ST LDL1117S50R

正18V1.2A

Overview

STMicroelectronics LDL1117S50R Low-Dropout Linear Voltage Regulators features 1.2A of maximum current with an input voltage range from 2.5V to 18V. The LDL1117S50R have a typical dropout voltage of [email protected]. The high power supply rejection ratio of 87dB at 120Hz, rolling down to more than 40dB at 100kHz, makes the LDL1117S50R suitable for direct regulation in SMPS and secondary linear regulation in DC-DC converters. This device includes current limit, SOA and thermal protections.

Features

• 20 V AMR

• Package SOT223

• High PSRR 87 dB @ 120 Hz

• Input voltage from 2.5 V to 18 V

• Guaranteed output current 1.2 A

• Typical dropout 350 mV @ 1.2 A

• Internal thermal, current and power limitation

• Operating temperature range: -40 °C to 125°C

• Available on fixed output voltages: 1.2 V (1.185 V), 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5.0 V (other options are available on request)

Applications

• SMPS

• Consumer

• Industrial

• Motherboard P.O.L.

• DC-DC post-regulation