V, VOUT = 1.8 V

55

dB

1 MHz, VIN = 2.3 V, VOUT = 1.8 V

40

dB

ADP7159-02

1 kHz to 100 kHz, VIN = 2.8 V, VOUT = 2.3 V

61

dB

1 MHz, VIN = 2.8 V, VOUT = 2.3 V

45

dB

ADP7159-03

1 kHz to 100 kHz, VIN = 3.4 V, VOUT = 2.9 V

65

dB

1 MHz, VIN = 3.4 V, VOUT = 2.9 V

45

dB

ADP7159-04

1 kHz to 100 kHz, VIN = 3.8 V, VOUT = 3.3 V

68

dB

1 MHz, VIN = 3.8 V, VOUT = 3.3 V

45

dB

OUTPUT VOLTAGE ACCURACY

Output Voltage3

VOUT

1.2

3.3

V

Initial Accuracy

ILOAD = 10 mA, TA = 25°C

−0.6

+0.6

%

10 mA < ILOAD < 2 A, TA = 25°C

−1.0

+1.0

%

10 mA < ILOAD < 2 A, TA = −40°C to +125°C

−1.5

+1.5

%

REGULATION

Line

∆VOUT/∆VIN

VIN = VOUT_MAX + 0.5 V to 5.5 V

−0.1

+0.1

%/V

Load4

∆VOUT/∆IOUT

IOUT = 10 mA to 2 A

0.3

%/A

CURRENT-LIMIT THRESHOLD5

ILIMIT

REF

22

mA

VOUT

2.4

3

3.8

A

DROPOUT VOLTAGE6

VDROPOUT

IOUT = 1.2 A, VOUT = 3.3 V

120

170

mV

IOUT = 2 A, VOUT = 3.3 V

200

280

mV

PULL-DOWN RESISTANCE

EN = 0 V, VIN = 5.5 V

VOUT

VOUT-PULL

VOUT = 1 V

650

Ω

VREG

VREG-PULL

VREG = 1 V

31

kΩ

REF

VREF-PULL

VREF = 1 V

850

Ω

BYP

VBYP-PULL

VBYP = 1 V

650

Ω

START-UP TIME2, 7

VOUT = 3.3 V

VOUT

tSTART-UP

1.2

ms

VREG

tREG-START-UP

0.6

ms

REF

tREF-START-UP

0.5

ms

THERMAL SHUTDOWN2

Threshold

TSSD

TJ rising

150

°C

Hysteresis

TSSD-HYS

15

°C