IRDC3898 International Rectifier, IRDC3898 Datasheet

IRDC3898

Manufacturer Part Number

IRDC3898

Description

Power Management IC Development Tools Design Kit POL IC

Manufacturer

International Rectifier

Type

DC/DC Converters, Regulators & Controllersr

Datasheet

1.IRDC3898.pdf (17 pages)

Specifications of IRDC3898

Product

Evaluation Boards

Tool Is For Evaluation Of

IR3898

Input Voltage

12 V

Output Voltage

1.2 V

Factory Pack Quantity

Current page: 1 of 17
Download datasheet (5Mb)

DESCRIPTION

The

converter,

performance and flexible solution in a small

4mm X 5 mm Power QFN package.

Key features offered by the IR3898 include

internal Digital Soft Start/Soft Stop, precision

0.5Vreference

thermal protection, programmable switching

frequency, Enable input, input under-voltage

lockout for proper start-up, enhanced line/

load regulation with feed forward, external

frequency

clocking, internal LDO

up.

•

•V

•

BOARD FEATURES

3/17/2011

SupIRBuck

L= 1.0uH

out

=600KHz

IR3898

= 3x22uF (ceramic 805)

= +0.75V @ 0- 4.3A (+0.675V@0-4.3A)

= +1.5V (1.35Vminimum)

=4x22uF (Ceramic 0805)

USER GUIDE FOR Vtt RAIL EVALUATION BOARD USING IR3898

synchronization

providing

voltage,

This evaluation board is a preliminary version meant for the engineering evaluation of the IR3898.

Based on the results of the continuing evaluation, this board can evolve and change without notice

synchronous

and pre-bias start-

compact,

Power

with

smooth

Good

buck

high

Confidential

Pulse by pulse current limit and output over-

current protection function is implemented by

sensing the voltage developed across the on-

resistance

MOSFET for optimum cost and performance

and the current limit is thermally compensated.

This user guide contains the schematic and bill

of materials for the IR3898 evaluation board.

The guide describes operation and use of the

evaluation board itself. Detailed

information for IR3898 is available in the

IR3898 data sheet.

IRDC3898-Vtt rail

the

synchronous

application

rectifier

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