Data Sheet Non-Isolated Step-Down 3-Terminal DC/DC Converters BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Description The BP5275 series of DC/DC converters utilize high rated voltage. A control circuit, switching element, and coil are built in, along with input/output capacitors, resulting in stable operation with no external components required. High conversion efficiency, combined with an original heat dissipation structure, enables configuration an ultra-compact switching power supplies. 500mA output is possible with no heat sink required (800mA with heat sink). In addition, the ICs are pin-compatible with conventional TO-220 LDO regulators, making replacement easy. Low ripple voltage with high precision output ensure stable operation against the fluctuating voltages from main power supplies, making them ideal for use as local power supplies (i.e. for microcontrollers). Dimensions (Unit : mm) 2xC0.5 6.2 MAX. 2.6 16.3 MAX. 23.7 26.4 MAX. C0.5 4.0±1.0 1 2 3 0.75 1.3 2.54±0.2 2.54±0.2 0.5 (2.3) Note : Dimensions without tolerance is typical. Pin function Pin Name Pin No. Applications Power supplies for copiers, personal computers, 1 Vi facsimiles, AV equipment, measuring instruments, 2 GND vending machines, security device, registers, 3 Vo industrial equipment, and maintenance tools Features 1) High rated voltage 2) No external parts required 3) High power conversion efficiency. 4) Heat sink unnecessary. 5) Low output ripple voltage 6) High output voltage accuracy 7) Pin-compatible with conventional 3-pin LDOs 8) Compact package. BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 : SIP3 Function Input terminal GND Output termial List of the series BP5277−33 BP5277−50 BP5277−90 BP5277−12 BP5277−13 BP5277−15 Unit Input voltage 36 36 36 36 36 36 V Output voltage 3.3 5 9 12 13 15 V 500 / 800 500 / 800 500 / 800 500 / 800 500 / 800 500 / 800 mA 76 83 88 90 91 93 % Maximum output current (no heat sink / include heat sink) Power conversion efficiency (Vi=24V) Absolute maximum ratings (Ta=25°C) Parameter Input voltage Operating temperature range Symbol Limits BP5277−33 BP5277−50 BP5277−90 BP5277−12 BP5277−13 BP5277−15 Unit Vi 36 36 36 36 36 36 V Topr −30 to 85 −30 to 85 −30 to 85 −30 to 85 −30 to 85 −30 to 85 °C °C Tstg −40 to 105 −40 to 105 −40 to 105 −40 to 105 −40 to 105 −40 to 105 Allowable maximum surface temperature Tcmax 100 100 100 100 100 100 °C Maximum output current 1 IO1max 500 500 500 500 500 500 mA Maximum output current 2 (with Heat Sink) IO2max 800 800 800 800 800 800 mA Storage temperature range www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 1/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Block diagram Data Sheet Measurement circuit Vi(24V) 1 Control Circuit 3 Vo 123 Ii A Vin V Vi Io A Vout V Vo GND GND GND 2 Electrical characteristics BP5277−33 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Max. Unit Vi 8.0 24.0 32.0 V DC Output voltage VO 3.23 3.30 3.37 V IO1=0mA Output current 1 IO1 0 − 500 mA Output current 2 IO2 800 mA With heat sink Vr 0 − − Line regulation 5 50 mV Vi=8 to 32V Load regulation Vl − 5 50 mV IO=0 to 500mA Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 71 76 − % f − 900 − kHz Input voltage Operation frequency Conditions ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. BP5277−50 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Max. Unit Vi 8.0 24.0 32.0 V DC Output voltage VO 4.90 5.00 5.10 V IO1=0mA Output current 1 IO1 0 − 500 mA − 800 mA With heat sink 5 50 mV Vi=8 to 32V IO=0 to 500mA Input voltage Output current 2 IO2 Line regulation Vr 0 − Load regulation Vl − 5 50 mV Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 78 83 − % Operation frequency f − 900 − kHz Unit Conditions ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. BP5277−90 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Max. Conditions Input voltage Vi 12.0 24.0 32.0 V DC Output voltage VO 8.80 9.00 9.20 V IO1=0mA Output current 1 IO1 0 − 500 mA Output current 2 IO2 800 mA With heat sink Line regulation Vr 0 − − 5 50 mV Vi=12 to 32V Load regulation Vl − 5 50 mV IO=0 to 500mA Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 83 88 − % Operation frequency f − 900 − kHz ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet Electrical characteristics BP5277-12 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Max. Unit Vi 15.0 24.0 32.0 V DC Output voltage VO 11.75 12.00 12.25 V IO1=0mA Output current 1 IO1 0 − 500 mA − 800 mA With heat sink 5 50 mV Vi=15 to 32V IO=0 to 500mA Input voltage Output current 2 IO 2 Line