Technical Reference Notes

ALO25F24

(Single Output 8

MODEL: ALO25F24

SHEET 1 OF 13

AUGUST 23, 2005 - REVISION H

ALO25F24 Single Output 8

The ALO25F24 is Astec’s 8

delivers up to 25A max current at 3.3V output voltage. It provides tight regulation and exhibits clean and monotonic output

start up characteristics. This model comes with industry standard features such as Input UVLO; Enable On/Off, OCP, OVP and

OTP; Output Trim; Differential Remote Sense pins. Open frame construction is available with TH and SMT termination. With

its wide operating temperature range of -40°C to 85°C ambient, the converter is deployable into almost any environment.

Special Features

•

Industry Standard 8

•

Open frame construction

•

Low Ripple and Noise

•

Regulation to zero load

•

High Capacitive Load Start-up

•

Fixed Switching Frequency

•

Industry standard features: Input UVLO;

Enable; OVP, OCP and OTP; Output Trim,

Remote Sense

•

Meets Basic Insulation

Environmental Specifications

•

-40ºC to 85ºC Operating Temperature

•

-40ºC to 125ºC Storage Temperature

•

MTBF > 1 million hours

Electrical Parameters

Input

Input Range

18-36 VDC

Input Surge

50V / 100ms

Control

Enable

TTL compatible

(Positive or Negative Logic Enable Options)

Output

Load Current

Ripple and Noise

Output Voltage

Adjust Range

Transient Response

5% Typical deviation

50% to 75% Load Change

100

µµµµs settling time (Typ)

Remote Sense

Over Current

120% (Typ)

Protection

Over Voltage

130% (Typ)

Protection

Over Temperature

103

°°°°C

Protection

Safety

UL + cUL 60950, Recognized

EN60950 through TUV-PS