SPX2975 ® 400mA Low Dropout Voltage Regulator FEATURES ■ 5V Fixed Output ■ High Accuracy ■ Very Low Current Consumption: 70µA ■ 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 SPX2975 SPX2975 5 Pin TO-263 5 Pin TO-220 1 2 3 4 5 RD VOUT GND I RD VOUT GND RO I APPLICATIONS ■ Automotive Electronics ■ Wireless Station ■ Industrial Systems RO 1 2 3 4 5 Now Available in Lead Free Packaging 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 VOUT I C11 1000µF IOUT 5 1 CQ 22µF C12 100nF 5kΩ VIN RD IRD,d VRD Date: 6/30/04 IRD,c 4 2 RO 3 VOUT REXT SPX2975 GND IRO VRD IGND CD 47nF SPX2975 400mA Low Dropout Voltage Regulator 1 © Copyright 2004 Sipex Corporation ABSOLUTE MAXIMUM RATINGS 5 Pin TO-220 TJA...............................................................................................27.8ºC/W TJC.................................................................................................79ºC/W 5 Pin T0 263 TJA...............................................................................................57.2ºC/W TJC................................................................................................7.6ºC/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. 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 .................................................. -50°C to +150°C Junction Temperature.(Note 1) ................................... -40°C to +150°C ELECTRICAL CHARACTERISTICS VIN = 13.5V; -40°C < Tj < 150°C. Unless otherwise specified. PARAMETER MIN TYP MAX UNITS CONDITIONS Input Voltage 5.5 42 V Junction Temperature -40 150 C Output Voltage 4.9 5.0 5.1 V 5mA < IQ < 400mA 6V < VI < 28V Output Voltage 4.9 5.0 5.1 V 5mA < IQ < 200mA 6V < VI < 40V Output Current limitation (note 1) 450 700 µA V Output Leakage Current 0.1 100 Current Consumption 70 200 µA Current Consumption 7 10 mA IOUT = 250mA Current Consumption 17 22 mA IOUT = 400mA Dropout Voltage 350 500 mV IOUT = 300mA VDO = VOUT - VIN 5 30 mV IOUT = 5mA to 400mA 2 15 mV VIN = 8V to 32V IOUT = 5mA fr = 100Hz; Vr = 0.5Vpp (note 2) Load Regulation Line Regulation -15 PSRR 60 dB Temperature Output Voltage Drift 0.2 mV/K Reset Switching Threshold 4.5 Reset Output Low Voltage Reset Output Leakage Current IOUT = 1mA 4.65 4.8 V 0.2 0.4 V VTH Rext ≥ 5kΩ ; VOUT > 1 V 0 10 µA VROH = 5V Reset Charging Current 3.0 5.5 9.0 µA VRD = 1V Upper Timing Threshold 1.5 1.8 2.2 V VthH Lower Timing Threshold 0.2 0.4 0.7 V VthL Reset Delay Time 10 16 22 mS CO = 47nF, Td 0.5 2.0 µs CO = 47nF, Trv Reset Reaction Time Note 1: Specifications in the -40°C to 150°C 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 2 © Copyright 2004 Sipex Corporation FUNCTIONAL DIAGRAM Temperature Sensor Saturation Control & Protection Circuit Current Limit VIN 1 5 VOUT Buffer Bandgap Reference RD 4 Reset Generator 2 RO 3 GND PIN DESCRIPTION PIN NUMBER PIN NAME 1 VIN LDO Input. Bypass VIN to GND with a Ceramic capacitor. 2 RO Reset Output. RO remains low while VOUT is below the reset switching threshold. RO is in open conector output. 3 GND 4 RD 5 VOUT DESCRIPTION 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 22µF capacitor with ESR less than 5Ω at 10kHz. Vth = 4.65V VOUT <Trr VthH = 1.8V VRD VthL = 0.4V Trr VRO VROL = 0.2V Td Reset Timing Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator 3 © Copyright 2004 Sipex Corporation TPYICAL PERFORMANCE CHARACTERISTICS Output Current IQ Vs Temperature Tj Dropout Voltage Vdr Vs Output Current IQ 1200 800 Dropout Voltage Vdr (mV) 700 600 IQ (mA) 500 400 300 200 100 1000 125C 25C 800 600 400 200 0 0 -40 -20 0 20 40 60 80 100 120 140 160 0 100 Tj (DegC) 200 300 400 500 600 Output Current IQ Current Consumption Iq vs Output Current IQ Current Consumption Iq vs Output Current IQ 3 60 50 40 Iq (mA) Iq (mA) 2 30 20 1 10 0 0 0 20 40 60 80 100 0 120 Date: 6/30/04 100 200 300 400 500 600 Output Current IQ (mA) Output Current IQ (mA) SPX2975 400mA Low Dropout Voltage Regulator 4 © Copyright 2004 Sipex Corporation TPYICAL PERFORMANCE CHARACTERISTICS Reset Threshold vs Temperature Load Regulation vs Temperature 4.8 0.030 4.75 Reset Threshold (V) Load Regulation (V) 0.025 0.020 0.015 0.010 4.65 4.6 4.55 0.005 0.000 -40 4.7 4.5 10 60 110 160 -40 10 Temperature (°C) 110 160 Reset Delay vs Temperature Vout vs Temperature 0.022 5.20 5.15 Reset Delay Time (sec) 0.020 5.10 Vout @ 42V (V) 60 Temperature (°C) 5.05 5.00 4.95 4.90 0.018 0.016 0.014 0.012 4.85 4.80 -40 0.010 10 60 110 -40 160 Date: 6/30/04 10 60 110 160 Temperature (°C) Temperature (°C) SPX2975 400mA Low Dropout Voltage Regulator 5 © Copyright 2004 Sipex Corporation PACKAGE: 5 PIN TO-220 E A B E/2 SEATING PLANE A øP Q F H1 D D1 D L1 D C C CHAMFER OPTIONAL D L A b e C1 e1 J1 5 PIN TO-220 Dimensions in (inches) MIN NOM MAX A .160 - .190 b .015 - .040 C1 .014 - .022 D .560 - .590 E e .385 - .415 .385 - .415 e1 .062 - .072 F H1 .045 - .055 .234 - .258 J1 L .090 - .115 .540 - .560 L1 - .250 ∆P .146 - .156 Q .103 - .113 U - .30 - V - .24 - Date: 6/30/04 5 PIN TO-220 SPX2975 400mA Low Dropout Voltage Regulator 6 © Copyright 2004 Sipex Corporation PACKAGE: 5 PIN TO-263 SEATING PLANE A (DATUM A) C2 H E 1 2 3 5 4 c L2 (E) E L1 D1 5X b E1 4X e 5 PIN TO-263 JEDEC TO-263 (BB) Variation Dimensions in (mm) MIN NOM MAX A .160 - .190 A1 0 - .010 b .020 - .039 c .015 - .029 c2 .045 - D1 .270 - - E .380 - .420 E1 .245 - - e L3 .575 - .625 L .070 - .110 - .066 - .070 L1 - L2 - L (b) .067 BSC H L3 0º-8º .023 WITH PLATING c .010 BSC BASE METAL CONTACT AREA 5 PIN TO-263 Date: 6/30/04 SPX2975 400mA Low Dropout Voltage Regulator 7 © Copyright 2004 Sipex Corporation 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 8 © Copyright 2004 Sipex Corporation