Technical Reference Note (APC08)

MODEL: APC08 SERIES

SHEET 1 OF 23

OCTOBER 4, 2004 - REVISION 03

Centauri (APC08) Non-Isolated DC/DC Power Module

The Centauri (APC08) DC-DC Power Module is a high efficiency non-isolated buck converter designed for use in a wide

variety of applications. It works from a wide input voltage range of 1.8V to 6V or 5V to 13V and offers an extensive array of

output voltages starting from 0.9V to 3.6V (up to 6V in some flavors). Through careful layout and component selection it

achieves the highest efficiency/load in the smallest footprint available in the market today. It is ideal for Point of Load

applications and provides the most flexibility for the ever-changing DSP and ASIC power requirements.

Industry Standard

0.53 X 1.3 X 0.29H SMT Package

Environmental Specifications

•

Operating temperature: -40°C to +85°C

•

Storage temperature: -40°C to +125°C

•

MTBF: >3.3 million hours

Electrical Parameters

Input

Input range

1.8-6.0VDC and 5.0-13.0VDC

Efficiency

3.3V @ 93% Typ

Control

Enable TTL compatible (Positive Logic)

Output

Regulation

(Line, Load, Temp)

<3%

Ripple and noise

75mV - (

≥2.5V Output)

50mV - (<2.5V Output)

Output voltage

adjust range

0.9V to 3.6V (J Version)

Transient Response

5% max deviation with

50% to 75% full load

500 µS (max) recovery

Special Features

•

Point of load (POL) applications

•

High efficiency, 3.3V@93% Typ

•

-40°C to +85°C Ambient Operating

Temperature

•

Open Frame SMT

•

Positive enable function

•

Low output ripple and noise

•

Regulation to zero load

•

Programmable Output from 0.9V to 3.6V

(External Trim Resistor)

•

Fixed frequency switching (400 KHz)

•

Power Good Signal (Optional)

•

Active Current share (Optional)

Safety

Designed to meet:

UL, cUL

60950 Recognized

TUV

EN60950 Licensed