LOW-DROPOUT LINEAR REGULATORS

ACT8810

Rev 4, 01-Oct-09

Active-Semi

- 31 -

www.active-semi.com

Copyright © 2009 Active-Semi, Inc.

PARAMETER

TEST CONDITIONS

MIN

TYP MAX UNIT

INL Operating Voltage Range

2.6

5.5

V

INL UVLO Threshold

2.4

2.5

2.6

V

UVLO Hysteresis

0.1

V

Output Voltage Accuracy

-2%

+2%

V

-3%

+3%

Line Regulation Error

0

%/V

Load Regulation Error

-0.006

%/mA

Power Supply Rejection Ratio

70

dB

60

Supply Current per Output

Regulator Enabled

35

µA

Regulator Disabled

0

100

200

mV

Output Current

360

mA

Current Limit

400

Internal Soft-Start

100

µs

88

%

Output Noise

40

1

20

µF

Discharge Resistor in Shutdown

LDO Disabled, DIS4[ ] = [1]

1000

Ω

3

: 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)

: 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 40% (typ)

ELECTRICAL CHARACTERISTICS (REG4)