BD9611MUV-EVK-001: 12V @ 10A, 15 ~ 36V in, Buck

Summary

Using a synchronous rectified step-down DC/DC converter IC BD9611MUV BD 9611MUV-EVK-001 evaluation board 15.0 V ~ output a 24 V input voltage 12.0 V. Provides 10.0A output current. Output current is possible with current settings by selecting high rated current FET and coil. You can adjust the loop characteristics by phase compensation components, can set the output voltage to change the IC external parts.

The BD9611MUV is a high-resistance, wide voltage input (10V to 56V), synchronous step-down switching regulator. BD9611MUV offers design flexibility through user-programmable functions such as soft-start, operating frequency, high-side current limit, and loop compensation. BD9611MUV uses voltage pulse width modulation, and drives 2 external N-channel FETs.

The Under-Voltage Locked Output (EXUVLO) protection connected to its CTL terminal has high accuracy reference voltage. Its threshold voltage can be adjusted by the resistance ratio between VCC and GND as seen by pin CTL.

BD9611MUV is safe for pre-biased outputs. It does not turn on the synchronous rectifier until the internal high-side FET has already started switching.

Specifications

Manufacturer	Rohm Semiconductor
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	BD9611MUV-EVK-001-ND
Eval Board Supplier	Rohm Semiconductor
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	12 V
Current Out	10 A
Voltage In	15 ~ 36 V
Efficiency @ Conditions	>95%, 24V in, 12V @ 1.9 ~ 10 A >94%, 30V in, 12V @ 2 ~ 10 A
Voltage Out Range	1 ~ Vin x 0.8
Features	Current Limit (Adj. or Fixed) Over Current Protection Pre-Biased Startup Shutdown, Enable, Standby Soft Start Synchronizable Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	50 ~ 500 kHz
Standby Current [Typical]	0 µA
Quiescent Current [Typical]	2 mA
Component Count + Extras	35 + 21
Internal Switch	No
Design Author	Rohm
Application / Target Market	Factory Automation Handheld games Lighting: LED Commercial Lighting Lighting: LED Home Lighting Power: Auxiliary Power Supply
Standby Current [Maximum]	5 µA
Quiescent Current [Maximum]	4 mA
Main I.C. Base Part	BD9611
Date Created By Author	2015-12
Date Added To Library	2016-04