BD9x Integrated MOSFET DC-DC Buck Converters

ROHM Semiconductor BD9x Integrated MOSFET DC-DC Buck Converters are synchronous buck switching regulators with built-in power MOSFETs. These ICs provide currents in a range from 1A to 6A. ROHM BD9x DC-DC Buck Converters deliver fast transient response by employing a constant on-time control system. This allows high oscillating frequency at low inductance. The devices employ an original constant on-time control method that provides low consumption at light load. This feature makes these devices ideal for equipment that demands minimal standby power consumption.

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Qty. RoHS Mounting Style
Package/Case
Output Voltage
ROHM Semiconductor LDO Voltage Regulators QuiCur™, Automotive 500mA 3.3V, Fixed Output LDO Regulators With Output shutdown Function
Datasheet
1.998In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT TO-252-5 3.3 V
ROHM Semiconductor LDO Voltage Regulators Nano Cap™, QuiCur™, 500mA 3.3V, Fixed Output LDO Regulator
Datasheet
1.993In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT TO-252-3 3.3 V
ROHM Semiconductor LDO Voltage Regulators QuiCur™, Automotive 500mA 5.0V, Fixed Output LDO Regulators With Output shutdown Function
Datasheet
1.943In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT TO-252-5 5 V
ROHM Semiconductor LDO Voltage Regulators Nano Cap™, QuiCur™, 500mA 5.0V, Fixed Output LDO Regulator
Datasheet
1.880In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT TO-252-3 5 V
ROHM Semiconductor LDO Voltage Regulators Nano Cap™, QuiCur™, 500mA 5.0V, Fixed Output LDO Regulator
Datasheet
2.055In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 5 V
ROHM Semiconductor LDO Voltage Regulators Nano Cap™, QuiCur™, 500mA 5.0V, Fixed Output LDO Regulator
Datasheet
1.982In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT TO-252-5 5 V
ROHM Semiconductor Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter
Datasheet
1.525In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-6 700 mV to 22.4 V
ROHM Semiconductor Switching Voltage Regulators 1ch Buck Converter Integrated FET
Datasheet
1.464In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 800 mV to 42 V
ROHM Semiconductor LDO Voltage Regulators QuiCur, Automotive 500mA 3.3V, Fixed Output LDO Regulators With Enable Input
Datasheet
4.951In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 3.3 V
ROHM Semiconductor LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators
Datasheet
2.514In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 5 V
ROHM Semiconductor Switching Voltage Regulators 2.7 V to 5.5 V Input, 2 A Integrated MOSFET Single Synchronous Buck DC/DC Converter
Datasheet
3.378In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-8 800 mV to 3.85 V
ROHM Semiconductor Switching Voltage Regulators 4.5V to 28V Input, 1.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E105FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char
Datasheet
8.783In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-6 700 mV to 800 mV
ROHM Semiconductor Switching Voltage Regulators 4.5V to 26V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E200FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char
Datasheet
6.830In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-6 700 mV to 20.8 V
ROHM Semiconductor Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter
Datasheet
3.531In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-6 700 mV to 22.4 V
ROHM Semiconductor Switching Voltage Regulators 4.5V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: This is the product guarantees long time support in Industrial market. BD9E304FP4-LBZ is a single synchronous buck DC/DC converter with built-in low on-resistance powe
Datasheet
6.458In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-8 700 mV to 28.8 V
ROHM Semiconductor Switching Voltage Regulators Nano Pulse Control 3.5V to 40V Input, 2A Single 2.2MHz Buck DC/DC Converter For Automotive: BD9P208MUF-C is current mode synchronous buck DC/DC converter integrating POWER MOSFETs.
Datasheet
4.433In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT VQFNFV4040-EP-24 800 mV to 8.5 V
ROHM Semiconductor Switching Voltage Regulators DC/DC Converter 7V to 36V input
Datasheet
14.369In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 1 V to 28.8 V
ROHM Semiconductor Switching Voltage Regulators 1ch Buck Converter Integrated FET
Datasheet
6.087In Stock
4.970Expected 8/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 1 V to 76 V
ROHM Semiconductor LDO Voltage Regulators QuiCur, Automotive 500mA, Adjustable Output LDO Regulators With Enable Input
Datasheet
749In Stock
2.500Expected 10/28/2026
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8
ROHM Semiconductor LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators With Enable Input
Datasheet
2.265In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 5 V
ROHM Semiconductor Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E201FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. BD9E201FP4-Z is a current mode control. It includes internal p
Datasheet
1.840In Stock
Min.: 1
Mult.: 1
: 3.500

SMD/SMT TSOT-23-6 700 mV to 20.8 V
ROHM Semiconductor Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter
Datasheet
250In Stock
Min.: 1
Mult.: 1
: 250

SMD/SMT HTSOP-J8 1 V to 25.2 V
ROHM Semiconductor Switching Voltage Regulators 7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter
Datasheet
157In Stock
Min.: 1
Mult.: 1
: 250

SMD/SMT HTSOP-J8 1 V to 28.8 V
ROHM Semiconductor Switching Voltage Regulators BUCK SWITCHING REG IC
Datasheet
498In Stock
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 800 mV to 42 V
ROHM Semiconductor Switching Voltage Regulators IC Pwr Swtch Reg Multi Output
Datasheet
4.182In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT HTSOP-J8 5 V, 800 mV to 4 V