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BD91501MUV fiches techniques PDF

ROHM Semiconductor - 2.55V/0.4A 1.8V/0.3A Output 2ch Synchronous Buck Converter Integrated FET

Numéro de référence BD91501MUV
Description 2.55V/0.4A 1.8V/0.3A Output 2ch Synchronous Buck Converter Integrated FET
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD91501MUV fiche technique
Datasheet
2.55V/0.4A 1.8V/0.3A Output 2ch
Synchronous Buck Converter
Integrated FET
BD91501MUV
Description
ROHM’s buck converter BD91501MUV is a 2ch output
power supply designed to produce a low voltage
including 2.55V/0.4A and 1.8V/0.3A from 3.3V power
supply line. Offers high efficiency with our original
pulse skip control technology and synchronous rectifier.
Employs a current mode control system to provide
faster transient response to sudden change in load.
Features
Offers fast transient response with current mode
PWM control system.
Offers highly efficiency for all load range with
synchronous rectifier (Pch/Nch FET) and SLLMTM
(Simple Light Load Mode)
Incorporates soft start function
Incorporates thermal protection and UVLO function
Incorporates short-current protection with timer
latch
Incorporates shutdown function Icc=0µA (Typ.)
Full 100% Duty function
2ch output power supply (2.55V, 1.8V)
2ch output ON/OFF individual control
Employs small surface mount package:
VQFN016V3030
Usage
Power supply for LSI including DSP, DDR(RAM), Micro
computer and ASIC
Key Specifications
Input voltage range:
Output volatage:
Output voltage accuracy
Switching frequency:
Low Voltage Detection:
Maximum on duty:
Operating temperature range:
2.55V to 5.5V
1.8V,2.55V
±1.5%
1.65MHz±20%
50%(Typ.)
100%
-30to +105
Package
VQFN016V3030:
(Typ.) (Typ.) (Max.)
3.00mm × 3.00 × 1.00mm
VQFN016V3030
Typical Application Circuit
VIN
Enable1
Enable2
AVCC
PVCC1
PVCC2
BD91501MUV
EN1
EN2
SW1
FB1
SW2
FB2
L1
L2
VOUT1
VOUT2
Figure.1 Typical Application Circuit
Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays.
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
1/22
TSZ02201-0J3J0A900260-1-2
31.Aug.2012 Rev.001

PagesPages 25
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