LDL40PUR LDO Linear Regulator with 200 mA Output Current, 3.3 V to 40 V Input, and AEC-Q100 Grade 1 Qualification
Specifications
Manufacturer:
STMicroelectronics
Product Number:
LDL40PUR
Description:
200 MA LOW DROPOUT LDO
Introduction
LDL40PUR High-Voltage LDO Linear Regulator
The LDL40PUR is widely used in automotive, battery-powered and industrial low-power supply scenarios.
Product Overview
The LDL40PUR is an AEC‑Q100 Grade 1 qualified high‑voltage, ultra‑low quiescent current LDO linear regulator from STMicroelectronics, housed in a compact 2 * 2 mm DFN‑6 package. It operates from 3.3 V to 40 V input, delivering up to 200 mA output current with a typical dropout voltage of 700 mV @ 200 mA. The adjustable output voltage ranges from 1.2 V to 12 V with ±2.5% total tolerance over temperature. It features 2 μA no‑load ground current, < 0.3 μA shutdown current, thermal protection, and enable control, making it ideal for battery‑powered and automotive systems.
Key Features
- Wide Input Voltage: 3.3 V to 40 V (supports automotive load dump)
- Adjustable Output: 1.2 V to 12 V; fixed 3.3 V/5.0 V options available
- Low Dropout: 700 mV @ 200 mA (typical)
- Ultra‑Low Iq: 2 μA (no load); <0.3 μA (shutdown)
- High Accuracy: ±2.5% over temperature, 0.5% at 25 °C
- Protection: Thermal shutdown, current limit, enable pin
- Package: 2*2 mm DFN‑6 (wettable flanks for AOI)
- Automotive Qualified: AEC‑Q100 Grade 1 (‑40 °C to 150 °C)
Applications
- Automotive electronics (ECUs, sensors, infotainment)
- Battery‑powered and always‑on standby systems
- Industrial sensors and control modules
- Low‑power MCU/DSP supply rails
- High‑voltage to low‑voltage point‑of‑load (POL) conversion
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