ROHM Semiconductor BD9F500QUZ Nano Pulse Control™ DC-DC Converter

ROHM Semiconductor BD9F500QUZ Nano Pulse Control™ Synchronous Buck DC-DC Converter features built-in low on-resistance power MOSFETs. The BD9F500QUZ DC-DC Converter offers a current of up to 5A and a fast transient response due to the Constant On-Time control system. Additionally, the Light Load Mode control improves efficiency in light-load conditions.

The ROHM BD9F500QUZ Synchronous Buck DC-DC Converter is ideal for reducing the standby power consumption of equipment. The system can control sequence via the Power Good function. The BD9F500QUZ achieves high power density and provides a small footprint on the PCB, all in a small package.

Features

Single synchronous buck DC-DC converter
Constant on-time control
Light load mode control
Adjustable soft start
Power good output
Nano Pulse Control
Output capacitor-discharge function
Overvoltage protection (OVP)

Over-current protection (OCP)
Short circuit protection (SCP)
Thermal shutdown protection (TSD)
Under-voltage lockout protection (UVLO)
Backside heat dissipation, 0.5mm pitch
3.0mm x 3.0mm x 0.40mm VMMP16LZ3030 Package

Applications

Step-down power supply for SoC, FPGA, Microprocessor
Printer (MFP / LBP / IJP / POS)
OA Equipment

Laptop PC
USB Type-C applications

Specifications

4.5V to 36V Input voltage range
0.6V to 14V Output voltage range
5A (Max) Output current
600kHz, 1MHz, 2.2MHz (Typ) Switching frequency

40mΩ (Typ) High-side FET ON resistance
22mΩ (Typ) Low-side FET ON resistance
2μA (Typ) Shutdown current
20μA (Typ) Operating quiescent current

Resources

Datasheet
ROHM’s 80V Withstand 5A Output Power Supply ICs

ROHM Semiconductor BD9F500QUZ Nano Pulse Control™ DC-DC Converter

Features

Applications

Specifications

Resources

OVERVIEW

DC LINEUP & APPLICATIONS

Typical Application Circuit

Block Diagram

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