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IRU3038, IRU3038CF, IRU3038CFTR

Table of contents:
Info of IRU3038
Info of IRU3038CF
Info of IRU3038CFTR

IRU3038, IRU3038CF, IRU3038CFTR Selling Leads, Datasheet

MFG:International Rectifier Category:Integrated Circuits (ICs) Package Cooled:IRF D/C:02+

IRU3038, IRU3038CF, IRU3038CFTR Datasheet download

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Part Number: IRU3038CF

Category: Integrated Circuits (ICs)

MFG: International Rectifier

Package Cooled: IRF

D/C: 02+

Description: IC CTRL SYNCH PWM 14-PIN TSSOP

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IRU3038 General Description

The IRU3038 controller IC is designed to provide a low cost synchronous Buck regulator for voltage tracking applications such DDR memory and general purpose on-board DC to DC converter. Modern micro processors combined with DDR memory, need high-speed bandwidth data bus which requires a particular bus termination voltage. This voltage will be tightly regulated to track the half of chipset voltage for best performance. The IRU3038 together with dual N-channel MOSFETs such as IRF7313, provide a low cost solution for such applications. This device features a programmable frequency set from 200KHz to 400KHz, under-voltage lockout for both Vcc and Vc supplies, an external programmable soft-start function as well as output under-voltage detection that latches off the device when an output short is detected.

IRU3038 Maximum Ratings

Vcc Supply Voltage .................................................................... 25V
Vc Supply Voltage ........................30V (not rated for inductive load)
Storage Temperature Range ..................................-65°C To 150°C
Operating Junction Temperature Range ....................0°C To 125°C

IRU3038 Features

· Synchronous Controller in 14-Pin Package
· Operating with single 5V or 12V supply voltage
· 200KHz to 400KHz operation set by an external resistor
· Soft-Start Function
· Fixed Frequency Voltage Mode
· 500mA Peak Output Drive Capability
· Uncommitted Error Amplifier available for DDR voltage tracking application
· 1.25V Reference Voltage
· Protects the output when control FET is shorted

IRU3038 Typical Application

· DDR memory source sink Vtt application
· Low cost on-board DC to DC such as 5V to 3.3V, 2.5V or 1.8V
· Graphic Card
· Hard Disk Drive

IRU3038 Connection Diagram

IRU3038CF Parameters

Technical/Catalog Information	IRU3038CF
Vendor	International Rectifier
Category	Integrated Circuits (ICs)
PWM Type	Voltage Mode
Number of Outputs	1
Package / Case	14-TSSOP
Packaging	Tube
Duty Cycle	95%
Voltage - Supply	5 V ~ 25 V
Frequency-Max	440kHz
Buck	Yes
Boost	No
Flyback	No
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	*
Operating Temperature	0°C ~ 70°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	IRU3038CF IRU3038CF

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