STMicroelectronics LDL40
LDL40 - 200 mA low dropout LDO
The LDL40 is a high accuracy voltage regulator designed to be directly connected to a car battery in automotive applications or a generic battery used in industrial applications. Extended input voltage up to 40 V makes the device able to support a load dump transient, which is typical in automotive systems. Ultra-low quiescent current at light load increases the battery operation lifetime in always-on-standby systems.
The device is stabilized with a small ceramic capacitor on the input and output.
An enable logic control function puts the LDL40 in shutdown mode allowing a total current consumption lower than 0.3 µA. Thermal protection is also included.
The device is available in automotive grade in a very small footprint DFN package with wettable flank, allowing the maximum space saving in the PCB (printed circuit board) design and AOI (automated optical inspection).
Features
- AEC-Q100 grade 1 qualified
- Operating temperature range: -40 °C < TJ < 150 °C
- Input voltage from 3.3 V to 40 V
- Dropout voltage (700 mV typ. at 200 mA load)
- Low ground current (2 μA typ. at no load)
- Output voltage: 3.3 V, 5.0 V, or ADJ from 1.2 V to 12 V
- Output voltage tolerance: ±2.5% overtemperature, 0.5% at 25 °C
- 200 mA guaranteed output current
- Power Good for fixed versions
- Logic-controlled electronic shutdown
- Internal current limit
- Thermal shutdown
- Output active discharge function
- DFN6 (2 x 2) WF package
Applications
- EV powertrain
- Always-on battery connected application
- Infotainment and instrument cluster
- ADAS
silica content library/npi/2024/stmicroelectronics-ldl40
STMicroelectronics LDL40 200 mA low dropout LDO | Avnet Silica
