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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
VthL = 0.4V VRO Td
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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