BD8967FVM Datasheet, PDF (1/14 Pages) Rohm – Low Noise High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

Single-chip Type with Built-in FET Switching Regulator Series
Low Noise High Efficiency
Step-down Switching Regulator
with Built-in Power MOSFET
BD8967FVM
No.09027EAT25
●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
1) Offers fast transient response with current mode PWM control system.
2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Pch FET)
3) Incorporates soft-start function.
4) Incorporates thermal protection and ULVO functions.
5) Incorporates short-current protection circuit with time delay function.
6) Incorporates shutdown function
7) Employs small surface mount package : MSOP8
●Use
Power supply for LSI including DSP, Micro computer and ASIC
●Line up
Parameter
VCC Voltage
PVCC Voltage
Symbol
Limits
Unit
VCC
-0.3～+7 ^＊1
V
PVCC
-0.3～+7 ^＊1
V
EN Voltage
VEN
-0.3～+7
V
SW,ITH Voltage
VSW,VITH
-0.3～+7
V
Power Dissipation 1
Pd1
387.5^＊2
mW
Power Dissipation 2
Pd2
587.4^＊3
mW
Operating temperature range
Topr
-25～+85
℃
Storage temperature range
Tstg
-55～+150
℃
Maximum junction temperature
Tjmax
+150
℃
＊1 Pd should not be exceeded.
＊2 Derating in done 3.1mW/℃ for temperatures above Ta=25℃.
＊3 Derating in done 4.7mW/℃ for temperatures above Ta=25℃, Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB.
●Operating Conditions (Ta=25℃)
Parameter
Limits
Unit
Symbol
Min.
Typ.
Max.
VCC Voltage
PVCC Voltage
VCC ^*4
4.5
5.0
5.5
V
PVCC ^*4
4.5
5.0
5.5
V
EN Voltage
VEN
0
-
VCC
V
SW average output current
Isw ^*4
-
-
0.8
A
＊4 Pd should not be exceeded.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/13
2009.05 - Rev.A