IRDC3038 International Rectifier, IRDC3038 Datasheet

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IRDC3038

Manufacturer Part Number
IRDC3038
Description
KIT W/IRU3038 PWM CTRL DDR 14-PI
Manufacturer
International Rectifier
Datasheet

Specifications of IRDC3038

Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*IRDC3038
IRU3038 EVALUATION BOARD USER GUIDE
INTRODUCTION
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 volt-
age. This voltage will be tightly regulated to track the
half of chipset voltage for best performance.
INPUT/OUTPUT CONNECTIONS
The following is the input/output connections:
Inputs:
J1: Input (+5V)
J2: Gnd
Outputs:
J5: V
J6: Gnd
Other Connections:
J7: V
J3: V
Rev. 1.2
06/05/02
REF
OUT
DDQ
(output for reference voltage)
(+2.5V)
(for tracking system)
www.irf.com
SPECIFICATION DATA
The connection points is shown in Figure 1. Connect the
power supply cables according to this figure, minimize
wire lengths to reduce losses in the wire. Test point J8
and J9 provide easy connections for oscilloscope volt-
age probe to monitor the output inductor point and the
output voltages.
Switcher:
V
V
I
DV
FS = 200KHz
OUT
IN
OUT
OUT
= 5V
= 8A
= 2.5V
= 75mV
IRDC3038
1

Related parts for IRDC3038

IRDC3038 Summary of contents

Page 1

... The connection points is shown in Figure 1. Connect the power supply cables according to this figure, minimize wire lengths to reduce losses in the wire. Test point J8 and J9 provide easy connections for oscilloscope volt- age probe to monitor the output inductor point and the output voltages. www.irf.com IRDC3038 1 ...

Page 2

... CONNECTION DIAGRAM Figure 1 - Connection diagram of evaluation-board for IRU3038. Rev. 1.2 06/05/02 Load www.irf.com IRDC3038 Power Supply 6A Supply + ...

Page 3

... Figure 2 - Top layer of evaluation-board for IRU3038. Rev. 1.2 06/05/02 the output voltage at the point of regulation. The PCB is 4-layers board, one layer is dedicated to Power GND and the analog GND is kept separated from the PGND and it is connected at a single point. www.irf.com IRDC3038 3 ...

Page 4

... SCHEMATIC Figure 3 - Schematic of evaluation-board for IRU3038. Rev. 1.2 06/05/ Vcc www.irf.com IRDC3038 4 ...

Page 5

... Rev. 1.2 06/05/02 Value Qty Part# 2 IRF7460 1 IRU3038 1 BAT54S 1 D03316P-102HC 1 D05022P-332HC 1 ECS-T1CD336R 2 16TPB47M 2 6TPC150M 2 ECJ-2VF1E104Z 1 ECJ-3YB1E105K 1 ECJ-2VB1H182K 1 ECJ-2VB2D471K 3 ECJ-2VF1C105Z www.irf.com IRDC3038 Manuf Web site (www.) IR irf.com IR IR Coilcraft coilcraft.com Coilcraft Panasonic maco.panasonic.co.jp Sanyo sanyo.com/industrial Sanyo Panasonic maco.panasonic.co.jp Panasonic Panasonic Panasonic Panasonic 5 ...

Page 6

... V =2.5V IN OUT Vss V OUT I OUT Figure 17 - Shutdoown the output by pulling down the soft-start Figure 19 - Transient response @ I Rev. 1.2 06/05/ Figure 16 - Start-up time @ I Figure 18 - 3.3V output voltage ripple @ I 0A Figure 20 - Transient response @ 2A. OUT www.irf.com IRDC3038 V IN Vss V OUT =5A. OUT =5A. OUT 4A. OUT 6 ...

Page 7

... IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Rev. 1.2 06/05/02 Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 7/25/2002 www.irf.com IRDC3038 TAC Fax: (310) 252-7903 7 ...

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