SPX432AM SIPEX [Sipex Corporation], SPX432AM Datasheet

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SPX432AM

Manufacturer Part Number
SPX432AM
Description
Ultra 1.24V Precision Adjustable Shunt Regulator
Manufacturer
SIPEX [Sipex Corporation]
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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SPX432AM Summary of contents

Page 1

FEATURES • Low Voltage Operation ........................................ 1.24V • Trimmed Bandgap to ...................................0.5%/ 1% • Wide Operating Current ................... 1mA to 100mA • Extended Temperature Range ...............0° ° ° ° 105° ° ° ° C • Adjustable Output Voltage...........................V ...

Page 2

ABSOLUTE MAXIMUM RATINGS Parameter Cathode-Anode Reverse Breakdown Anode-Cathode Forward Current Operating Cathode Current Reference Input Current Continuous Power at 25°C TO-92 8L SOIC SOT-23 Junction Temperature Storage Temperature Lead Temperature (Soldering 10 sec.) Stresses greater than those listed under ABSOLUTE ...

Page 3

ELECTRICAL CHARACTERISTICS temperature must be derated based upon power dissipation and package thermal characteristics. Unless otherwise specified, test conditions are and I = 10mA. KA REF K Parameter Symbol Output Voltage V REF Line Regulation V REF ...

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 ...

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 ...

Page 6

PACKAGE DRAWING SOT-23-3L (M) 0.015 - 0.018 (0.381 - 0.457) 0.020 - 0.024 (0.508 - 0.610) 0.110 - 0.120 (2.794 - 3.048) 0.001 - 0.004 (0.025 - 0.102) 0.047 - 0.055 0.083 - 0.098 (1.194 - 1.397) (2.108 - 2.489) ...

Page 7

PACKAGE DRAWING TO-92 (N) 0.090 (2.286) Radius typ. 0.185 (4.699) 0.175 (4.445) Seating Plane 0.016 (0.406) 0.014 (0.356) 0.055 (1.397) 0.045 (1.143 0.055 (1.397) 0.045 (1.143) 10° typ. BOTTOM VIEW 0.085 (2.159) Diameter 0.185 (4.699) 0.045 (1.143) ...

Page 8

PACKAGE DRAWING SOT-23-5L (M5 MILLIMETERS MIN. MAX A 0. 0.80 REF B 0.30 C 0.10 D 2.70 E 1.40 e 0.95 BSC. e1 1.70 H 2.50 L MIN 0 PLACES ...

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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