ACT8309 查看數據表（PDF） - Active-Semi, Inc

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ACT8309

1.5A, PWM Step-Down DC/DCs in TDFN

Active-Semi, Inc 

ACT8309/8310/8311

Rev 1, 15-Nov-12

ELECTRICAL CHARACTERISTICS

(VIN = VEN = 3.6V, TA = 25˚C, unless otherwise specified.)

PARAMETER

Input Voltage Range

Under Voltage Lockout Threshold

Standby Supply Current

Shutdown Supply Current

FB Voltage

Output Voltage Accuracy

Output Voltage Line Regulation

Output Voltage Load Regulation

Current Limit

Max Output Current

Oscillator Frequency

PMOS On-Resistance

NMOS On-Resistance

EN Logic High Threshold

EN Logic Low Threshold

EN Input Bias Current

POK Threshold

POK Output Low Voltage

POK Leakage Current

SYMBOL TEST CONDITIONS

VIN

VUVLO

VFB

VIN rising, hysteresis = 80mV

VFB = 103%VFB,TYP, IOUT = 0

EN = G, VIN = 4.2V

TA = 25°C

-40°C < TA < 85°C

TA = 25°C

-40°C < TA < 85°C

fSW

RONP

RONN

VIH

VIL

IEN

VOL

IPOK

ACT8309NH

ACT8310NH

ACT8311NH

ACT8309NH

ACT8310NH

ACT8311NH

VOUT = 80% of VOUT,NOM

VFB = 0.1V

ACT8309, ISW = -100mA

ACT8310, ISW = -100mA

ACT8311, ISW = -100mA

ISW = 100mA

VIN = 2.7V to 5.0V

VIN = 2.7V to 5.0V

VIN = 5.0V, EN = G or IN

% of VOUT,NOM

IPOK = 100µA

VPOK = 5.0V

MIN

2.7

2.35

0.786

0.776

-2%

-3%

1.1

1.4

1.75

0.9

1.2

1.5

1.05

1.4

TYP

2.5

150

0.1

0.80

0.80

VNOM

VNOM

0.06

0.6

1.3

1.7

2.1

1.35

450

0.15

0.12

0.10

0.15

0.01

95

0.008

0.01

MAX

5

2.6

310

1

0.814

0.824

+2%

+3%

0.4

1.8

2.2

2.8

1.6

0.234

0.192

0.165

0.26

0.4

0.1

0.012

0.1

UNIT

V

V

µA

µA

V

V

%/V

%

A

A

MHz

kHz

Ω

Ω

V

V

µA

%

V

µA

Innovative PowerTM

-4-

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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