SPX1129M3-2.5 Просмотр технического описания (PDF) - Signal Processing Technologies
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SPX1129M3-2.5 Datasheet PDF : 5 Pages
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SPX1129
500mA Low Dropout Voltage Regulator
(PRELIMINARY INFORMATION)
FEATURES
• 1% Output Accuracy 2.5V, 3.3V, 5V, @ 500mA Output
• Very Low Quiescent Current
• 0.4V Dropout Voltage
• Extremely Tight Load and Line Regulation
• Current & Thermal Limiting
• Logic-Controlled Electronic Shutdown
• Reverse Battery Protection
• Output Programmable From 1.24 To 20V
• Equivalent Replacement For LT1129
APPLICATIONS
• Battery Powered Systems
• Cordless Telephones
• Radio Control Systems
• Portable/Palm Top/Notebook Computers
• Portable Consumer Equipment
• Portable Instrumentation
• Bar Code Scanners
• SMPS Post-Regulator
• Voltage Reference
• Automotive Electronics
PRODUCT DESCRIPTION
The SPX1129 is a low power voltage regulator. This device is an excellent choice for use in battery-powered applications such as
cordless telephones, radio control systems, and portable computers. The SPX1129 features very low quiescent current and very low
dropout voltage of 0.4 volts. This includes a tight initial tolerance of ± 1% max, and very low output temperature coefficient, making
the SPX1129 useful as a low-power voltage reference.
The error flag output feature is used as power-on reset for warning of a low output voltage, due to falling voltage input of batteries.
The SPX1129 is offered TO-92, SOT-223, TO-220, TO-252 and TO-263 in 3 & 5 leads.
SOT-223 (M3)
SPX1129
1 23
VIN GND VOUT
Top View
SHDN
V OUT
<0.25V OFF
>2.8V ON
NC ON
TO-263-3 (T)
SPX1129
1 23
VOUT GND VIN
Top View
PIN CONNECTIONS
TO-263-5 (T)
TO-220-3 (U)
SPX1129
12 34 5
1) OUTPUT
2) SENSE/ ADJ
3) GND
4) SHDN
4) VIN
SPX1129
1 23
Top View
VOUT GND VIN
Front View
TO-252 (R)
3
2
1
Front View
VIN
GND
VOUT
VIN
TO-92 (N)
1 23
GND
Bottom View
VOUT
Rev. 10/25/00
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