SPX432 Sipexoration, SPX432 Datasheet

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SPX432

Manufacturer Part Number
SPX432
Description
Ultra 1.24V Precision Adjustable Shunt Regulator
Manufacturer
Sipexoration
Datasheet

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FEATURES
PRODUCT DESCRIPTION
The SPX432 is a 3-terminal Adjustable Shunt Voltage Regulator providing a highly accurate 1.24V bandgap reference with 0.5%
tolerance. The SPX432 thermal stability, wide operating current (80mA) and temperature range (0°C to 105°C) makes it suitable for
abroad range of applications. SPX432 tolerance of 0.5% is proven to be sufficient to overcome other errors in the system to
virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a significant cost
savings.
The SPX432 is an ideal voltage reference in an isolated feedback circuit for 3.0V to 3.3V switching mode power supplies. SPX432
offers many advantages over TLV431, such as, wider output voltage up to 18V vs. 6V, output current of 80mA vs. 15mA, and a wider
temperature range with tighter tolerance down to 0.5%.
Low Voltage Operation ........................................ 1.24V
Trimmed Bandgap to ...................................0.5%/ 1%
Wide Operating Current ................... 1mA to 100mA
Extended Temperature Range ...............0° ° ° ° C to 105° ° ° ° C
Adjustable Output Voltage...........................V
Low Temperature Coefficient ....................... 50 ppm/°C
Offered in TO-92, SOIC, SOT-23-3, SOT-23-5
Improved Replacement in Performance for TLV431
CATHODE
ANODE
ANODE
N/C
8-Pin Surface Mount (S)
SOT-23-3 (M)
REF
1
2
3
4
Top View
Top View
SPX432
ANODE
SPX432
REF
to 18V
PIN CONNECTIONS
CATHODE
8
7
6
5
ANODE
ANODE
REF
N/C
REF
ANODE
SOT-23-5 (M5)
N/C
Bottom View
1
TO-92 (N)
Ultra 1.24V Precision Adjustable
Top View
SPX432
ANODE
N/C CATHODE
2
APPLICATIONS
REF
3
3.0V to 3.3V Switching Power Supplies
Adjustable Supplies
Error Amplifiers
Single Supply Amplifier
Monitors / VCR / TV
Personal Computers
CATHODE
Shunt Regulator
SPX432
Rev. 11/21/00

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SPX432 Summary of contents

Page 1

... The SPX432 thermal stability, wide operating current (80mA) and temperature range (0°C to 105°C) makes it suitable for abroad range of applications. SPX432 tolerance of 0.5% is proven to be sufficient to overcome other errors in the system to virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a significant cost savings ...

Page 2

... T 150 +150 STG TL 300 θ θ θ θ θ θ θ θ 160 °C/W 80 °C/W 175 °C/W 45 °C/W 575°C/W 150°C/W SPX432 Units °C °C °C Typical Derating 6.3 mW/°C 5.7 mW/°C 1.7mW/°C Rev. 11/21/00 ...

Page 3

... TC in mV/°C = ∆ ∆V REF V at 25°C REF TC in %/°C = ∆ ∆V REF V at 25°C REF TC in ppm/°C = ∆ Figure 1c. Test Circuit 3 SPX432 Typ Max Unit 1.240 1.2524 µA 0.3 0.6 µA 0 0.04 500 ...

Page 4

... TYPICAL APPLICATIONS 0.1µF *If the output voltage has noise, then please add a 0.1µF in between drain and gate of power MOSFET to reduce the noise. +3.3V 0.1µF PHD 3055E +12V 500Ω 140Ω 0.1µF AS432 120Ω 470µF 2.7V 0.1µF INTEL I 740 SPX432 1000µF Rev. 11/21/00 ...

Page 5

... PACKAGE DRAWING SOIC-8 (S) Pin 1 0.56 (0.022) 0.49 (0.019) 0.45 (0.018) 0.35 (0.014) 4.0 (0.158) 3.8 (0.150) 1.27 (0.50) BSC 1.75 (0.069) 1.35 (0.053) 0.78 (0.031) 0.61 (0.024) 5.0 (0.197) 4.8 (0.188) 0.20 (0.008) 0.10 (0.004) 5.2 (0.205) 6.2 (0.244) 4.6 (0.181) 5.8 (0.228) 0.77 (0.030) 0.64 (0.025) 45 ° 0.37 (0.015) 7 ° (4 PLCS) BSC 3 ° -6° 0.22 (0.009) 7 ° (4 PLCS) 0.19 (0.007) SPX432 Rev. 11/21/00 ...

Page 6

... SPX432 0.018 - 0.024 (0.457 - 0.610) Rev. 11/21/00 ...

Page 7

... BOTTOM VIEW 0.085 (2.159) Diameter 0.185 (4.699) 0.045 (1.143) 0.090 (2.286) typ. 0.025 (0.635) Max Uncontrolled Lead Diameter 0.500 (12.70) Min. 0.105 (2.667) 0.095 (2.413) 0.145 (3.683) 0.135 (3.429) 5° typ. 5° typ. 0.0155 (0.3937) 0.0145 (0.3683) SPX432 Rev. 11/21/00 ...

Page 8

... INCHES MIN. MAX. 1.30 .035 .051 0.10 0 .004 .0315 REF 0.50 .012 .019 0.35 .004 .0137 3.10 .106 .122 1.80 .055 .071 .037 BSC. 2.10 .066 .082 3.00 .098 .118 MIN .0078 A1 L NOTE: 1. REFER TO APPLICABLE 2. CONTROLLING DIMENTION : MILLIMETER 3. PACKAGE SURFACE FINISHING TO BE SMOOTH FINISH. SPX432 A2 C Rev. 11/21/00 ...

Page 9

... Ordering No. SPX432M SPX432AM SPX432M5 SPX432AM5 SPX432S SPX432AS SPX432N SPX432AN Corporation SIGNAL PROCESSING EXCELLENCE Sipex Corporation Headquarters and Main Offices: 22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex.com 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 935-7600 FAX: (408) 934-7500 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 hereing ...

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