IR3894 IRF [International Rectifier], IR3894 Datasheet

IR3894

Manufacturer Part Number

IR3894

Description

12A HIGHLY INTERGRATED SUPLRBUCK

Manufacturer

IRF [International Rectifier]

Datasheet

1.IR3894.pdf (43 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

IR3894MTR1PBF

Manufacturer:

Quantity:

8 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

IR3894MTRPBF

Manufacturer:

Quantity:

12 000

Company:

BOSTOCK HK LIMITED

Part Number:

IR3894MTRPBF

Manufacturer:

Quantity:

8 000

Company:

H&T Electronics

Part Number:

IR3894MTRPBF

Quantity:

4 800

Company:

H&T Electronics

Part Number:

IR3894MTRPBF

Quantity:

270

Current page: 1 of 43
Download datasheet (3Mb)

FEATURES

BASIC APPLICATION

 Single 5V to 21V application

 Wide Input Voltage Range from 1.0V to 21V with

 Output Voltage Range: 0.5V to 0.86* Vin

 Enhanced Line/Load Regulation with Feed‐Forward

 Programmable Switching Frequency up to 1.5MHz

 Internal Digital Soft‐Start/Soft‐Stop

 Enable input with Voltage Monitoring Capability

 Thermally Compensated Current Limit with robust

 Smart internal LDO to improve light load and full load

 External Synchronization with Smooth Clocking

 Enhanced Pre‐Bias Start‐Up

 Precision Reference Voltage (0.5V+/‐0.5%) with

 Vp for Tracking Applications ((Source/Sink Capability

 Integrated MOSFET drivers and Bootstrap Diode

 Thermal Shut Down

 Programmable Power Good Output with tracking

 Monotonic Start‐Up

 Operating temp: ‐40

 Small Size: 5mm x 6mm PQFN

 Lead‐free, Halogen‐free and RoHS Compliant

Figure 1: IR3894 Basic Application Circuit

external Vcc

hiccup mode over current protection

efficiency

margining capability

+/‐12A)

capability

AUGUST 08, 2012 | DATA SHEET | Rev 3.1

C < Tj < 125

Single‐Input Voltage, Synchronous Buck Regulator

- 1 -`

12A Highly Integrated SupIRBuck

DESCRIPTION

The IR3894 SupIRBuck

integrated and highly efficient DC/DC regulator.

The onboard PWM controller and MOSFETs make

IR3894 a space‐efficient solution, providing accurate

power delivery.

IR3894 is a versatile regulator which offers

programmable switching frequency and the fixed

internal current limit

The switching frequency is programmable from 300 kHz

to 1.5MHz for an optimum solution.

It also features important protection functions, such as

Pre‐Bias startup, thermally compensated current limit

over voltage protection and thermal shutdown to give

required system level security in the event of fault

conditions.

APPLICATIONS

 Netcom Applications

 Embedded Telecom Systems

 Server Applications

 Storage Applications

 Distributed Point of Load Power Architectures

Figure 2: IR3894 Efficiency

is an easy‐to‐use, fully

IR3894

PD‐97745

Related parts for IR3894

Related keywords

IR3894 datasheet
IR3894 data sheet
IR3894 pdf datasheet
IR3894 component
IR3894 part
IR3894 distributor
IR3894 RoHS
IR3894 datasheet download