BD9D321EFJ
4.5-18V 3.0A 1ch Synchronous Buck Converter

BD9D321EFJ is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current of up to 3A. The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product appropriate for equipment and devices that demand minimal standby power consumption. External phase compensation circuit is not necessary for it is a constant on-time control DC/DC converter with high speed response.

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

Product Detail

 
Part Number | BD9D321EFJ-E2
Status | Recommended
Package | HTSOP-J8
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

4.5

Vin1(Max.)[V]

18

Vout1(Min.)[V]

0.765

Vout1(Max.)[V]

7

Iout1(Max.)[A]

3

SW frequency(Max.)[MHz]

0.7

Light Load mode

Yes

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

4.9x6 (t=1)

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Features:

 Synchronous Single DC/DC Converter
 Constant On-time Control
 SLLM™ (Simple Light Load Mode) Control
 Over Current Protection
 Short Circuit Protection
 Thermal Shutdown Protection
 Under Voltage Lockout Protection
 Adjustable Soft Start
 HTSOP-J8 Package (Backside Heat Dissipation)

Evaluation
Board

 
    • Evaluation Board
    • BD9D321EFJ-E2EVK-101
    • This evaluation board has been specifically developed to evaluate the BD9D321EFJ synchronous buck DC/DC converter with integrated 100mΩ high-side Pch and 70mΩ low-side Nch MOSFETs.

  • User's Guide Purchase Inquiry
    • Evaluation Board
    • BD9D321EFJ-EVK-001
    • BD9D321EFJ-EVK-001 Evaluation board delivers an output 3.3 volts from an input 4.5 to 18 volts using BD9D321EFJ, a synchronous rectification step-down DC/DC converter integrated circuit, with output current rating of maximum 3A. It offers high efficiency in all load ranges by equipping the efficiency improvement function in light-load.

  • User's Guide Design Data Purchase Inquiry