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| Data Sheet No. PD94121 IRU1010-33 1A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR DESCRIPTION The IRU1010-33 is a low dropout three-terminal fixed output regulator with minimum of 1A output current capability. This product is specifically designed to provide well regulated supply for low voltage IC applications such as VGA, sound & DVD cards. The IRU1010-33 is guaranteed to have <1.3V dropout at full load current making it ideal to provide well regulated with 4.75V to 7V input supply. The IRU1010-33 is specifically designed to be stable with low cost aluminum capacitors while maintaining stability with low ESR tantalum caps. FEATURES Guaranteed < 1.3V Dropout at Full Load Current Fast Transient Response 1% Output Voltage Initial Accuracy Built-In Thermal Shutdown Available in SOT-223, D-Pak, Ultra Thin-Pak TM and 8-Pin SOIC Surface-Mount Packages APPLICATIONS VGA & Sound Card Applications Standard 3.3V Chip Set and Logic Applications TYPICAL APPLICATION 5V C1 10uF VIN 3 2 C2 10uF IRU1010-33 VOUT 3.3V / 1A Gnd 1 Figure 1 - Typical application of IRU1010-33 in a 5V to 3.3V regulator. PACKAGE ORDER INFORMATION TJ (C) 0 To 150 2-PIN PLASTIC TO-252 (D-Pak) IRU1010-33CD 2-PIN PLASTIC Ultra Thin-PakTM (P) IRU1010-33CP 8-PIN PLASTIC SOIC (S) IRU1010-33CS 3-PIN PLASTIC SOT-223 (Y) IRU1010-33CY Rev. 1.5 02/03/03 www.irf.com 1 IRU1010-33 ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN) .................................................... Power Dissipation ..................................................... Storage Temperature Range ...................................... Operating Junction Temperature Range ..................... 7V Internally Limited -65C To 150C 0C To 150C PACKAGE INFORMATION 2-PIN PLASTIC TO-252 (D-Pak) 2-PIN ULTRA THIN-PAKTM (P) 8-PIN PLASTIC SOIC (S) 3-PIN PLASTIC SOT-223 (Y) 3 VIN Tab is VOUT 3 VIN VIN NC NC Gnd 1 2 3 4 8 7 6 5 VOUT VOUT VOUT VOUT Tab is VOUT 3 2 1 VIN VOUT Gnd Tab is VOUT 1 Gnd 1 Gnd JA=70C/W for 0.5" Sq pad JA=70C/W for 0.5" Sq pad JA=55C/W for 1" Sq pad JA=90C/W for 0.4" Sq pad ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over C IN=1mF, VIN=5V, COUT=10mF, and T J=0 to 1258C. Typical values refer to TJ=258C. PARAMETER Output Voltage Line Regulation Load Regulation (Note 1) Dropout Voltage (Note 2) Current Limit Thermal Regulation Ripple Rejection Temperature Stability Long Term Stability RMS Output Noise SYM Vo TEST CONDITION Io=10mA, TJ=258C Io=10mA Io=10mA, 4.75V 1 Note 1: Low duty cycle pulse testing with Kelvin connections is required in order to maintain accurate data. Note 2: Dropout voltage is defined as the minimum differential voltage between VIN and VOUT required to maintain regulation at VOUT. It is measured when the output voltage drops 1% below its nominal value. 2 www.irf.com Rev. 1.5 02/03/03 IRU1010-33 PIN DESCRIPTIONS PIN# 1 PIN SYMBOL Gnd PIN DESCRIPTION Ground pin. This pin must be connected to ground plane using a low inductance short connection. The output of the regulator. This pin is also connected to the tab of the package. An output capacitor must be connected to this pin to insure stability of the regulator. Input pin of the regulator. 2 VOUT 3 VIN BLOCK DIAGRAM VIN 3 2 VOUT + 1.25V CURRENT LIMIT + THERMAL SHUTDOWN 1 Gnd Figure 2 - Simplified block diagram of the IRU1010-33. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 02/01 Rev. 1.5 02/03/03 www.irf.com 3 IRU1010-33 (D) TO-252 Package 2-Pin A C B K L M 458 D E O J N 78 Q P F H G R S R1 SYMBOL MIN MAX A 6.477 6.731 B 5.004 5.207 C 0.686 0.838 D 7.417 8.179 E 9.703 10.084 F 0.635 0.889 2.286 BSC G H 4.521 4.623 J &1.52 &1.62 K 2.184 2.388 L 0.762 0.864 M 1.016 1.118 N 5.969 6.223 O 1.016 1.118 P 0 0.102 Q 0.534 0.686 R R0.31 TYP R1 R0.51 TYP S 0.428 0.588 C L NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. 4 www.irf.com Rev. 1.5 02/03/03 IRU1010-33 (P) Ultra Thin-PakTM 2-Pin A A1 K E U V B H M L P G G1 N C C L R D SYMBOL A A1 B C D E G G1 H K L M N P R U V MIN MAX 5.91 6.17 5.54 5.79 6.02 6.27 1.70 2.03 0.63 0.79 0.17 0.33 2.16 2.41 4.45 4.70 9.42 9.68 0.76 1.27 0.02 0.13 0.89 1.14 0.25 0.25 0.94 1.19 28 68 2.92 3.30 5.08 NOM NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. Rev. 1.5 02/03/03 www.irf.com 5 IRU1010-33 (S) SOIC Package 8-Pin Surface Mount, Narrow Body H A B C E DETAIL-A PIN NO. 1 D 0.386 0.015 x 458 T K F J L DETAIL-A I G 8-PIN SYMBOL A B C D E F G H I J K L T MIN MAX 4.80 4.98 1.27 BSC 0.53 REF 0.36 0.46 3.81 3.99 1.52 1.72 0.10 0.25 78 BSC 0.19 0.25 5.80 6.20 08 88 0.41 1.27 1.37 1.57 NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. 6 www.irf.com Rev. 1.5 02/03/03 IRU1010-33 (Y) SOT-223 Package 3-Pin D B E H e e1 S SYMBOL A A1 B B1 C D E e e1 H Q Q1 Q2 S T MIN 1.498 0.02 2.895 0.637 0.239 6.299 3.30 2.209 4.496 6.70 08 78 78 0.838 1.092 MAX 1.702 0.11 3.15 0.85 0.381 6.706 3.708 2.953 4.699 7.30 108 168 168 1.05 1.30 NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. Q1 T A Q C Q2 B1 A1 Rev. 1.5 02/03/03 www.irf.com 7 IRU1010-33 PACKAGE SHIPMENT METHOD PKG DESIG D P S Y PACKAGE DESCRIPTION TO-252, (D-Pak) Ultra Thin-Pak SOT-223 TM PIN COUNT 2 2 8 3 PARTS PER TUBE 75 75 95 80 PARTS PER REEL 2500 2500 2500 2500 T&R Orientation Fig A Fig B Fig C Fig D SOIC, Narrow Body 1 1 1 1 1 1 Feed Direction Figure A Feed Direction Figure B 1 1 1 1 1 1 Feed Direction Figure C Feed Direction Figure D IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 02/01 8 www.irf.com Rev. 1.5 02/03/03 |
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