BD8967FVM_12 Datasheet, PDF (1/20 Pages) Rohm – 4.5V to 5.5V, 0.8A 1ch Synchronous Buck Converter integrated FET

4.5V to 5.5V, 0.8A 1ch
Synchronous Buck Converter integrated FET
BD8967FVM
●General Description
ROHM’s high efficiency step-down switching regulator
BD8967FVM is a power supply designed to produce a
low voltage including 3.3V volts from 5 volts power
supply line. Offers high efficiency with synchronous
rectifier. Employs a current mode control system to
provide faster transient response to sudden change in
load.
●Features
■ Offers fast transient response with current mode
PWM control system.
■ Offers highly efficiency for all load range with
synchronous rectifier (Nch/Pch FET)
■ Incorporates soft-start function.
■ Incorporates thermal protection and ULVO
functions.
■ Incorporates short-current protection circuit with
time delay function.
■ Incorporates shutdown function
●Key Specifications
 Input voltage range:
 Output voltage range:
 Output current:
 Switching frequency:
 Pch FET ON resistance:
 Nch FET ON resistance:
 Standby current:
 Operating temperature range:
4.5V to 5.5V
3.3V±2%
0.8A (Max.)
1MHz(Typ.)
350mΩ(Typ.)
250mΩ(Typ.)
0μA (Typ.)
-25℃ to +85℃
●Package
MSOP8:
(Typ.) (Typ.) (Max.)
2.90 mm x 4.00 mm x 0.90 mm
●Application
Power supply for LSI including DSP, Micro computer and ASIC
●Typical Application Circuit
MSOP8
Fig.1 Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
TSZ02201-0J3J0AJ00070-1-2
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02.MAR.2012 Rev.001