BD8966FVM_15 Datasheet, PDF (1/25 Pages) Rohm – Synchronous Buck Converter with Integrated FET

Datasheet
4.0V to 5.5V, 0.8A 1ch
Synchronous Buck Converter with
Integrated FET
BD8966FVM
General Description
The BD8966FVM is ROHM’s high efficiency
step-down switching regulator designed to produce a
voltage as low as 1V from a supply voltage of 5V. 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
PWM Control System
 High Efficiency for All Load Ranges with
Synchronous Rectifier (Nch/Pch FET)
 Soft-Start Function
 Thermal Shutdown and UVLO Functions
 Short-Circuit Current Protection with Time Delay
Function
 Shutdown Function
Applications
Power Supply for LSI including DSP, Microcomputer
and ASIC
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:
4.0V to 5.5V
1.0V to 2.5V
0.8A (Max)
1MHz (Typ)
350mΩ (Typ)
350mΩ (Typ)
0μA (Typ)
-25°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
Typical Application Circuit
MSOP8
2.90 mm x 4.00 mm x 0.90 mm
V_CC
C_IN
L
VCC,PVCC
EN
SW
V_OUT
ADJ
ITH
GND,PGND
R_ITH
C_O
R2
R1
C_ITH
Figure 1. Typical Application Circuit
○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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TSZ02201-0J3J0AJ00060-1-2
22.Jan.2015 Rev.003