ACT8810 datasheet(19/54 Pages) ACTIVE-SEMI

19 / 54 page

STEP-DOWN DC/DC CONVERTERS

ACT8810

Rev 9, 15-Nov-12

Innovative Power

- 19 -

www.active-semi.com

ActivePMU

TM and ActivePathTM are trademarks of Active-Semi.

2CTM is a trademark of NXP.

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

ELECTRICAL CHARACTERISTICS (REG3)

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VP3 Operating Voltage Range

2.9

5.5

VP3 UVLO Threshold

Input Voltage Rising

2.7

2.8

2.9

VP3 UVLO Hysteresis

Input Voltage Falling

Quiescent Supply Current

130

200

µA

Shutdown Supply Current

REG3 Disabled, VVP3 = 4.2V

0.1

µA

Output Voltage Regulation Accuracy

VNOM3 < 1.5V, IOUT3 = 10mA

-2.1%

VNOM3

+2.1%

VNOM3 ≥ 1.5V, IOUT3 = 10mA

-1.5%

VNOM3

+1.5%

Line Regulation

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

0.15

%/V

Load Regulation

IOUT3 = 10mA to 550mA

0.0017

%/mA

Current Limit

0.55

0.7

Oscillator Frequency

VOUT3 ≥ 20% of VNOM3

1.35

1.6

1.85

MHz

VOUT3 = 0V

540

kHz

PMOS On-Resistance

ISW3 = -100mA

0.46

0.69

Ω

NMOS On-Resistance

ISW3 = 100mA

0.3

0.55

Ω

SW3 Leakage Current

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

µA

Power Good Threshold

%VNOM3

Minimum On-Time

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