ACT5830 datasheet(29/41 Pages) ACTIVE-SEMI

29 / 41 page

LDO5

ACT5830

Rev PrB, 05-Mar-08

Innovative Power

- 29 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

2CTM is a trademark of Philips Electronics.

ELECTRICAL CHARACTERISTICS

(VIN1 = 3.6V, COUT5 = 1µF, TA = 25°C unless otherwise specified.)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Supply Range

3.1

5.5

Input Under Voltage Lockout

VIN1 Input Rising

2.9

3.1

UVLO Hysteresis

VIN1 Input Falling

0.1

Output Voltage Accuracy

TA = 25°C

-1.2

TA = -40°C to 85°C

-2.5

Line Regulation Error

VIN5 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V

Load Regulation Error

IOUT5 = 1mA to 150mA

-0.004

%/mA

Power Supply Rejection Ratio

f = 1kHz, IOUT5 = 150mA, COUT5 = 1µF

f = 10kHz, IOUT5 = 150mA, COUT5 = 1µF

Supply Current per Output

LDO5 Enabled

µA

LDO5 Disabled

Dropout Voltage2

IOUT5 = 80mA

100

200

Output Current

150

Current Limit

VOUT5 = 95% of Regulation Voltage

165

260

Current Limit Short Circuit Foldback VOUT5 = 0V

0.45 x ILIM

Internal Soft-Start

100

µs

Power Good Flag High Threshold

VOUT5, Hysteresis = -1%

Output Noise

COUT5 = 10µF, f = 10Hz to 100kHz

µVRMS

Stable COUT5

µF

: VNOM refers to the nominal output voltage level for LDO5 as defined by the Ordering Information section.

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

lation voltage at 1V differential voltage.

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