Synchronous Buck Converter
Integrated FET
BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
●General Description
●Key Specifications
Input voltage range
BD9120HFN:
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.
2.7V to 4.5V
4.0V to 5.5V
4.5V to 5.5V
BD9106FVM,BD9107FVM:
BD9109FVM,BD9110NV:
Output voltage range
BD9109FVM:
3.30V ± 2%
1.0V to 1.5V
1.0V to 1.8V
1.0V to 2.5V
BD9120HFN:
BD9107FVM:
BD9106FVM,BD9110NV:
Output current
BD9106FVM, BD9109FVM,
BD9120HFN:
BD9107FVM:
BD9110NV:
Switching frequency:
FET ON resistance
●Features
Offers fast transient response with current mode
PWM control system.
0.8A(Max.)
1.2A(Max.)
2.0A(Max.)
1MHz(Typ.)
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
Pch(Typ.) / Nch(Typ.)
BD9110NV:
200mΩ
350mΩ
350mΩ
/
/
/
150mΩ
250mΩ
250mΩ
BD9106FVM,BD9107FVM:
BD9120HFN,BD9109FVM:
Standby current:
0μA(Typ.)
Operating temperature range
●Application
BD9110NV:
BD9120HFN,BD9106FVM:
BD9107FVM,BD9109FVM:
-25℃ to +105℃
-25℃ to +85℃
-25℃ to +85℃
Power supply for LSI including DSP, Micro computer
and ASIC
●Packages
HSON8
(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
MSOP8
SON008V5060
●Typical Application Circuit
Cin
L
VCC
VCC,PVCC
EN
SW
VOUT
VOUT
VOUT
ITH
ESR
RO
HSON8
GND,PGND
CO
RITH
CITH
SON008V5060
MSOP8
Fig.1 Typical Application Circuit
○Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.
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©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
TSZ02201-0J3J0AJ00090-1-2
02.MAR.2012 Rev.001
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