BD9B333GWZ
Single Synchronous Buck DC/DC Converter, 2.7V to 5.5V Input, 3.0A Integrated MOSFET

BD9B333GWZ is a synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. This IC, which is capable of providing current up to 3A, features fast transient response by employing constant on-time control system. It offers high oscillating frequency at low inductance. With its original constant on-time control method which operates low consumption at light load, this product is ideal for equipment and devices that demand minimal standby power consumption. BD9B333GWZ achieves the high power density and offer a small footprint on the PCB by employing small CSP package.

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* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

 
Part Number | BD9B333GWZ-E2
Status | Recommended
Package | UCSP35L1
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

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

SW frequency(Max.)[MHz]

1.3

Light Load mode

Yes

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-55

Operating Temperature (Max.)[°C]

150

Package Size [mm]

1.98x1.8 (t=0.4)

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Features:

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6 V to VIN x 0.8 V
  • Output Current: 3A (Max)
  • Switching Frequency: 1.3MHz (Typ)
  • High-Side MOSFET ON Resistance: 23mΩ (Typ)
  • Low-Side MOSFET ON Resistance: 23mΩ (Typ)
  • Standby Current: 0μA (Typ)

Evaluation
Board

 
    • Evaluation Board
    • BD9B333GWZ-EVK-001
    • This EVK was developed for ROHM’s synchronous buck DC/DC converter BD9B333GWZ. The BD9B333GWZ accepts a power supply input range of 2.7V to 5.5V, and generates an output voltage from 0.6V to 0.8 x VIN using external resistors. It has a built-in 23mΩ N-channel MOSFET on both upper and lower sides that is operating frequency is 1.3MHz.

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