LM1117MPX-3.3/NOPB Texas Instruments 低压差稳压器 800MA LDO LINEAR REG

1 Features 3 Description

1 The LM1117 is a low dropout voltage regulator with a • Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and

dropout of 1.2 V at 800 mA of load current. Adjustable Versions

• Space-Saving SOT-223 and WSON Packages The LM1117 is available in an adjustable version,

which can set the output voltage from 1.25 to 13.8 V • Current Limiting and Thermal Protection with only two external resistors. In addition, it is

• Output Current 800 mA available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V,

• Line Regulation 0.2% (Maximum) and 5 V.

• Load Regulation 0.4% (Maximum) The LM1117 offers current limiting and thermal

• Temperature Range shutdown. Its circuit includes a Zener trimmed

bandgap reference to assure output voltage accuracy – LM1117: 0°C to 125°C

to within ±1%.

– LM1117I: −40°C to 125°C

A minimum of 10-μF tantalum capacitor is required at

2 Applications the output to improve the transient response and

stability.

• Post Regulator for Switching DC–DC Converter

Device Information(1) • High Efficiency Linear Regulators

• Battery Chargers PART NUMBER PACKAGE BODY SIZE (NOM)

• Portable Instrumentation SOT-223 (4) 6.50 mm × 3.50 mm

TO-220 (3) 14.986 mm × 10.16 mm • Active SCSI Termination Regulator