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www.rohm.com
2009.04- Rev.B
© 2009 ROHM Co., Ltd. All rights reserved.
Single-chip Type with Built-in FET Switching Regulator Series
Simple Step-down
Switching Regulators
with Built-in Power MOSFET
BD9701FP/CP-V5/T/T-V5, BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
●Description
The BD9701/BD9703/BD9 70 2 are single-channel step-down switching regulator capable of PWM operation.
The Pch MOS FET is built in for high efficien cy in small load area.Lower electricity consumption of op erating current 4mA
(Typ) and stand-by current 0uA(Typ) is realiz ed by adopting Bi-CMOS process.
●Features
1) Maximum switching current: 1.5A(BD9701/BD9703), 3A(BD9702)
2) Built-in Pch FET ensures high efficiency
3) Output voltage adjustable via external resistors
4) High switching frequency: 100kHz (BD9701), 300kHz(B D9703), 110kHz(BD9702)
5) Overcurrent and thermal shutdown protection circuits built in
6) ON/OFF control via STBY pin
7) Small surface mount TO252-5 package (only BD9701FP, BD9703FP)
●Applications
TVs, printers, DVD players, projectors, gaming devices, PCs, car audio/navigation systems, ETCs, communication equipment,
AV products, office equipment, industrial dev ices, and more.
●Line Up
BD9701FP/CP-V5/T/T-V5 BD9703FP/CP-V5/T/T-V5 BD9702CP-V5/T/T-V5
Output Current 1.5A 3.0A
Input Voltage 8 or Vo+3 ～ 36V
Switching Frequency 100kHz (fixed) 300kHz (fixed) 110kHz (fixed)
External Synchr onization ×
Stand-by Function ○
Operating Temperature -40 ～ +85℃
Package TO252-5/TO220CP-V5/TO220FP-5/TO220FP-5 (V5) TO220CP-V5/TO220FP-5/TO220FP-5 (V5)
No.09027EBT01
