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BD9134MUV fiches techniques PDF

ROHM Semiconductor - 3.0A 1ch Synchronous Buck Converter

Numéro de référence BD9134MUV
Description 3.0A 1ch Synchronous Buck Converter
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD9134MUV fiche technique
Datasheet
4.5V to 5.5V, 3.0A 1ch
Synchronous Buck Converter with
Integrated FET
BD9134MUV
General Description
BD9134MUV is ROHM’s high efficiency step-down
switching regulator designed to provide a voltage as
low as 3.3V from a supply voltage of 5V. It offers high
efficiency by using pulse skip control technology and
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 because of
Synchronous Switches (Nch/Nch FET) and SLLMTM
(Simple Light Load Mode)
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:
High side FET ON-Resistance:
Low side FET ON-Resistance:
Standby Current:
Operating Temperature Range:
4.5V to 5.5V
3.25V to 3.35V
3.0A(Max)
1MHz(Typ)
82mΩ(Typ)
70mΩ(Typ)
0μA (Typ)
-40°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
VQFN020V4040
4.00mm x 4.00mm x 1.00mm
Rf C1
VCC
CIN
EN
PVCC
VCC
VOUT
CBST
L
ITH GND, PGND SW
RITH
CO
CITH
VOUT
Figure 1. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/21
TSZ02201-0J3J0AJ00150-1-2
03.Oct.2014 Rev.002

PagesPages 25
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