lM1117

Features:

Availablein 1.8V,2.5V,2.85V,3.3V,5V,and Adjustable Versions
Space Saving SOT-223 and LLP Packages
Current Limiting and Thermal Protection
Output Current 800mA
Line Regulation 0.2%(Max)
Load Regulation 0.4%(Max)
Temperature Range
--LM1117 0Cto125
--LM1117I-40Cto125

Application

2.85V Model for SCSI-2 Active Termination
Post Regulator for Switching DC/DC Converter
High Efficiency Linear Regulators
Battery Charger
Battery Powered Instrumentation




Pinout






Specifications

Output Current	800 mA
Output Min	1.8, 1.25, 3.3, 5, 2.5 Volt
Input Min Voltage	2.65, 2.6 Volt
Input Max Voltage	15 Volt
Dropout Voltage	1.2 Volt
Adjustable Output	Yes, No
Quiescent Current	5 mA
On/Off Pin	No
Error Flag	No
RegType	LDO
Temperature Min	0 deg C
Temperature Max	125 deg C
Output Voltage	1.8, 3.3, Undefined, 5, 2.5 Volt
Output Max	1.8, 13.8, 3.3, 5, 2.5 Volt
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Description

The lM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor's industry standard LM317.

The lM1117 is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.

The lM1117 offers current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap reference to assure output voltage accuracy to within ±1%.

The lM1117 series is available in LLP, TO-263, SOT-223, TO-220, and TO-252 D-PAK packages. A minimum of 10F tantalum capacitor is required at the output to improve the transient response and stability.

The lM1117 is a low power positive-voltage regulator designed to meet 1A output current and comply with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers.
The lM1117 features very low quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases. lM1117 is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V, 2.85, 3.3V, and 5.0V output voltages.
The lM1117 is offered in a 3-pin surface mount package SOT-223, TO-252 & SOT-89. The output capacitor of 10uF or larger is needed for output stability of lM1117 as required by most of the other regulator circuits.

LM1117 SOT223 TO252_3LD SOT89_3LD