ACT8798(2008) View Datasheet(PDF) - Active-Semi, Inc

Part Name

Description

Manufacturer

ACT8798
(Rev.:2008)

Six Channel Integrated Power Management IC for Handheld Portable Equipment

Active-Semi, Inc 

ACT8798

Rev0, 10-Oct-08

STEP-DOWN DC/DC CONVERTERS

ELECTRICAL CHARACTERISTICS (REG3)

(VVP3 = 3.6V, TA = 25°C, unless otherwise specified.)

PARAMETER

TEST CONDITIONS

VP3 Operating Voltage Range

VP3 UVLO Threshold

Input Voltage Rising

VP3 UVLO Hysteresis

Input Voltage Falling

Standby Supply Current

Shutdown Supply Current

REG3 Disabled, VVP3 = 4.2V

VNOM3 < 1.3V, IOUT3 = 10mA

Output Voltage Regulation Accuracy

VNOM3 ≥ 1.3V, IOUT3 = 10mA

Line Regulation

VVP3 = Max(VNOM3 + 1V, 3.2V) to 5.5V

Load Regulation

Current Limit

IOUT3 = 10mA to 750mA

Oscillator Frequency

PMOS On-Resistance

NMOS On-Resistance

SW3 Leakage Current

Power Good Threshold

VOUT3 ≥ 20% of VNOM3

VOUT3 = 0V

ISW3 = -100mA

ISW3 = 100mA

VVP3 = 5.5V, VSW3 = 5.5V or 0V

Minimum On-Time

MIN

3.1

2.9

-2.4%

-1.2%

0.85

1.35

TYP

3

80

130

0.1

VNOM3c

VNOM3

0.15

0.0017

1.1

1.6

530

0.28

0.20

94

70

MAX

5.5

3.1

200

1

+1.8%

+1.8%

1.85

0.50

0.35

1

UNIT

V

V

mV

µA

µA

V

%/V

%/mA

A

MHz

kHz

Ω

Ω

µA

%VNOM3

ns

c: VNOM3 refers to the nominal output voltage level for VOUT3 as defined by the Ordering Information section.

Innovative PowerTM

ActivePMUTM is a trademark of Active-Semi.

I2CTM is a trademark of Philips Electronics.

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www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

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