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(R) SPX2975 400mA Low Dropout Voltage Regulator FEATURES 5V Fixed Output High Accuracy Very Low Current Consumption: 70A Power-on and Under Voltage Reset Reset Low Down to VOUT = 1V Extremely Low Dropout Voltage Short Circuit Protection Programmable Safety Timer 4kV ESD Protection APPLICATIONS Automotive Electronics Wireless Station Industrial Systems SPX2975 SPX2975 5 Pin TO-220 5 Pin TO-263 12345 12345 Now Available in Lead Free Packaging GND RD VOUT RO I DESCRIPTION Sipex's SPX2975 is a low dropout linear regulator with integrated PNP pass transistor. The part is available in a 5 pin TO-220 package or surface mount TO-263. The part used to convert an automotive battery voltage, with allowable input up to 45V, down to 5V with at least 400mA output current delivered. Internal power consumption is kept to 60uA ideal for applications where micropower operation is important. At over-temperature the SPX2975 is turned off by the integrated temperature protection circuit. A reset signal is generated for a typical output voltage of 4.65V with a time delay that can be programmed by an external delay capacitor. TYPICAL APLICATION CIRCUIT IIN C11 1000F VIN C12 100nF I 1 5 VOUT IOUT CQ 22F GND SPX2975 RD IRD,d IRD,c CD 47nF 4 3 GND IGND 2 RO IRO REXT 5k VRD VRD Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 1 RD VOUT RO I VOUT ABSOLUTE MAXIMUM RATINGS Input Voltage ...................................................................... -42V to 45V Output Voltage .................................................................... -1.0 to 16V Output Current ............................................................ Internally limited Reset Output Voltage .......................................................... -0.3 to 25V Reset Output Current ..................................................... -5mA to +5mA Reset Delay Voltage ........................................................ -0.3V to 7.0V Reset Delay Current ......................................................... -2mA to 2mA Storage Temperature .................................................. -50C to +150C Junction Temperature.(Note 1) ................................... -40C to +150C 5 Pin TO-220 TJA...............................................................................................27.8C/W TJC.................................................................................................79C/W 5 Pin T0 263 TJA...............................................................................................57.2C/W TJC................................................................................................7.6C/W These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. ELECTRICAL CHARACTERISTICS VIN = 13.5V; -40C < Tj < 150C. Unless otherwise specified. PARAMETER Input Voltage Junction Temperature Output Voltage Output Voltage Output Current limitation (note 1) Output Leakage Current Current Consumption Current Consumption Current Consumption Dropout Voltage Load Regulation Line Regulation PSRR Temperature Output Voltage Drift Reset Switching Threshold Reset Output Low Voltage Reset Output Leakage Current Reset Charging Current Upper Timing Threshold Lower Timing Threshold Reset Delay Time Reset Reaction Time 3.0 1.5 0.2 10 4.5 -15 (note 2) MIN 5.5 -40 4.9 4.9 450 5.0 5.0 700 0.1 70 7 17 350 5 2 60 0.2 4.65 0.2 0 5.5 1.8 0.4 16 0.5 4.8 0.4 10 9.0 2.2 0.7 22 2.0 100 200 10 22 500 30 15 TYP MAX 42 150 5.1 5.1 UNITS V C V V V A A mA mA mV mV mV dB mV/K V V A A V V mS s VTH Rext 5k ; VOUT > 1 V VROH = 5V VRD = 1V VthH VthL CO = 47nF, Td CO = 47nF, Trv IOUT = 1mA IOUT = 250mA IOUT = 400mA IOUT = 300mA VDO = VOUT - VIN IOUT = 5mA to 400mA VIN = 8V to 32V IOUT = 5mA fr = 100Hz; Vr = 0.5Vpp 5mA < IQ < 400mA 