REG1117A

Number of Outputs : 1
Output Type : Adjustable
Maximum Operating Temperature : + 125 C
Mounting Style : SMD/SMT
Input Voltage MAX : 15 V
Package / Case : SOT-223
Output Current : 1 A
Load Regulation : 0.4 %
Output Voltage : 1.25 V to 13.5 V
Dropout Voltage (Max) : 1.1 V at 100 mA


Features:

· FIXED AND ADJUSTABLE VERSIONS
· 2.85V MODEL FOR SCSI-2 ACTIVE TERMINATION
· OUTPUT CURRENT:
    REG1117: 800mA max
    REG1117A: 1A max
· OUTPUT TOLERANCE: ±1% max
· DROPOUT VOLTAGE:
    REG1117: 1.2V max at I_O = 800mA
    REG1117A: 1.3V max at I_O = 1A
· INTERNAL CURRENT LIMIT
· THERMAL OVERLOAD PROTECTION
· SOT-223 AND DDPAK SURFACE-MOUNT PACKAGES


Application

· SCSI-2 ACTIVE TERMINATION
· HAND-HELD DATA COLLECTION DEVICES
· HIGH EFFICIENCY LINEAR REGULATORS
· BATTERY-POWERED INSTRUMENTATION
· BATTERY MANAGEMENT CIRCUITS FOR NOTEBOOK AND PALMTOP PCs
· CORE VOLTAGE SUPPLY: FPGA, PLD, DSP, CPU


Pinout




Specifications

Power Dissipation	Internally Limited
Input Voltage	+15V
Operating Junction Temperature Range	−40 to +125
Storage Temperature Range	−65 to +150
Lead Temperature (soldering, 10s) (2)	+300

(1) Stresses above these ratings may cause permanent damage.
(2) See Soldering Methods section.


Description

The REG1117 is a family of easy-to-use three-terminal voltage regulators. The family of REG1117A includes a variety of fixedand adjustable-voltage versions, two currents (800mA and 1A) and two package types (SOT-223 and DDPAK). See the chart below for available options.

Output voltage of the adjustable versions is set with two external resistors. The REG1117 low dropout voltage allows its use with as little as 1V input-output voltage differential.

Laser trimming assures excellent output voltage accuracy ofREG1117A without adjustment. An NPN output stage allows output stage drive to contribute to the load current for maximum efficiency.

Parameters:

Technical/Catalog Information	REG1117A
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	SOT-223 (3 leads + Tab), SC-73, TO-261AA
Packaging	Tube
Regulator Topology	Positive Adjustable
Current - Output	1A
Voltage - Output	1.25 ~ 13.5 V
Operating Temperature	-40°C ~ 125°C
Voltage - Input	3.8 ~ 15 V
Number of Regulators	1
Current - Limit (Min)	1A
Current Short Circuit (Isc)	-
Drawing Number	296; 4202506; DCY; 4
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	REG1117A REG1117A