BP5122

Data Sheet Negative DC/DC Converter (Non-isolated) BP5122 Absolute Maximum Ratings Parameter Input voltage Output Current Operating temperature range Storage temperature range Symbol Vi Io Topr Tstg Dimensions (Unit : mm) Limits 24 0.1 Unit 19.5MAX. 26.7MAX. 12.7MAX. V A °C °C Marked side 4±1.0 1 2 3 45 67 9 3.25MAX. P=2.54±0.2 0.5±0.1 1.3±0.2 2.54 8=20.32 0.25±0.05 4.45MAX. Marked side 8.25MAX. Operation Range 40 60 80 100 40 60 80 100 Electrical Characteristics (Vi=15V, lo=0.05A, SW=1, Ta=25°C unless otherwise noted) Min. Typ. Max. Unit Parameter Symbol Vi 20 V Input voltage 8 output voltage Rated output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Switching Frequency fSW Vo lo 0.01 2 5 10 60 70 250 0.1 80 80 80 V A mV mV mVpp % kHz Derating Curve Conditions Output Current Io (mA) 120 100 80 60 40 20 0 0 10 20 30 40 50 60 70 80 Ambient Temperature Ta(°C) See Derating Curve. Vi=8V to 20VDC lo=0.01A to 0.1A Conversion Efficiency (Ta=25°C,Vi=15V) 100 80 60 40 20 0 0 20 Sample Application Circuit Pin No. 1 2 3 FUSE Output Current Io(mA) Terminal name Output Terminal GND Output Voltage Vo(V) 0 Load Regulation GND GND GND GND GND Skip Input Terminal 4 5 6 Use a fuse for safety 20 7 8 9 Output Current Io(mA) Please verify operation and characteristics in the customer's circuit before actual usage. Ensure that the load current does not exceed the maximum rating. External Component Settings www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/1 2010.03 - Rev. B