ACT8810 datasheet(18/54 Pages) ACTIVE-SEMI

18 / 54 page

STEP-DOWN DC/DC CONVERTERS

ACT8810

Rev 9, 15-Nov-12

Innovative Power

- 18 -

www.active-semi.com

ActivePMU

TM and ActivePathTM are trademarks of Active-Semi.

2CTM is a trademark of NXP.

: VNOM2 refers to the nominal output voltage level for VOUT2 as defined by the Ordering Information section.

ELECTRICAL CHARACTERISTICS (REG2)

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VP2 Operating Voltage Range

2.9

5.5

VP2 UVLO Threshold

Input Voltage Rising

2.7

2.8

2.9

VP2 UVLO Hysteresis

Input Voltage Falling

Quiescent Supply Current

130

200

µA

Shutdown Supply Current

REG2 Disabled, VVP2 = 4.2V

0.1

µA

Output Voltage Regulation Accuracy

VNOM2 < 1.5V, IOUT2 = 10mA

-2.1%

VNOM2

+2.1%

VNOM2 ≥ 1.5V, IOUT2 = 10mA

-1.5%

VNOM2

+1.5%

Line Regulation

VVP2 = Max(VNOM2 + 1V, 3.2V) to 5.5V

0.15

%/V

Load Regulation

IOUT2 = 10mA to 1.0A

0.0017

%/mA

Current Limit

1.15

1.45

Oscillator Frequency

VOUT2 ≥ 20% of VNOM2

1.35

1.6

1.85

MHz

VOUT2 = 0V

540

kHz

PMOS On-Resistance

ISW2 = -100mA

0.25

0.38

Ω

NMOS On-Resistance

ISW2 = 100mA

0.17

0.26

Ω

SW2 Leakage Current

VVP2 = 5.5V, VSW2 = 5.5V or 0V

µA

Power Good Threshold

%VNOM2

Minimum On-Time

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