SPX1121 データシートの表示（PDF） - Signal Processing Technologies
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SPX1121 Datasheet PDF : 6 Pages
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SPX1121
150mA Low Dropout Voltage Regulator
FEATURES
• 1% Output Accuracy @ 2.5V, 3.3V, 5V, @ 150mA Output
• Very Low Quiescent Current
• 0.4V Dropout Voltage @ 150mA
• Extremely Tight Load And Line Regulation
• Current & Thermal Limiting
• Logic-Controlled Electronic Shutdown
• Reverse Battery Protection
• Output Programmable From 1.24 To 29V
• Equivalent Replacement For LT1121
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 SPX1121 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 SPX1121 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 SPX1121 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 SPX1121 is offered SO-8, TO-92 & SOT-223.
8-Pin Surface Mount (S)
PIN CONNECTIONS
TO-92 (N)
VOUT
SENSE/ ADJ
GND
ERROR
1
8
2
7
SPX1121
3
6
4
5
Top View
VIN
GND
GND
SHDN
1 23
VIN
GND
Bottom View
VOUT
SHDN
<0.25V
>2.8V
NC
VOUT
OFF
ON
ON
SOT-223 (M3)
SPX1121
1 23
VIN GND VOUT
Top View
Rev.10/24/00
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