SPX431 Datasheet, PDF (1/8 Pages) Sipex Corporation – Precision Adjustable Shunt Regulator

SPX431
Precision Adjustable Shunt Regulator
FEATURES
• Trimmed Bandgap to 0.5%
• Wide Operating Current..........................1mA to 150mA
• Extended Temperature Range....................0°C to 105°C
• Low Temperature Coefficient ............................30 ppm/°C
• Offered in TO-92, SOIC, SOT-89, SOT-23-5
• Improved Replacement in Performance for TL431
• Low Cost Solution
APPLICATIONS
• Battery Operating Equipments
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors / VCR / TV
• Personal Computers
PRODUCT DESCRIPTION
The SPX431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 0.5% bandgap reference. SPX431 acts as an
open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431 thermal stability, wide operating current
(150mA) and temperature range (0°C to 105°C) makes it suitable for all variety of application that are looking for a low cost solution
with high performance. SPX431 tolerance of 0.5% is proven to be sufficient to overcome all of the 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 output voltage may be adjusted to any value between V_REF and 36 volts with two external resistors. The SPX431 is operating an
extended temperature range of 0°C to 105°C. The SPX431 is available in TO-92, SO-8, SOT-89, and SOT-23-5 packages.
PIN CONFIGURATIONS
8-Pin Surface Mount (S)
CATHODE
ANODE
ANODE
N/C
1
8
2
7
SPX431
3
6
4
5
Top View
REF
ANODE
ANODE
N/C
SOT-23-5 (M5)
REF ANODE
5
4
SPX431
123
N/C N/C CATHODE
Top View
SOT-89 (M1)
SPX431
1 23
REF
CATHODE
ANODE
Top View
TO-92 (N)
1 23
REF
ANODE
Bottom View
CATHODE
Rev. 10/30/00