LOW-DROPOUT LINEAR REGULATORS

ACT8796

Rev1, 10-Oct-08

Innovative Power

TM

- 25 -

www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

ActivePMU

I

ELECTRICAL CHARACTERISTICS (REG4)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INL Operating Voltage Range

3.1

5.5

V

INL UVLO Threshold

2.9

3

3.1

V

UVLO Hysteresis

0.1

V

Output Voltage Accuracy

-2.4%

+1.8%

V

-1.2%

+1.8%

Line Regulation Error

0

mV

Load Regulation Error

-0.004

%/mA

Power Supply Rejection Ratio

60

dB

50

Supply Current per Output

Regulator Enabled

40

µA

Regulator Disabled

0

Dropout Voltage

100

200

mV

Output Current

250

mA

280

Internal Soft-Start

100

µs

Power Good Flag High Threshold

89

%

Output Noise

40

1

20

µF

Discharge Resistor in Shutdown

LDO Disabled, DIS4[ ] = [1]

650

Ω

: Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the

regulation voltage at 1V differential voltage (for 2.8V output voltage or higher)

3

: LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. Un-

der heavy overload conditions the output current limit folds back by 30% (typ)