LD1117 Datasheet, PDF (1/10 Pages) STMicroelectronics – LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

Product specification
LD1117
Description
The LD1117 is a series of low dropout voltage
regulators which can provide up to 1A of output
current. The LD1117 is available in six fixed
voltage, 1.2, 1.5, 1.8, 2.5, 3.3 and 5.0V.
Additionally it is also available in adjustable
version. On chip precision trimming adjusts the
reference/ output voltage to within ± 2%. On-chip
thermal limiting provides protection against any
combination of overload and ambient
temperatures that would create excessive
junction temperatures.
The LD1117 series is available in SOT-223,
TO-252 packages. A minimum of 10uF tantalum
capacitor is required at the output to improve the
transient response and stability.
FEATURES
‹ Low Dropout Voltage.
‹ Load regulation:0.5% Max.
‹ Optimized for Low Voltage
‹ On-chip thermal limiting.
‹ Maximum Input Voltage : 20V
‹ Adjustable Output Voltage or Fixed 1.2V,
1.5V, 1.8V, 2.5V, 3.3V, 5V
‹ Standard SOT-223,TO-252 Packages
Applications
‹ Post Regulator for switching DC/DC
Converter
‹ High Efficiency Linear Regulator
‹ Battery Chargers
‹ PC Add on Card
‹ Motherboard clock supplies
‹ LCD Monitor r
‹ Set-top Box
Functional Diagram
http://www.twtysemi.com
[e-mail]
4008-318-123
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