LD1117D50TR [STMicroelectronics]

LD1117D50TR                                Description

The LD1117 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version (VREF = 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V and 5.0 V. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 μF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance.

LD1117D50TR                                FEATURES

Ultralow Quiescent Current:3uA Input Voltage Range:1.6V to20V Output Current:20mA Dropout Voltage:280mV

Adjustable Output(VADJ=VOUT(MIN)=600mV) Fixed Output Voltages:1.2V1.5V1.8V2.5V

3.3V5V

Outout Tolerance:+2% Over LoadLine and Temperature Stable with Low ESRCeramic Output Capacitors(1μF minimum)

Shutdown Current:<1uA Current Limit Protection Reverse-Battery Protection Thermal Limit Protection

8-Lead SC70and 2mm x2mm DFN Packages

LD1117D50TR                                APPLICATIONS

Low Current Battery-Powered Systems

Keep-Alive Power Supplies

Remote Monitoring

Utility Meters

Hotel Door Locks