ROHM Supplier Page

BD9673(1.5 A) and BD9876(3.0 A) Regulators


Flexible step down switching regulator with built-in MOSFET from ROHM


ROHM's flexible switching regulators with built-in MOSFET enable arbitrary setting of the operating frequency via external resistor. The broad input voltage range up to 45 V, wide operating temperature range (-40ºC to +125ºC), and external synchronization capability (see applicable models below) make them ideal for a wide variety of applications. In addition, multiple protection circuits, including thermal shutdown (TSD), overcurrent protection (OCP), and under voltage lock out (UVLO), ensure a high degree of reliability.
ROHM's Switching Regulator

Features
  • Wide input voltage range Up to 45 V
  • Integrated power MOSFET with 200 mΩ RDSON
  • Adjustable output voltage: 1 to VCC x 0.7 V
  • Feedback voltage 1.0 V ±1%
  • 300 kHz preset oscillation frequency
  • ~0 A standby current
  • Thermal pad package
  • External synch capability (200 kHz ~ 500 kHz)
  • Soft start function
  • ON/OFF control through EN pin
  • Integrated protection
    • Over-current protection (OCP)
    • Thermal shutdown (TSD)
    • Under-voltage lockout (UVLO)

Digi-Key P/N Manufacturer P/N Description  
BD9673EFJ-E2TR-ND BD9673EFJ-E2 IC BUCK SYNC ADJ 1.5A HTSOP8 Datasheet
BD9673EFJ_EVK-ND BD9673EFJ_EVK BOARD EVAL BUCK REG BD9673 Datasheet
BD9876EFJ-E2TR-ND BD9876EFJ-E2 IC BUCK SYNC ADJ 3A HTSOP8 Datasheet
BD9876EFJ_EVK-ND BD9876EFJ_EVK BOARD EVAL BUCK REG BD9676 Datasheet