ACT81460 datasheet(13/60 Pages) ACTIVE-SEMI

13 / 60 page

ACT81460

Rev 1.0, 18-Dec-2018

Innovative PowerTM

www.active-semi.com

ActiveSwitcherTM is a trademark of Active-Semi

BUCK-BOOST ELECTRICAL CHARACTERISTICS

(VSYS = 3.6V, Fsw = 2MHz, TA = 25°C, unless otherwise specified)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VINBB, Operating Voltage Range

2.7

5.5

VBBST, Output Voltage Range

Configurable in 50mV steps

3.2

5.0

IBBST, Maximum Output Current

VBBST >= 4.2V

250

VBBST < 4.2V, (Note 1)

400

No Load Input Current

VBBST = 5V, No Load

0.9

1.2

µA

Shutdown Current

Regulator Disabled

0.1

µA

Output Voltage Accuracy

IOUT = 100mA (PWM), BB Mode

-3

VNOM

IOUT = 1mA, BB Mode

-5

VNOM

Line Regulation

VBBST = 5V, VINBB = 3.0V to 5.0V, 100mA, PWM

Regulation. (Note 2)

0.03

%/V

Load Regulation

VBBST = 5V, PWM Regulation, (Note 1)

0.4

%/A

Power Good Threshold

VBBST Rising

%VNO

Power Good Hysteresis

VBBST Falling

%VNO

Overvoltage Fault Threshold

VBBST Rising

105

110

115

%VNO

Overvoltage Fault Hysteresis

VBBST Falling

%VNO

Switching Frequency, PWM Mode

VINBB = 3.6V, VBBST = 5.0V. (Note 1,Note 3)

Freq = 00

Freq = 01

Freq = 10

Freq = 11

3.3

2.5

2.0

1.5

MHz

Soft-Start Period TSS

10% to 90% VBBST ramp time (Note 1)

800

1200

µs

Tstart, Time from EN to PG

Time from enable to PGOOD / POK.

1500

µs

Current Limit, Cycle-by-Cycle

VBBST > 4.2V

0.85

VBBST <= 4.2V, (Note 2)

1.2

Current Limit, Warning

2 consecutive switching cycles at 125% of cycle-by-

cycle current limit.

125

ACT81460 Datasheet(PDF) 13 Page - Active-Semi, Inc

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