BD9161FVM 반도체 회로 부품 판매점
Synchronous Buck Converter Integrated FET
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 ROHM Semiconductor |
Datasheet
2.5V to 4.5V, 0.6A 1ch
Synchronous Buck Converter Integrated FET
BD9161FVM
●General Description
ROHM’s high efficiency step-down switching regulator
BD9161FVM is a power supply designed to produce
1.2volts (low voltage) from 3.3volts power supply line.
Offers high efficiency with our original pulse skip
control technology and 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 100% Duty function.
Incorporates soft-start function.
Incorporates thermal protection and ULVO
functions.
Incorporates short-current protection circuit with
time delay function.
Incorporates shutdown function Icc=0μA (Typ.)
●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:
2.5V to 4.5V
1.0V to 3.3V
0.6A(Max.)
1MHz(Typ.)
0.35Ω(Typ.)
0.37Ω(Typ.)
0μA (Typ.)
-25℃ to +85℃
●Package
MSOP8:
2.90 mm x 4.00 mm x 0.83 mm
●Applications
Power supply for HDD, DVD and for LSI of CPU, ASIC
●Typical Application Circuit
www.DataSheet.co.kr
VCC
Cin
VOUT
RITH
CITH
VCC,PVCC
EN SW
VOUT
ITH
GND,PGND
L
ESR
CO
VOUT
RO
Fig.1 Typical application circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product is not designed protection against radioactive rays.
1/17
TSZ02201-0J3J0AJ00190-1-2
02.MAR.2012 Rev.001
Datasheet pdf - http://www.DataSheet4U.net/
BD9161FVM
●Pin Configuration
(TOP VIEW)
Datasheet
●Pin Description
Pin No.
1
2
3
4
5
6
7
8
●Block Diagram
Fig.2 Pin Configuration
Pin name
ADJ
ITH
EN
GND
PGND
SW
PVCC
VCC
PIN function
Output voltage Feedback pin (Adjustable)
GmAmp output pin/Connected phase compensation capacitor
Enable pin (Active High)
Ground
Nch FET source pin
Pch/Nch FET drain output pin
Pch FET source pin
www.DataSheet.co.kr
VCC power supply input pin
EN
3
VREF
VCC
Current
Comp.
Gm Amp.
RQ
SLOPE
VCC OSC
S
CLK
Soft
Start
UVLO
TSD
SCP
Current
Sense/
Protect
+
Driver
Logic
1
ADJ
2
ITH
VCC
8
7
PVCC
3.3V
Input
6
SW
PGND
5
4
GND
Output
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
Fig.3 Block Diagram
2/17
TSZ02201-0J3J0AJ00190-1-2
02.MAR.2012 Rev.001
Datasheet pdf - http://www.DataSheet4U.net/
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제조업체: ROHM Semiconductor
( rohm )
BD9161FVM converter
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[ BD9161FVM.PDF ]
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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