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BA3257HFP 데이터시트(PDF) 1 Page - Rohm |
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1 / 2 page Description Features Applications HDD/DVD Dimension (Unit : mm) BA3257FP BA3257HFP TO252-5 HRP-5 6.5±0.2 1 2 3 5 4 0.5 1.27 0.5±0.1 2.3±0.2 0.5±0.1 5.1 + 0.2 − 0.1 2-C0.5 1.0±0.2 9.39±0.125 0.73±0.1 0.27 1.905±0.1 1.2575 1 2 3 4 5 (5.59) 8.82±0.1 S S D 0.08 1.72 + 0.1 − 0.05 4.5°+5.5° − 4.5° BA3257FP/HFP Dual Low Drop Out Regulator Absolute Maximum Ratings (Ta=25˚C) Power supply voltage VCC - 4.75 14.0 V Recommended Operating Conditions (Ta=25˚C) Parameter Min. Max. Unit Typ. Symbol BA3257FP/HFP is a power supply IC in which 2-output series regulators are incorporated into a power package (TO252-5/HRP-5). 2-outputs are 3.3V and a variable output.(Above 1.5V can be set.) Each current is 1A. Ceramic capacitor is available for output. 1) 3.3V/1A and Variable(1.25V standard)/1A 2) Output ceramic capacitor available 3) Output voltage accuracy :+/-2% 4) Built-in over-current and thermal protection circuit 5) TO252-5 package and HRP-5 package ∗1 Derating : 18.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting. ∗2 Derating : 10.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting. Power supply voltage Power dissipation Operating temperature range Storage temperature range Parameter Symbol Limits Unit VCC Pd HRP-5 TO252-5 Topr Tstg +85 +150 0 -55 ~ ~ mW ˚C ˚C 15 2300 V ∗ 1 1300 ∗ 2 Ceramic Capacitor Available |
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