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2.7V to 5.5V Input, 3A Integrated MOSFET Single Synchronous Buck DC/DC Converter - BD9B331GWZ

ROHM's high efficiency switching regulator, BD9B331GWZ, is a step-down converter designed to produce a low voltage output of 0.6V to 3.3V from a 2.7V to 5.5V power supply line. It offers high efficiency in all load ranges by automatic PFM/PWM adjustment. It employs an On time control system to provide faster transient response to sudden change in load.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BD9B331GWZ-E2
Status | Active
Package | UCSP30L1
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Buck / Boost / Buck-Boost / Inverting

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

2.7

Vin1(Max.)[V]

5.5

Vout1(Min.)[V]

0.6

Vout1(Max.)[V]

4.4

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

1.3

Light Load mode

Yes

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

  • Fast transient response with On time control system.
  • High efficiency for all load range with synchronous rectifier (Nch/Nch FET) and adaptive PFM/PWM system.
  • Adjustable Soft-start function.
  • Thermal and UVLO protection.
  • Short-circuit current protection with pulse count
  • Shutdown function.