ADM7151ACPZ-04-R2 datasheet(3/24 Pages) AD

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Data Sheet

ADM7151

Rev. B | Page 3 of 24

SPECIFICATIONS

VIN = 4.5 V, VOUT = 1.5 V, VREF = VREF_SENSE (unity gain), VEN = VIN, IOUT = 10 mA, CIN = COUT = CREG = 10 µF, CREF = CBYP = 1 µF. TA = 25°C

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

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT VOLTAGE RANGE

VIN

4.5

OPERATING SUPPLY CURRENT

IGND

IOUT = 0 µA

4.3

7.0

IOUT = 800 mA

8.6

SHUTDOWN CURRENT

IIN-SD

VEN = GND

0.1

µA

OUTPUT NOISE

OUTNOISE

10 Hz to 100 kHz, independent of output voltage

1.6

µV rms

100 Hz to 100 kHz, independent of output voltage

1.0

µV rms

NOISE SPECTRAL DENSITY

NSD

10 kHz to 1 MHz, independent of output voltage

1.7

nV/√Hz

POWER SUPPLY REJECTION RATIO

PSRR

ADM7151-04

1 kHz to 100 kHz, VIN = 6.2 V, VOUT = 5 V at 800 mA

1 MHz, VIN = 6.2 V, VOUT = 5 V at 800 mA

1 kHz to 100 kHz, VIN = 6.2 V, VOUT = 5 V at 400 mA

1 MHz, VIN = 6.2 V, VOUT = 5 V at 400 mA

ADM7151-02

1 kHz to 100 kHz, VIN = 5.2 V, VOUT = 4 V at 800 mA

1 MHz, VIN = 5.2 V, VOUT = 4 V at 800 mA

1 kHz to 100 kHz, VIN = 5.2 V, VOUT = 4 V at 400 mA

1 MHz, VIN = 5.2 V, VOUT = 4 V at 400 mA

VOUT VOLTAGE ACCURACY

VOUT = VREF

Voltage Accuracy

VOUT

IOUT = 10 mA

−1

1 mA < IOUT < 800 mA, over line, load and

temperature

−2

VOUT REGULATION

Line Regulation

ΔVOUT/ΔVIN

VIN = 4.5 V to 16 V

−0.01

+0.01

%/V

Load Regulation1

ΔVOUT/ΔIOUT

IOUT = 1 mA to 800 mA

0.5

1.0

%/A

CURRENT-LIMIT THRESHOLD

ILIMIT

VREF Current Limit Threshold

VOUT Current Limit Threshold2

1.0

1.3

1.6

DROPOUT VOLTAGE3

VDROPOUT

IOUT = 400 mA, VOUT = 5 V

0.30

0.60

IOUT = 800 mA, VOUT = 5 V

0.60

1.20

PULL-DOWN RESISTANCE

VOUT Pull-Down Resistance

VOUT-PULL

VEN = 0 V, VOUT = 1 V

600

VREG Pull-Down Resistance

VREG-PULL

VEN = 0 V, VREG = 1 V

kΩ

VREF Pull-Down Resistance

VREF-PULL

VEN = 0 V, VREF = 1 V

800

VBYP Pull-Down Resistance

VBYP-PULL

VEN = 0 V, VBYP = 1 V

500

START-UP TIME4

VOUT = 5 V

VOUT Start-Up Time

tSTART-UP

2.8

VREG Start-Up Time

tREG-START-UP

1.0

VREF Start-Up Time

tREF-START-UP

1.8

THERMAL SHUTDOWN

Thermal Shutdown Threshold

TSSD

TJ rising

155

°C

Thermal Shutdown Hysteresis

TSSD-HYS

°C

UNDERVOLTAGE THRESHOLDS

Input Voltage Rising

UVLORISE

TJ = −40°C to +125°C

4.49

Input Voltage Falling

UVLOFALL

TJ = −40°C to +125°C

3.85

Hysteresis

UVLOHYS

240

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