6V < VI < 28V 5mA < IQ < 200mA 6V < VI < 40V CONDITIONS Note 1: Specifications in the -40C to 150C range are guaranteed by design, not production tested. Note 2: Measured when the output voltage (Vout) has dropped 100mV form the nominal value obtained at Vin=13.5V Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 2 FUNCTIONAL DIAGRAM Temperature Sensor Current Limit VIN 1 Buffer Bandgap Reference RD 4 Saturation Control & Protection Circuit 5 VOUT Reset Generator 3 2 RO GND PIN DESCRIPTION PIN NUMBER 1 2 3 4 5 PIN NAME VIN RO GND RD VOUT DESCRIPTION LDO Input. Bypass VIN to GND with a Ceramic capacitor. Reset Output. RO remains low while VOUT is below the reset switching threshold. RO is in open conector output. Ground. This pin also functions as a heatsink. Solder to large pads or the circuit-board ground plane to maximize thermal dissipation. Reset Delay. RD connects capacitor to GND for setting delay time. LDO Output. Bypass VOUT to GND with a minimum 22F capacitor with ESR less than 5 at 10kHz. Vth = 4.65V VOUT Trr VROL = 0.2V Reset Timing Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 3 TPYICAL PERFORMANCE CHARACTERISTICS Output Current IQ Vs Temperature Tj 800 700 600 500 Dropout Voltage Vdr Vs Output Current IQ 1200 1000 800 600 400 200 0 125C 25C 400 300 200 100 0 -40 -20 0 20 40 60 80 100 120 140 160 Dropout Voltage Vdr (mV) IQ (mA) 0 100 200 300 400 500 600 Tj (DegC) Output Current IQ Current Consumption Iq vs Output Current IQ Current Consumption Iq vs Output Current IQ 3 60 50 2 Iq (mA) Iq (mA) 40 30 20 10 1 0 0 20 40 60 80 100 120 Output Current IQ (mA) 0 0 100 200 300 400 500 600 Output Current IQ (mA) Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 4 TPYICAL PERFORMANCE CHARACTERISTICS Load Regulation vs Temperature 4.8 Reset Threshold vs Temperature 0.030 0.025 4.75 Load Regulation (V) Reset Threshold (V) 10 60 Temperature (C) 110 160 0.020 0.015 0.010 0.005 0.000 -40 4.7 4.65 4.6 4.55 4.5 -40 10 60 Temperature (C) 110 160 Vout vs Temperature 5.20 5.15 5.10 Reset Delay Time (sec) 0.022 0.020 0.018 0.016 0.014 0.012 Reset Delay vs Temperature Vout @ 42V (V) 5.05 5.00 4.95 4.90 4.85 4.80 -40 0.010 10 60 Temperature (C) 110 160 -40 10 60 Temperature (C) 110 160 Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 5 PACKAGE: 5 PIN TO-220 E E/2 A B A SEATING PLANE Q H1 oP F D D1 L1 D CHAMFER OPTIONAL CC D D L e e1 b C1 J1 A 5 PIN TO-220 Dimensions in (inches) MIN NOM MAX A b C1 D E e e1 F H1 J1 L L1 P Q U V .160 .015 .014 .560 .385 .385 .062 .045 .234 .090 .540 - .190 .040 .022 .590 .415 .415 .072 .055 .258 .115 .560 .250 .156 .113 - .146 .103 - .30 .24 5 PIN TO-220 Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 6 PACKAGE: 5 PIN TO-263 SEATING PLANE (DATUM A) A C2 H E 1 2 3 4 5 L2 (E) c E L1 D1 5X b 4X e E1 5 PIN TO-263 JEDEC TO-263 (BB) Variation A A1 b c c2 D1 E E1 e H L L1 L2 L3 Dimensions in (mm) MIN .160 0 .020 .015 .045 .270 .380 .245 NOM MAX .067 BSC .575 .070 .625 .110 .066 .070 c .190 .010 .039 .029 .023 .420 (b) 0-8 L3 L WITH PLATING .010 BSC BASE METAL CONTACT AREA 5 PIN TO-263 Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 7 ORDERING INFORMATION Part number Accuracy Output Voltage Package Type SPX2975U5-5.0 .............. .........2% ......................... 5.0V ..................... 5 Lead TO-220 SPX2975T5-5.0 ............... .........2% ......................... 5.0V ..................... 5 Lead TO-263 SPX2975T5-5.0/TR ......... .........2% ......................... 5.0V ..................... 5 Lead TO-263 Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX2975T5-5.0/TR = standard; SPX2975T5-5.0-L/TR = lead free /TR = Tape and Reel Pack quantity is 500 for TO-263. Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 8 |
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