Data Sheet 5V/150mA Output Step-down DC/DC Converter (Non-isolated) BP5225 Absolute Maximum Ratings Unit V °C °C °C mA 17.0Max. 9.7Max. Mark Side Limits 16.8Max. Symbol Vi Topr Tstg Tsmax Iopeak 4.0±1.0 Parameter Input voltage Operating temperature range Storage temperature range Maximum surface temperature Maximum output current Dimensions (Unit : mm) 1 3 4 5 3.25Max. 0.25±0.05 0.5±0.1 1.3±0.2 P=2.54±0.2 6.05Max. 3.65Max. 2.54x 4=10.16 Electrical Characteristics Typ. Max. Unit V V mA V V Vpp % Conditions DC Vi=12V, Io=150mA Vi=12V Vi=10.0 to 26.4V, Io=150mA Vi=12V, Io=0 to 150mA Vi=12V, Io=150mA Vi=12V, Io=150mA Output Current Io(mA) Derating Curve Parameter Symbol Min. Input voltage range Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency 160 140 120 100 80 Operation Range 60 40 20 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Oscillation Frequency Application Circuit Pin No. 1 2 3 4 5 BP5225 1 3 4 5 LIN Io C2 Vo C3 Use a fuse for safety Verify proper operation under actual conditions before use. In particular, confirm that the load current does not exceed the maximum rating. 150 100 50 20 40 60 80 100 120 140 160 Output Current (mA) 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0 Vi=12V Vi=24V 20 40 60 80 100 120 140 160 Output Current (mA) Load Regulation External Component Specifications Use a fast-acting fuse from 0.5 to 1A. 6 Output Voltage (V) FUSE: FUSE 200 Conversion Efficiency + C1 Vi=12V Vi=24V 250 0 0 Efficiency (%) Vi Function Input terminal Vi Not used GND GND Output terminal Vo Frequency (kHz) 300 C1: Input Capacitor C2: Output Capacitor 5 4 3 2 1 0 0 Vi=12V Vi=24V 50 100 150 200 Output Current (mA) 250 Temperature Characteristics 5.3 Output voltage (V) C3: Noise Removal Capacitor 5.2 5.1 5 4.9 4.8 4.7 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/1 Vi=12V, Io=0mA Vi=12V, Io=150mA Vi=24V, Io=0mA Vi=24V, Io=150mA 0 10 20 30 40 50 60 70 80 Ambient temperature (°C) 2010.03 - Rev. B