BD8963EFJ_14 Datasheet, PDF (1/28 Pages) Rohm – Synchronous Buck Converter with Integrated FET

Datasheet
2.7V to 5.5V, 3A 1ch
Synchronous Buck Converter with
Integrated FET
BD8963EFJ
General Description
The BD8963EFJ is ROHM's high efficiency step-down
switching regulator designed to produce a voltage as
low as 1.0V from a supply voltage of 5.5V/3.3V. 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
 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:
 Average Output Current:
 Switching Frequency:
 Pch FET ON-Resistance:
 Nch FET ON-Resistance:
 Standby Current:
 Operating Temperature Range:
2.7V to 5.5V
1.0V to 2.5V
3.0A (Max)
1MHz (Typ)
145mΩ(Typ)
80mΩ(Typ)
5.0μA (Typ)
-25°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
HTSOP-J8
4.90mm x 6.00mm x 1.00mm
Typical Application Circuit
VCC
CIN
L
VCC
EN
SW
ADJ
CO
RCOMP
COMP
GND
CCOMP
VOUT
R2
R1
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
©2012 2012ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○ This product has no designed protection against radioactive rays
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TSZ02201-0J3J0AJ00040-1-2
02.Oct.2014 Rev.003