STMicroelectronics LDL1117
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 mV @ 1.2 A. The high power supply rejection ratio of 87 dB at 120 Hz, rolling down to more than 40 dB at 100 kHz, 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.| Part No. | LDL1117 |
|---|---|
| Datasheet | LDL1117 Download |
| Manufacturer |  STMicroelectronics |
| Description | 1.2A high PSRR low-dropout linear voltage regulator |
| Buy | Stock & Price |
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 mV @ 1.2 A
● Internal thermal, current and power limitation
● High PSRR 87 dB @ 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
DS12022 - Rev 7 - January 2021 For further information contact your local STMicroelectronics sales office. 1 Diagram Figure 1. Block diagram LDL1117 Diagram DS12022 - Rev 7 page 2/23 2 Pin configuration Figure 2. Pin connection (top view) LDL1117 Pin configuration Note: Pin name GND VOUT VIN The tab is connected to VOUT. Table 1. Pin description Pin number 1 2 3DESCRIPTION
Ground Output voltage Input voltage DS12022 - Rev 7 page 3/23 3 Typical application Figure 3. Typical application diagram LDL1117 LDL1117 Typical application DS12022 - Rev 7 page 4/23 4 Note: LDL1117 Maximum ratings Maximum ratings Table 2.
