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ROHM Semiconductor |
Synchronous Buck Converter
Integrated FET
BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
●General Description
ROHM’s high efficiency step-down switching regulators
(BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,B
D9120HFN) are the power supply designed to produce
a low voltage including 1 volts from 5/3.3 volts 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)
and SLLMTM (Simple Light Load Mode)
Incorporates soft-start function.
Incorporates thermal protection and ULVO
functions.
Incorporates short-current protection circuit with
time delay function.
Incorporates shutdown function
●Application
Power supply for LSI including DSP, Micro computer
and ASIC
●Key Specifications
Input voltage range
BD9120HFN:
BD9106FVM,BD9107FVM:
BD9109FVM,BD9110NV:
Output voltage range
BD9109FVM:
BD9120HFN:
BD9107FVM:
BD9106FVM,BD9110NV:
Output current
BD9106FVM, BD9109FVM,
BD9120HFN:
BD9107FVM:
BD9110NV:
Switching frequency:
FET ON resistance
BD9110NV:
BD9106FVM,BD9107FVM:
BD9120HFN,BD9109FVM:
Standby current:
Operating temperature range
www.DataSheet.co.kr
BD9110NV:
BD9120HFN,BD9106FVM:
BD9107FVM,BD9109FVM:
2.7V to 4.5V
4.0V to 5.5V
4.5V to 5.5V
3.30V ± 2%
1.0V to 1.5V
1.0V to 1.8V
1.0V to 2.5V
0.8A(Max.)
1.2A(Max.)
2.0A(Max.)
1MHz(Typ.)
Pch(Typ.) / Nch(Typ.)
200mΩ / 150mΩ
350mΩ / 250mΩ
350mΩ / 250mΩ
0μA(Typ.)
-25℃ to +105℃
-25℃ to +85℃
-25℃ to +85℃
●Typical Application Circuit
●Packages
HSON8
MSOP8
SON008V5060
(Typ.) (Typ.) (Max.)
2.90mm x 3.00mm x 0.60mm
2.90mm x 4.00mm x 0.90mm
5.00mm x 6.00mm x 1.00mm
VCC Cin
L
EN VCC,PVCC SW
VOUT
VOUT
VOUT
ESR
RO
RITH
ITH GND,PGND
CO
CITH
Fig.1 Typical Application Circuit
HSON8
MSOP8
SON008V5060
○Product structure:Silicon monolithic integrated circuit
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
1/40
TSZ02201-0J3J0AJ00090-1-2
02.MAR.2012 Rev.001
Datasheet pdf - http://www.DataSheet4U.net/
BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
●Pin Configurations
(Top View)
1 ADJ
VCC 8
2 ITH
PVCC 7
3 EN
SW 6
1 VOUT
(Top View)
VCC 8
2 ITH
PVCC 7
3 EN
SW 6
4 GND
PGND 5
4 GND
PGND 5
Datasheet
Fig.2 BD9106FVM, BD9107FVM
ADJ 1
(Top View)
8 EN
VCC 2
ITH 3
7 PVCC
6 SW
GND 4
5 PGND
Fig.3 BD9109FVM
(Top View)
1 ADJ
VCC 8
2 ITH
3 EN
PVCC 7
SW 6
4 GND
PGND 5
Fig.5 BD9120HFN
Fig.4 BD9110NV
●Pin Descriptions
【BD9106FVM, BD9107FVM, BD9109FVM】
Pin No.
Pin name
1 ADJ/VOUT
2 ITH
3 EN
4 GND
5 PGND
6 SW
7 PVCC
8 VCC
【BD9110NV】
Pin No.
Pin name
1 ADJ
2 VCC
3 ITH
4 GND
5 PGND
6 SW
7 PVCC
8 EN
【BD9120HFN】
Pin No.
Pin name
1 ADJ
2 ITH
3 EN
4 GND
5 PGND
6 SW
7 PVCC
8 VCC
www.DataSheet.co.kr
PIN function
Output voltage detect pin/ ADJ for BD9106・07FVM
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
VCC power supply input pin
PIN function
Output voltage adjust pin
VCC power supply input pin
GmAmp output pin/Connected phase compensation capacitor
Ground
Nch FET source pin
Pch/Nch FET drain output pin
Pch FET source pin
Enable pin(Active High)
PIN function
Output voltage adjust pin
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
VCC power supply input pin
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/40
TSZ02201-0J3J0AJ00090-1-2
02.MAR.2012 Rev.001
Datasheet pdf - http://www.DataSheet4U.net/
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