LDL1117 Datasheet | STMicroelectronics

1.2 A high PSRR low-dropout linear voltage regulator SOT223 Maturity status link LDL1117 Features - Input voltage from 2.5 V to 18 V - 20 V AMR - 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) - Guaranteed output current 1.2 A - Typical dropout 350 m V @ 1.2 A - Internal thermal, current and power limitation - High PSRR 87 d B @ 120 Hz - Operating temperature range: -40 °C to 125°C - Package SOT223 Applications - Consumer - Industrial - SMPS - Motherboard P.O.L. - DC-DC post-regulation Description The LDL1117 provides 1.2 A of maximum current with an input voltage range from 2.5 V to 18 V, and a typical dropout voltage of 350 m V @ 1.2 A. The high power supply rejection ratio of 87 d B at 120 Hz, rolling down to more than 40 d B at 100 k Hz, makes the LDL1117 suitable for direct regulations in SMPS and secondary linear regulations in DC-DC converters. This device includes current limit, SOA and thermal protections. DS12022 - Rev 7 - January 2021 For further information contact your local STMicroelectronics sales office. .st. Diagram Figure 1. Block diagram Diagram DS12022...