BD8961NV_14 Datasheet, PDF (1/25 Pages) Rohm – Synchronous Buck Converter with Integrated FET

Datasheet
4.5V to 5.5V, 2.0A 1ch
Synchronous Buck Converter with Integrated FET
BD8961NV
General Description
The BD8961NV 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 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/Pch FET)
 Soft-Start Function
 Thermal Shutdown and UVLO Functions
 Short Circuit Protection with Time Delay Function
 Shutdown Function
Key Specification
 Input Voltage Range:
 Output Voltage:
 Output Current:
 Switching Frequency:
 Pch FET ON-Resistance:
 Nch FET ON-Resistance:
 Standby Current:
 Operating Temperature Range:
4.5V to 5.5V
3.3V(Typ)
2.0A (Max)
1.0MHz(Typ)
200mΩ(Typ)
150mΩ(Typ)
0μA (Typ)
-25°C to +105°C
Package
W(Typ) x D(Typ) x H(Max)
Applications
Power Supply for LSI including DSP, Microcomputer and
ASIC
Typical Application Circuit
SON008V5060
5.00mm x 6.00mm x 1.00mm
CIN
L
VCC
VCC,PVCC
EN
SW
VOUT
VOUT
CO
ITH
GND,PGND
RITH
CITH
VOUT
Figure 1. Typical Application Circuit
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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TSZ02201-0J3J0AJ00020-1-2
02.Oct.2014 Rev.002