BD9B301MUV-LB Datasheet, PDF (1/33 Pages) Rohm – Over Current Protection

Datasheet
2.7V to 5.5V Input, 3.0A Integrated MOSFET
Single Synchronous Buck DC/DC Converter
BD9B301MUV-LB
General Description
This is the product guarantees long time support in
Industrial market.
BD9B301MUV-LB is a synchronous buck switching
regulator with built-in low on-resistance power MOSFETs.
This IC, which is capable of providing current up to 3A,
features fast transient response by employing constant
on-time control system. It offers high oscillating
frequency at low inductance. With its original constant
on-time control method which operates low consumption
at light load, this product is ideal for equipment and
devices that demand minimal standby power
consumption.
Key Specifications
 Input Voltage Range:
2.7V to 5.5V
 Output Voltage Range: 0.8 V to VPVIN x 0.8 V
 Maximum Operating Current:
3A (Max)
 Switching Frequency:
2MHz/1MHz (Typ)
 High-Side MOSFET ON Resistance: 35mΩ (Typ)
 Low-Side MOSFET ON Resistance: 35mΩ (Typ)
 Standby Current:
0μA (Typ)
Package
VQFN016V3030
W (Typ) x D (Typ) x H (Max)
3.00 mm x 3.00 mm x 1.00 mm
Features
 Long Time Support Product for Industrial
Applications
 Synchronous Single DC/DC Converter
 Constant on-time control suitable to Deep-SLLM
 Over Current Protection
 Short Circuit Protection
 Thermal Shutdown Protection
 Under Voltage Lockout Protection
 Adjustable Soft Start
 Power Good Output
 VQFN016V3030 Package
(Backside Heat Dissipation)
VQFN016V3030
Applications
 Industrial Equipment
 Step-down Power Supply for DSPs, FPGAs,
Microprocessors, etc.
 Storage Devices (HDDs/SSDs)
 Printers, OA Equipment
 Distributed Power Supply, Secondary Power Supply
Typical Application Circuit
Figure 1. Application Circuit
〇Product structure : Silicon monolithic integrated circuit
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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TSZ02201-0J3J0AJ00830-1-2
2015.04.02 Rev.001