STMicroelectronics LD49100 Automotive Regulators

STMicroelectronics LD49100 Automotive Regulators provide 1A maximum current with an input voltage range from 1.5V to 5.5V and a typical dropout voltage of 200mV. The LD49100 has ceramic capacitors on the input and output, offering stability. The LD49100 Automotive Regulators feature ultra low-dropout voltage, low quiescent current, and low-noise, making it ideal for a wide range of automotive applications.

Additionally, the STM LD49100 Automotive Regulators have a low frequency, 70dB power supply rejection, and starts to roll off at 10kHz. Enable logic control function establishes the LD49100 in shutdown mode, allowing a total current consumption lower than 1μA. Protection functions include short-circuit constant current limiting and thermal protection.

The LD49100 is available in an AEC-Q100 grade 1 qualified, small 6-pin DFN6 (3mm x 3mm) package with a wettable flank.

Features

AEC-Q100 qualified
-40°C to 125°C Temperature range
Input voltage from 1.5V to 5.5V
Ultra low-dropout voltage (200mV typ. at 1A load)
Very low quiescent current (20µA typ. at no load, 200µA typ. at 1A load, 1µA max. in off mode)
Very low-noise with no bypass capacitor (30µV_RMS at V_OUT = 0.8V)
±2.0% at 25°C Output voltage tolerance

1A guaranteed output current
0.8V to 4.5V with 100mV step and adjustable from 0.8V
Wide range of output voltages available on request
Logic-controlled electronic shutdown
Power Good function
Stable with ceramic capacitors C_OUT = 1µF
Internal current and thermal limit
DFN6 (3mm x 3mm) package with wettable flanks

Applications

Infotainment and cluster
ADAS

Telematics
Body electronics

Schematic Diagram

Schematic - STMicroelectronics LD49100 Automotive Regulators

Content Stream

STMicroelectronics LD49100 Automotive Regulators

Explore Content

Automotive Components