regulation Vr 0 − Load regulation Vl − 5 50 mV Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 85 90 − % Operation frequency f − 900 − kHz Max. Unit Conditions ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. BP5277−13 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Conditions Input voltage Vi 16.5 24.0 32.0 V DC Output voltage VO 12.70 13.00 13.30 V IO1=0mA 500 mA Output current 1 IO1 0 − Output current 2 IO 2 − 800 mA With heat sink Line regulation Vr 0 − 5 50 mV Vi=16.5 to 32V Load regulation Vl − 5 50 mV IO=0 to 500mA Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 86 91 − % Operation frequency f − 900 − kHz ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. BP5277−15 (Unless otherwise noted, Vi=24.0V, Io1=500mA) Parameter Symbol Min. Typ. Max. Unit Vi 19.0 24.0 32.0 V DC Output voltage VO 14.70 15.00 15.30 V IO1=0mA Output current 1 IO1 0 − 500 mA − 800 mA With heat sink 5 50 mV Vi=19 to 32V IO=0 to 500mA Input voltage Output current 2 IO 2 Line regulation Vr 0 − Load regulation Vl − 5 50 mV Output ripple voltage Vp − 40 100 mVP-P Conversion efficiency η 88 93 − % Operation frequency f − 900 − kHz Conditions ∗1 ∗1 ∗1 Max output current should be reduced according to the surrounding temperature. OPERATION NOTES •There is fear of destruction of the internal circuit in case that input voltage exceeds the absolute maximum ratings (36V) by such as a surge occurred because of rapid start-up of power voltage. Be sure not to exceed absolute maximum ratings even momentarily. •This product has a protection element for safety. The protection element is fused for safety when the current which the protection element will fuse. Please evaluate sufficiently at using environment about the action when the output circuit shorts. •There are some case that the module generates heat exceeding allowable maximum surface temperature when the load current which exceeds the maximum output current is flowed. Please make design keeping enough margins not to exceed allowable maximum surface temperature at any time under any application or any test conditions. •The aluminum board at back part of the product is connected to GND. Please mind the arrangement not to contact surrounding parts. •When using the module with bent lead pin, it might be destroyed with an extreme stress for the PCB or the aluminum board. Please use the module without bending the lead pin. •The aluminum board in the back might come off when an excessive stress is put in the direction of the thickness. When fixing to the heat sink etc. to use this product, please mount to PCB after fixing to the heat sink and both the heat sink and this hold to PCB. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-33 Output Voltage vs. Temperature Fluctuation (Vi=24V) 7 6 6 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 7 5 4 3 2 5 4 3 2 Ta=85°C Ta=25°C Ta=−30°C 1 Ta=85°C Ta=25°C Ta=−30°C 1 0 0 5 10 15 20 25 30 0 35 100 Intput Voltage Vi [V] Power Conversion Efficiency Fluctuation (Ta=25°C) 300 400 500 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) 100 7 Power Conversion Efficiency η[%] 90 6 Output Voltage Vo [V] 80 70 60 50 40 30 5 4 3 2 Vi=8V Vi=8V 20 Vi=24V 10 Vi=24V 1 Vi=32V Vi=32V 0 0 0 100 200 300 400 500 0 100 Derating Curve (No heat sink) 500 Vi=24V, 32V Load Current Io2 [mA] 70°C75°C 400 OPERATION RANGE 250mA 200 100mA 100 0 -40 400 1000 600 300 300 Derating Curve (With heat sink) Vi=32V Vi=24V 500 200 Output Current Io [mA] Output Current Io [mA] Load Current Io1 [mA] 200 Output Current Io [mA] 75°C 800 600 500mA OPERATION RANGE 400 200 0 -20 0 20 40 60 80 100 -40 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 4/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-50 Output Voltage vs. Temperature Fluctuation (Vi=24V) 7 6 6 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 7 5 4 3 2 5 4 3 2 Ta=85°C Ta=25°C Ta=−30°C 1 Ta=85°C Ta=25°C Ta=−30°C 1 0 0 10 5 15 20 25 30 35 0 100 Intput Voltage Vi [V] Power Conversion Efficiency Fluctuation (Ta=25°C) 300 400 500 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) 100 7 Power Conversion Efficiency η[%] 90 6 Output Voltage Vo [V] 80 70 60 50 40 30 Vin=8V 20 5 4 3 2 Vin=24V 10 Vin=8V Vin=24V 1 Vin=32V Vin=32V 0 0 100 200 300 400 0 500 0 100 Output Current Io [mA] 400 500 Vi=24V, 32V 1000 600 Load Current Io2 [mA] 65°C 73°C 400 300 OPERATION RANGE 200 150mA 100mA 100 0 -40 300 Derating Curve (With heat sink) Vi=32V Vi=24V 500 200 Output Current Io [mA] Derating Curve (No heat sink) Load Current Io1 [mA] 200 Output Current Io [mA] 75°C 800 600 500mA