BD9106FVM_14 Datasheet, PDF (1/50 Pages) Rohm – Synchronous Buck Converter with Integrated FET

Datasheet
Synchronous Buck Converter with
Integrated FET
BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
General Description
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.
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
SLLM^TM (Simple Light Load Mode)
 Soft-Start Function
 Thermal Shutdown and ULVO Functions
 Short-Circuit Protection with Time Delay Function
 Shutdown Function
Application
Power Supply for LSI including DSP, Microcomputer
and ASIC
Typical Application Circuit
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
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°C to +105°C
-25°C to +85°C
-25°C to +85°C
Packages
W(Typ) x D(Typ) x H(Max)
VCC
CIN
L
EN ^VCC,PVCC SW
VOUT
VOUT
CO
R2
ITH
GND,PGND
RITH
R1
HSON8
MSOP8
2.90mm x 3.00mm x 0.60mm 2.90mm x 4.00mm x 0.90mm
CITH
Figure 1. Typical Application Circuit
SON008V5060
5.00mm x 6.00mm x 1.00mm
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○ This product has no designed protection against radioactive rays
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TSZ02201-0J3J0AJ00090-1-2
02.Oct.2014 Rev.003