APC18T04 Datasheet, PDF (1/13 Pages) Astec America, Inc – 3.0-5.5Vin / 18A Non-Isolated Point-of-Load

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% V_O
Ripple and Noise
50mV_P-P max
Output Voltage
Adjust Range
0.75 –3.3V_O
Transient Response 300mV deviation (typical)
50% load change
25µs settling time (typical)
Remote Sense
Over Current
Protection
+10%V_O
150% I_O
Over Temperature 120 °C max
Protection
Safety
UL + cUL 60950, Recognized
EN60950 through TUV-PS
MODEL: APC18T04 SERIES
JULY 27, 2005 - REVISION A
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