Innovative Power

TM

- 3 -

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

ACT4065A

Rev 0, 23-Apr-12

®

ABSOLUTE MAXIMUM RATINGS

: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may

affect device reliability.

PARAMETER

VALUE

UNIT

IN Supply Voltage

-0.3 to 30

V

SW Voltage

V

BS Voltage

V

EN, FB, COMP Voltage

-0.3 to 6

V

Continuous SW Current

Internally limited

A

Maximum Power Dissipation

0.76

W

Junction to Ambient Thermal Resistance (

105

°C/W

Operating Junction Temperature

-40 to 150

°C

Storage Temperature

-55 to 150

°C

Lead Temperature (Soldering, 10 sec)

300

°C

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

6

30

V

Feedback Voltage

0.792

0.808

0.824

V

High-Side Switch On Resistance

0.22

Ω

Low-Side Switch On Resistance

8

Ω

SW Leakage

1

10

µA

High-Side Switch Current Limit

Duty = 50%

3.5

A

COMP to Current Limit Transcon-

ductance

3.4

A/V

Error Amplifier Transconductance

650

µA/V

Error Amplifier DC Gain

4000

V/V

Switching Frequency

190

210

240

kHz

Short Circuit Switching Frequency

30

kHz

Maximum Duty Cycle

88

%

Minimum Duty Cycle

0

%

Enable Threshold Voltage

Hysteresis = 0.1V

0.75

0.8

0.85

V

Enable Pull-Up Current

Pin pulled up to 4.5V typically

when left unconnected

4

µA

Supply Current in Shutdown

75

100

µA

IC Supply Current in Operation

0.75

mA

Thermal Shutdown Temperature

Hysteresis = 10°C

155

°C

ELECTRICAL CHARACTERISTICS