EVL250W-ATX80PL: 250W, 12V, 5V, 3.3V, 5V(SB)

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This application note describes the characteristics and performance of a 250 W wide range input and power factor corrected power supply designed to be used in an ATX application.

Good electrical performance allows the meeting of the 80 PLUS® Silver efficiency targets.

Manufacturer STMicroelectronics
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Multi Output
Eval Board Part Number 497-10596-ND
Eval Board Supplier STMicroelectronics
Eval Board
Normally In Stock
AC Voltage
115 V
230 V
Outputs and Type
4 Isolated
Voltage Out: Highest Current First
12 V, 5 V, 3.3 V, 5 V(SB)
Current Out
13.5 A, 12 A, 8 A, 2 A
Output Power
250 W
Efficiency @ Conditions
>87%, 115V in, 25% ~ 100%
>87%, 230V in, 25% ~ 100%
No-load Input Power @ Voltage
161 mW @ 230 V
70 mW @ 115 V
Over Current Protection
Over Voltage Protection
Short Circuit Protection
Under Voltage Protection, Brown-Out
Switching Frequency
80 kHz
Internal Switch
Component Count + Extras
261 + 2
Application / Target Market
Voltage In
88 ~ 264 VAC
Design Author
Main I.C.