BP5220A

Data Sheet Step-down DC/DC Converters(Non-isolated) BP5220A / BP5221A / BP5222A Description The BP5220A, BP5221A, BP5222A, are DC / DC converters that use a pulse width modulation (PWM) system. They contain control circuits, switching devices, rectifiers, and coils, and operate by only connecting an I / O smoothing capacitor. With a high efficiency of power conversion, the modules are available in stand-alone 9-pin SIP packages with no heat sink required. They can be applied to various purposes by fine-tuning the output voltage and switching on and off. With a wide range of input voltage, the modules are best suited for obtaining a stable local power supply from a main power supply with a large voltage variation. Applications Power supplies for copiers, personal computers, facsimiles, AV equipment, measuring instruments, vending machines, security device, registers, industrial equipment, and maintenance tools Features 1) Wide input voltage range 2) High power conversion efficiency. 3) Built-in output ON / OFF switch. 4) Adjustable output voltage ensures wide compatibility 5) Few external components required. 6) Heat sink unnecessary. 7) Compact package. BP5220A / BP5221A / BP5222A : SIP9 Dimensions (Unit : mm) 28.0 Max. 12.0 Max. Marked side Marked side 19.5 Max. Pin No. 1 2 3 4 5 6 7 2.54 2.54x 8=20.32 9 0.5 1.4 4±1 4.0 Max. 8.0 Max. Note : Dimensions without tolerance is typical. SIP9 Lineup BP5220A Input voltage Output voltage Output current Power conversion efficiency 8 to 38 5 1 85 (Vi=15V) BP5221A 8 to 38 5 0.5 84 (Vi=15V) BP5222A 15 to 38 12 0.5 90 (Vi=20V) Unit V V A % Absolute maximum ratings (Ta=25 °C) Parameter Input voltage Output current Operating temperature range Storage temperature range Symbol BP5220A Vi IO Topr Tstg 8 to 38 1 Limits BP5221A 8 to 38 0.5 BP5222A 15 to 38 0.5 V A Unit °C °C www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/7 2010.03 - Rev. B BP5220A/BP5221A/BP5222A Data Sheet Block diagram BP5220A / BP5221A / BP5222A DRIVE CIRCUIT POWER SUPPLY CIRCUIT CONTROL CIRCUIT N. C. 9 Vi 7 6 ADJ N. C. 5 N. C. 4 CTL 3 GND 2 VOUT 1 FB Electrical characteristics BP5220A (Unless otherwise noted : Vi=15V, Io=0.5A, SW=1, Ta=25˚C) Parameter Input voltage Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Switching frequency CTL pin ON resistance CTL pin OFF resistance fSW RON ROFF 200 75 Symbol Vi VO IO 27 13 22 85 190 4.7 Min. 8 4.75 5 Typ. Max. 38 5.25 1 80 80 70 Unit V V A mV mV mVPP % kHz Vo>4.75V Vo