TX1117 is a series of low dropout three-terminal regulators with a dropout of 1.3V at 1A load current. TX1117 features a very low standby current 2mA compared to 5mA of competitor.

    Other than a fixed version, Vout = 1.2V, 1.8V, 2.5V, 3.3V, 5V, and 12V, TX1117 has an adjustable version, which can provide an output voltage from 1.25 to 12V with only two external resistors.

    TX1117 offers thermal shut down and current limit functions, to assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within 2%. Other output voltage accuracy can be customized on demand, such as 1%.

    TX1117 is available in SOT-223, TO-252 power package. 

TX1117 Features:

Maximum output current is 1A

Range of operation input voltage: Max 12V

Line regulation: 0.1%/V (typ.)

Standby current: 2mA (typ.)

Load regulation: 10mV (typ.)

Environment Temperature: -20℃~85℃

TX1117 Applications:

Power Management for Computer Mother Board, Graphic Card

LCD Monitor and LCD TV

DVD Decode Board

ADSL Modem

Post Regulators For Switching Supplies

TX1117 Selection Table:

Marking	Part No. Output	Voltage	Package
1117 B XXYYZZ	XX=12	1.2V	SOT-223 TO-252
	XX=18	1.8V
	XX=25	2.5V
	XX=33	3.3V
	XX=50	5.0V
	XX=120	12.0V
	XX=AD	Adjustable

TX1117 Order Information:

Marking	Designator	Description
1117 B XXYYZZ	1117	Product code
	B	Fab Code
	XX	Output Voltage(1.2~12.0V)
	YY	LOT NO.
	ZZ	DATA CODE

Note:”XX” stands for output voltages. Other voltages can be specially customized

TX1117 Block Diagram: