5v/150ma output step-down dc/dc converter(non-isolated) BP5223 absolute maximum ratings input voltage operating temperature range storage temperature range maximum surface temperature maximum output current parameter symbol limits unit vi topr tstg tsmax iopeak v c c c ma unit conditions v v ma v v vpp % dc vi=14v, io=100ma vi=14v vi=8 to 18v, io=100ma vi=14v, io=0 to 100ma vi=14v, io=100ma vi=14v, io=150ma electrical characteristics input voltage range output voltage output current line regulation load regulation output ripple voltage power conversion efficiency parameter symbol typ. max. min. conversion efficiency 90 80 70 60 50 40 30 20 10 0 0 30 90 120 150 60 (ta=25 c , vi=12.0v) output current io(ma) conversion efficiency dimensions (unit : mm ) application circuit external component specifications fuse: fuse use a fast-acting fuse of 0.5a c1: input capacitor c2: output capacitor c3: noise removal capacitor pin no. 1 2 3 4 5 function input terminal vi not used gnd gnd output terminal vo please verify operation and characteristics in the customer's circuit before actual usage. ensure that the load current does not exceed the maximum rating. derating curve derating curve operation range 160 140 120 100 80 60 40 20 0 010 -30 -20 -10 20 40 30 80 70 60 50 90 ambient temperature ta( c ) output current io(ma) load regulation 0 1 2 3 4 5 6 0 50 150 200 250 100 (ta=25 c , vi=12v) output current io(ma) output voltage vo(v) load regulation BP5223 be sure to use fuse for safety. 1 345 c1 c2 io c3 vo vi l in + oscillataion frequency characteristics 200 180 160 140 120 100 80 60 20 40 0 0 30 90 120 150 60 output current io(ma) oscillation frequency (khz) oscillation frequency surface temperature increase 0 4 2 6 8 10 12 14 16 18 20 0 30 90 120 150 60 (ta=25 c , vi=12v) output current io(ma) surface temperature increase 5 4 13 16.8max. 4.01.0 2.54 x 4=10.16 p=2.540.2 1.30.2 0.50.1 3.25max. 10.4max. 5.25max. 5.15max. 0.250.05 17.0max. mark side 1/1 2010.03 - rev. b www.rohm.com ? 2010 rohm co., ltd. all rights reserved. data sheet
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