IRU1050CD International Rectifier, IRU1050CD Datasheet

IC REG ADJ LDO 5.0A D-PAK

IRU1050CD

Manufacturer Part Number
IRU1050CD
Description
IC REG ADJ LDO 5.0A D-PAK
Manufacturer
International Rectifier
Datasheet

Specifications of IRU1050CD

Regulator Topology
Positive Adjustable
Voltage - Output
2.5 ~ 3.3 V
Voltage - Input
Up to 7V
Voltage - Dropout (typical)
1.1V @ 5A
Number Of Regulators
1
Current - Output
5A
Current - Limit (min)
5.1A
Operating Temperature
0°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
TO-252-2, DPak (2 Leads + Tab), TO-252AA, SC-63
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*IRU1050CD
IRU1050-CD
IRU1050-CD

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IRU1050CD
Manufacturer:
IR
Quantity:
1 200
Part Number:
IRU1050CDTR
Manufacturer:
MICREL
Quantity:
3 669
FEATURES
APPLICATIONS
TYPICAL APPLICATION
Notes: Pentium P54C, P55C, Klamath, Pentium Pro,VRE are trademarks of Intel Corp. Cyrix M2 is trademark of Cyrix Corp.
Power PC is trademark of IBM Corp.
PACKAGE ORDER INFORMATION
Rev. 1.8
08/20/02
Guaranteed < 1.3V Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-In Thermal Shutdown
Low Voltage Processor Applications such as:
P54C , P55C , Cyrix M2 ,
POWER PC , AMD
GTL+ Termination
PENTIUM PRO , KLAMATH
Low Voltage Memory Termination Applications
Standard 3.3V Chip Set and Logic Applications
0 To 150
T
J
(°C)
Figure 1 - Typical Application of IRU1050 in a 5V to 3.38V regulator designed
2-PIN PLASTIC
TO-252 (D-Pak)
IRU1050CD
IRU1050
5V
to meet the Intel P54C
3-PIN PLASTIC
IRU1050CM
TO-263 (M)
V
OUT
1500uF
V
Adj
www.irf.com
IN
C1
3
2
1
DESCRIPTION
The IRU1050 is a low dropout three-terminal adjustable
regulator with minimum of 5A output current capability.
This product is specifically designed to provide well regu-
lated supply for low voltage IC applications such as
Pentium
for Pentium Pro
The IRU1050 is also well suited for other processors
such as Cyrix , AMD and Power PC
The IRU1050 is guaranteed to have <1.3V dropout at full
load current making it ideal to provide well regulated
outputs of 2.5V to 3.3V with 4.75V to 7V input supply.
5A LOW DROPOUT POSITIVE
processors.
Ultra Thin-Pak
2-PIN PLASTIC
ADJUSTABLE REGULATOR
IRU1050CP
P54C ,P55C
R1
121
R2
205
and Klamath
TM
(P)
as well as GTL+ termination
Data Sheet No. PD94126
C2
2x 1500uF
3-PIN PLASTIC
processor applications.
TO-220 (T)
IRU1050CT
3.38V / 5A
IRU1050
applications.
1

Related parts for IRU1050CD

IRU1050CD Summary of contents

Page 1

... Power PC is trademark of IBM Corp. PACKAGE ORDER INFORMATION T (°C) 2-PIN PLASTIC J TO-252 (D-Pak 150 IRU1050CD Rev. 1.8 08/20/02 5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR DESCRIPTION The IRU1050 is a low dropout three-terminal adjustable regulator with minimum of 5A output current capability. This product is specifically designed to provide well regu- ...

Page 2

IRU1050 ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) .................................................... 7V IN Power Dissipation ..................................................... Internally Limited Storage Temperature Range ...................................... Operating Junction Temperature Range ..................... PACKAGE INFORMATION 2-Pin Plastic TO-252 (D-Pak) 3-Pin Plastic TO-263 (M) FRONT VIEW FRONT VIEW 3 ...

Page 3

PIN DESCRIPTIONS PIN # PIN SYMBOL PIN DESCRIPTION 1 Adj A resistor divider from this pin to the The output of the regulator. A minimum of 10mF capacitor must be connected from this pin OUT to ground ...

Page 4

IRU1050 Output Voltage Setting The IRU1050 can be programmed to any voltages in the range of 1.25V to 5.5V with the addition of R1 and R2 external resistors according to the following formula 3R2 V ...

Page 5

Assuming the following specifications 3.5V OUT I = 4.6A OUT(MAX 358C A The steps for selecting a proper heat sink to keep the junction temperature below 1358C is given as: 1) Calculate ...

Page 6

IRU1050 V ESR V ESL T LOAD 1050plt1-1.0 CURRENT LOAD CURRENT RISE TIME Figure 5 - Typical regulator response to the fast load current step. An example of a regulator design to meet the Intel P54C VRE specification is given ...

Page 7

Figure 6 shows the completed schematic for our ex- ample OUT IN C1 IRU1050 1500uF Adj Figure 6 - Final schematic for the Intel VRE application. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA ...

Page 8

IRU1050 (D) TO-252 Package 2-Pin 458 NOTE: ALL MEASUREMENTS www.irf.com SYMBOL MIN MAX A 6.477 6.731 B ...

Page 9

Rev. 1.8 08/20/02 (M) TO-263 Package 3-Pin SYMBOL MIN MAX A 10.05 10.312 B 8.28 8.763 C 4.31 4.572 D 0.66 0.91 E 1.14 ...

Page 10

IRU1050 (P) Ultra Thin-Pak 2-Pin SYMBOL MIN MAX A 5.91 6.17 A1 5.54 5.79 B 6.02 6.27 C 1.70 2.03 D ...

Page 11

Rev. 1.8 08/20/02 (T) TO-220 Package 3-Pin E-PIN a (5x) D SYMBOL MIN MAX A 4.06 4. 7.58 b 0.63 1.02 b1 1.14 1.52 C1 0.38 0.56 ...

Page 12

IRU1050 PACKAGE SHIPMENT METHOD PKG PACKAGE DESIG DESCRIPTION D TO-252, (D-Pak) M TO-263 P Ultra Thin-Pak TM T TO-220 1 1 Feed Direction Figure A IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 12 ...

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