Datasheet
Synchronous Buck Converter with
Integrated FET
BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
General Description
Key Specifications
Input Voltage Range
BD9120HFN:
The
(BD9106FVM,
BD9107FVM,
BD9109FVM,
BD9110NV, and BD9120HFN) are ROHM’s high
efficiency step-down switching regulators designed to
produce a voltage as low as 1V from a supply voltage of
3.3V or 5.0V. It offers high efficiency by using
synchronous switches and provides fast transient
response to sudden load changes by implementing
current mode control.
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
Fast Transient Response because of Current Mode
Control System
High Efficiency for All Load Ranges because of
Synchronous Switches (Nch and Pch FET) and
SLLMTM (Simple Light Load Mode)
0.8A(Max)
1.2A(Max)
2.0A(Max)
1MHz(Typ)
Soft-Start Function
Pch(Typ)/Nch(Typ)
200mΩ / 150mΩ
350mΩ / 250mΩ
350mΩ / 250mΩ
0μA(Typ)
Thermal Shutdown and ULVO Functions
Short-Circuit Protection with Time Delay Function
Shutdown Function
BD9110NV:
BD9106FVM, BD9107FVM:
BD9120HFN, BD9109FVM:
Standby Current:
Operating Temperature Range
BD9110NV:
Application
Power Supply for LSI including DSP, Microcomputer
and ASIC
-25°C to +105°C
-25°C to +85°C
-25°C to +85°C
BD9120HFN, BD9106FVM:
BD9107FVM, BD9109FVM:
Packages
W(Typ) x D(Typ) x H(Max)
Typical Application Circuit
CIN
L
VCC
VCC,PVCC
GND,PGND
EN
SW
VOUT
VOUT
ITH
CO
R2
R1
HSON8
2.90mm x 3.00mm x 0.60mm
MSOP8
2.90mm x 4.00mm x 0.90mm
RITH
CITH
Figure 1. Typical Application Circuit
SON008V5060
5.00mm x 6.00mm x 1.00mm
○Product structure:Silicon monolithic integrated circuit ○ This product has no designed protection against radioactive rays
www.rohm.com
TSZ02201-0J3J0AJ00090-1-2
02.Oct.2014 Rev.003
© 2012 ROHM Co., Ltd. All rights reserved.
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