OPERATION RANGE 400 200 0 -20 0 20 40 60 80 100 -40 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 5/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-90 Output Voltage vs. Temperature Fluctuation (Vi=24V) 16 14 14 12 12 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 16 10 8 6 4 10 8 6 4 Ta=85°C Ta=25°C Ta=−30°C 2 Ta=85°C Ta=25°C Ta=−30°C 2 0 0 10 15 20 25 30 35 0 100 Intput Voltage Vi [V] Power Conversion Efficiency Fluctuation (Ta=25°C) 400 500 16 90 Power Conversion Efficiency η[%] 300 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) 100 14 Output Voltage Vo [V] 80 70 60 50 40 30 Vi=12V 20 12 10 8 6 Vi=12V 4 Vi=24V 10 Vi=24V 2 Vi=32V Vi=32V 0 0 0 100 200 300 400 500 0 100 Derating Curve (No heat sink) 400 500 Vi=24V, 32V 1000 Load Current Io2 [mA] 600 65°C 70°C 400 300 OPERATION RANGE 200 150mA 100 0 -40 300 Derating Curve (With heat sink) Vi=32V Vi=24V 500 200 Output Current Io [mA] Output Current Io [mA] Load Current Io1 [mA] 200 Output Current Io [mA] 70°C 800 600 OPERATION RANGE 400 400mA 200 80mA 0 -20 0 20 40 60 80 100 -40 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 6/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-12 Output Voltage vs. Temperature Fluctuation (Vi=24V) 16 14 14 12 12 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 16 10 8 6 4 10 8 6 4 Ta=85°C Ta=25°C Ta=−30°C 2 Ta=85°C Ta=25°C Ta=−30°C 2 0 0 10 15 20 25 30 100 0 35 Power Conversion Efficiency Fluctuation (Ta=25°C) 400 500 16 90 14 80 Output Voltage Vo [V] Power Conversion Efficiency η[%] 300 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) 100 70 60 50 40 30 12 10 8 6 Vi=15V Vi=24V Vi=32V 20 10 Vi=15V Vi=24V Vi=32V 4 2 0 0 0 100 200 300 400 500 0 100 Output Current Io [mA] Load Current Io [mA] 400 300 OPERATION RANGE 200 150mA 100 80mA 0 20 40 60 80 70°C 800 600 OPERATION RANGE 400 400mA 200 0 -40 100 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 500 Vi=24V, 32V 63°C 70°C -20 400 1000 600 0 -40 300 Derating Curve (With heat sink) Vi=32V Vi=24V 500 200 Output Current Io [mA] Derating Curve (No heat sink) Load Current Io [mA] 200 Output Current Io [mA] Intput Voltage Vi [V] -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 7/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-13 Output Voltage vs. Temperature Fluctuation (Vi=24V) 18 16 16 14 14 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 18 12 10 8 6 12 10 8 6 Ta=85°C Ta=25°C Ta=−30°C 4 2 Ta=85°C Ta=25°C Ta=−30°C 4 2 0 0 15 20 25 30 0 35 100 Power Conversion Efficiency Fluctuation (Ta=25°C) 90 16 Power Conversion Efficiency η[%] 18 80 400 500 14 Output Voltage Vo [V] 70 60 50 40 30 12 10 8 6 Vi=16.5V Vi=24V Vi=32V 10 300 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) 100 20 200 Output Current Io [mA] Intput Voltage Vi [V] Vi=16.5V Vi=24V Vi=32V 4 2 0 0 100 200 300 400 500 0 100 200 300 400 500 Output Current Io [mA] Output Current Io [mA] Derating Curve (No heat sink) Derating Curve (With heat sink) Vi=24V, 32V Vi=32V Vi=24V 1000 Load Current Io2 [mA] Load Current Io1 [mA] 600 60°C 67°C 500 400 300 OPERATION RANGE 200 160mA 100 0 -40 80mA -20 0 20 40 60 80 600 OPERATION RANGE 400 300mA 200 0 -40 100 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 65°C 800 -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 8/9 2011.12 - Rev. A BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 Data Sheet BP5277-15 Output Voltage vs. Temperature Fluctuation (Vi=24V) 18 16 16 14 14 Output Voltage Vo [V] Output Voltage Vo [V] Line Regulation (Io=500mA) 18 12 10 8 6 4 12 10 8 6 4 Ta=85°C Ta=25°C Ta=−30°C 2 Ta=85°C Ta=25°C Ta=−30°C 2 0 0 15 20 25 30 0 35 100 18 90 16 80 70 60 50 40 30 400 12 10 8 6 Vi=19V Vi=24V Vi=32V 4 2 0 0 0 100 200 300 400 500 0 100 Output Current Io [mA] 200 300 400 Derating Curve (With heat sink) Vi=32V Vi=24V Vi=24V, 32V 1000 600 Load Current Io2 [mA] 60°C 67°C 500 400 300 OPERATION RANGE 200 160mA 85mA 100 0 -40 500 Output Current Io [mA] Derating Curve (No heat sink) Load Current Io1 [mA] 500 14 Vi=19V Vi=24V Vi=32V 10 300 Output Voltage vs. Input Voltage Fluctuation (Ta=25°C) Output Voltage Vo [V] Power Conversion Efficiency η[%] Power Conversion Efficiency Fluctuation (Ta=25°C) 100 20 200 Output Current Io [mA] Intput Voltage Vi [V] 65°C 800 600 OPERATION RANGE 400 300mA 200 0 -20 0 20 40 60 80 100 -40 Ambient Temperature Ta [°C] www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -20 0 20 40 60 80 100 Ambient Temperature Ta [°C] 9/9 2011.12 - Rev. A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. 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