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APC18T04

3.0-5.5Vin / 18A Non-Isolated Point-of-Load

Astec Semiconductor => Silicon Link 

Technical Reference Notes

APC18T04 Series

APC18T04 Series: 3.0-5.5Vin / 18A Non-Isolated Point-of-Load

The APC18 DC-DC Power Module is a high efficiency non-isolated buck converter designed for use in a wide variety of

applications. Packaged in an industry standard recognized SMT footprint: 1.3” x 0.53”, it works from a wide input voltage

range of 3V to 5.5V and offers a wide adjustable output range of 0.75V to 3.3V through external resistor programming.

Special Features

• Industry Standard SMT Footprint

• High Efficiency up to 95% at 3.3V output

• Adjustable output through external resistor

programming

• Low output ripple and noise

• Input UVLO

• Fixed Switching Frequency

• Positive Enable

• Remote Sense pin

Environmental Specifications

• -40ºC to 85ºC Operating Temperature

• -40ºC to 125ºC Storage Temperature

• MTBF > 1 million hours

Electrical Parameters

Input

Input Range

Input Surge

3V to 5.5VDC

6V / 100ms

Control

Enable

TTL compatible

(Positive or Negative Logic Enable Options)

Output

Load Current

Up to 18A max (Po ≤ 60W)

Line/Load Regulation < 0.5% VO

Ripple and Noise

50mVP-P max

Output Voltage

Adjust Range

0.75 –3.3VO

Transient Response 300mV deviation (typical)

50% load change

25µs settling time (typical)

Remote Sense

Over Current

Protection

+10%VO

150% IO

Over Temperature 120 °C max

Protection

Safety

UL + cUL 60950, Recognized

EN60950 through TUV-PS

MODEL: APC18T04 SERIES

JULY 27, 2005 - REVISION A

SHEET 1 OF 13

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