iru1160 International Rectifier Corp., iru1160 Datasheet

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iru1160

Manufacturer Part Number
iru1160
Description
6a Ultra Low Dropout Positive Adjustable Regulator -
Manufacturer
International Rectifier Corp.
Datasheet
FEATURES
APPLICATIONS
TYPICAL APPLICATION
PACKAGE ORDER INFORMATION
Rev. 1.4
08/20/02
0.62V Dropout at 6A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
VGA Card Applications
On-Board Low Voltage Regulator Supply such
as 3.3V to 2.8V
IRU1160
3.3V
5V
Figure 1 - Typical application of IRU1160 in a 3.3V to 2.8V.
0 To 125
T
J
(°C)
V
V
SENSE
V
CTRL
OUT
V
Adj
100uF
IN
C1
5
4
3
2
1
5-PIN PLASTIC
TO-263 (M)
IRU1160CM
6A ULTRA LOW DROPOUT POSITIVE
www.irf.com
C2
100uF
DESCRIPTION
The IRU1160 is a 6A regulator with extremely low drop-
out voltage using a proprietary bipolar process that
achieves comparable equivalent on resistance to that of
discrete MOSFETs. This product is specifically designed
to provide well regulated supply for applications requir-
ing 2.8V or lower voltages from 3.3V ATX power supplies
where high efficiency of a switcher can be achieved with-
out the cost and complexity associated with switching
regulators.
Ultra Thin-Pak
ADJUSTABLE REGULATOR
5-PIN PLASTIC
IRU1160CP
R1
100
1%
R2
124
1%
TM
(P)
Data Sheet No. PD94130
C3
100uF
IRU1160
2.7V
1

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iru1160 Summary of contents

Page 1

... Built-In Thermal Shutdown APPLICATIONS VGA Card Applications On-Board Low Voltage Regulator Supply such as 3.3V to 2.8V TYPICAL APPLICATION 3.3V V IRU1160 V 5V Figure 1 - Typical application of IRU1160 in a 3.3V to 2.8V. PACKAGE ORDER INFORMATION T (° 125 Rev. 1.4 08/20/02 6A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR DESCRIPTION The IRU1160 regulator with extremely low drop- ...

Page 2

... IRU1160 ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) .................................................... 7V IN Control Input Voltage (V ) ..................................... 14V CTRL Power Dissipation ..................................................... Internally Limited Storage Temperature Range ...................................... Operating Junction Temperature Range ..................... PACKAGE INFORMATION 5-PIN PLASTIC TO-263 (M) FRONT VIEW CTRL Tab OUT V OUT Adj SENSE =35 C/W for 0.5" square pad ...

Page 3

... This pin must always be higher than V order for the device to regulate. (See specifications) BLOCK DIAGRAM CTRL CURRENT LIMIT THERMAL SHUTDOWN Figure 2 - Simplified block diagram of the IRU1160. Rev. 1.4 08/20/02 TEST CONDITION V =0V for all below conditions: ADJ V =2.75V, V =2.05V, Io=1.5A CTRL ...

Page 4

... ADJ small error to the output voltage and should be consid- ered when very precise output voltage setting is required. Load Regulation Since the IRU1160 has separate pins for the output (V and the sense ( ideal for providing true re- SENSE mote sensing of the output voltage at the load. This ...

Page 5

... Stability The IRU1160 requires the use of an output capacitor as part of the frequency compensation in order to make the regulator stable. Typical designs for the microproces- sor applications use standard electrolytic capacitors with typical ESR in the range 100mV and an output capacitance of 500 to 1000mF. Fortunately as the ca- pacitance increases, the ESR decreases resulting in a fixed RC time constant ...

Page 6

... IRU1160 (M) TO-263 Package 5-Pin SYMBOL MIN MAX A 10.05 10.668 B 8.28 9.169 C 4.31 4.597 D 0.66 0.91 E 1.14 1.40 G 1.575 1.829 H 14.605 15.875 K 1.143 1.68 L 0.00 0.305 M 2.49 2.74 N 0.33 0.58 P 2.286 2.794 1.143 2.67 U 6.50 REF V 7.75 REF NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. www.irf.com Rev. 1.4 ...

Page 7

... Rev. 1.4 08/20/02 TM (P) Ultra Thin-Pak 5-Pin SYMBOL MIN MAX A 9.27 9.52 A1 8.89 9.14 B 7.87 8.13 C 1.78 2.03 D 0.63 0.79 E 0.25 NOM G 1.72 H 10.41 10.67 K 0.76 1.27 L 0.03 0.13 M 0.89 1.14 N 0.25 P 0.79 1. 5.59 NOM V 7.49 NOM NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. www.irf.com IRU1160 ...

Page 8

... IRU1160 PACKAGE SHIPMENT METHOD PKG PACKAGE DESIG DESCRIPTION M TO-263 TM P Ultra Thin-Pak 1 1 Feed Direction Figure A IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 8 PIN PARTS COUNT PER TUBE Feed Direction Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice ...

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