ACE150X

150KHz,2A, PWM Step-Down DC/DC Converter

VER 1.2

1 

Description

The ACE150x series are monolithic IC designed for a step-down DC/DC converter, and own the ability of

driving 2A load without additional transistor. It saves board space.

The Internal compensation makes feedback control having good line and load regulation without

external design. Regarding protected function, thermal shutdown is to prevent over temperature operating

from damage, and current limit is against over current operating of the output switch. If current limit

The ACE150x series operate at a switching frequency of 150KHz. Other features include a guaranteed

+4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on

the oscillator frequency. The output version included fixed 3.3V, 5V, 12V, and an adjustable type. The

chips are available in a standard 8-lead SOP-8 package..

Features

Application

Absolute Maximum Ratings

Parameter

Symbol

Max

Unit

Input supply voltage

24

V

ON/OFF Pin Input Voltage

-0.3 to +18

V

Feedback Pin Voltage

-0.3 to +18

V

Output Voltage to Ground

-1

V

Power Dissipation

Internally Limited W

Thermal resistance junction to ambient

SOP-8

70

Operating junction temperature

150

Storage temperature range

- 60 to 150

Operating temperature

-40 to +125

Note : Exceeding these rating could cause damage to the device. All voltages are with respect to Ground. Currents are positive

into, negative out of the specified terminal.