SPX432 Datasheet, PDF (1/9 Pages) Sipex Corporation – Ultra 1.24V Precision Adjustable Shunt Regulator

FEATURES
• 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_REF to 18V
• Low Temperature Coefficient ....................... 50 ppm/°C
• Offered in TO-92, SOIC, SOT-23-3, SOT-23-5
• Improved Replacement in Performance for TLV431
SPX432
Ultra 1.24V Precision Adjustable
Shunt Regulator
APPLICATIONS
• 3.0V to 3.3V Switching Power Supplies
• Adjustable Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors / VCR / TV
• Personal Computers
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%.
PIN CONNECTIONS
8-Pin Surface Mount (S)
CATHODE
ANODE
ANODE
N/C
1
8
2
7
SPX432
3
6
4
5
REF
ANODE
ANODE
N/C
Top View
SOT-23-3 (M)
ANODE
TO-92 (N)
1 23
REF
CATHODE
ANODE
Bottom View
SOT-23-5 (M5)
ANODE
REF
SPX432
SPX432
REF
CATHODE
Top View
N/C N/C CATHODE
Top View
Rev. 11/21/00