BD8967FVM_15 Datasheet, PDF (1/25 Pages) Rohm – Synchronous Buck Converter with Integrated FET

Datasheet
4.5V to 5.5V, 0.8A 1ch
Synchronous Buck Converter with
Integrated FET
BD8967FVM
General Description
BD8967FVM is ROHM’s high efficiency step-down
switching regulator designed to produce a voltage as
low as 3.3V from a supply voltage of 5V. It offers high
efficiency with 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 Protection with Time Delay Function.
■ Shutdown Function
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:
4.5V to 5.5V
3.3V±2%
0.8A (Max)
1MHz (Typ)
350mΩ (Typ)
250mΩ (Typ)
0μA (Typ)
-25°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
Application
Power Supply for LSI including DSP, Microcomputer and ASIC
Typical Application Circuit
V_CC
C_IN
V_OUT
R_ITH
C_ITH
MSOP8
2.90 mm x 4.00 mm x 0.90 mm
VCC,PVCC
EN
SW
VOUT
ITH
GND,PGND
L
C_O
V_OUT
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○ This product has no designed protection against radioactive rays
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TSZ02201-0J3J0AJ00070-1-2
22.Jan.2015 Rev.003