ACT5830 datasheet(13/41 Pages) ACTIVE-SEMI

13 / 41 page

STEP-DOWN DC/DC CONVERTER

ACT5830

Rev PrB, 05-Mar-08

Innovative Power

- 13 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

2CTM is a trademark of Philips Electronics.

ELECTRICAL CHARACTERISTICS

(VVP = 3.6V, TA = 25°C, unless otherwise specified.)

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VP Operating Voltage Range

3.1

5.5

VP UVLO Threshold

Input Voltage Rising

2.9

3.1

VP UVLO Hysteresis

Input Voltage Falling

Standby Supply Current

110

200

µA

Shutdown Supply Current

REG/ON[ ] = [0], VVP = 4.2V

0.1

µA

Output Voltage Regulation Accuracy

VNOM < 1.3V, IOUT = 10mA

-2.4%

VNOM

+1.8%

VNOM ≥ 1.3V, IOUT = 10mA

-1.2%

VNOM

+1.8%

Line Regulation

VVP = Max(VNOM + 1V, 3.2V) to 5.5V

0.15

%/V

Load Regulation

IOUT = 10mA to 350mA

0.0017

%/mA

Current Limit

0.45

0.6

Oscillator Frequency

VREG ≥ 20% of VNOM

1.35

1.6

1.85

MHz

VREG = 0V

530

kHz

PMOS On-Resistance

ISW = -100mA

0.45

0.75

Ω

NMOS On-Resistance

ISW = 100mA

0.3

0.5

Ω

SW Leakage Current

VVP = 5.5V, VSW = 5.5V or 0V

µA

Power Good Threshold

%VNOM

Minimum On-Time

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