STMicroelectronics Voltage Regulator DFN 6-Pin 1.8V-5.5V Input 155μA Quiescent Current LD56100DPU30R

STMicroelectronics LD56100DPU30R is a high-performance voltage regulator designed for efficient power management in industrial, automotive, telecommunications, and consumer electronics applications. It operates over a wide input voltage range from 1.8 V to 5.5 V, delivering a low dropout voltage of typically 120 mV at a 1 A load, which ensures stable and efficient power output.

The device features very low quiescent current, typically 155 μA, enabling reduced power consumption in battery-powered and energy-sensitive applications. It also has an output voltage tolerance of ±1% across temperatures from -40 °C to +85 °C, ensuring accurate voltage regulation under varying environmental conditions.

Noise performance is excellent with ultra-low 13 μV RMS noise measured from 10 Hz to 100 kHz at 3.0 V output voltage, contributing to signal integrity in sensitive circuits. The high power supply rejection ratio (PSRR) of 70 dB at 1 kHz further improves noise filtering and system reliability.

The device is housed in a compact 6-pin DFN package measuring 1.6 mm length, 1.2 mm width, and 450 μm height, optimized for space-constrained applications and surface mounting on PCBs. It supports logic-controlled electronic shutdown and internal soft-start features to protect the circuitry during power transitions.

Additional safety features include internal current limit foldback and thermal protections to prevent damage under fault conditions.

Operating temperature range from -40 °C up to 125 °C makes this voltage regulator suitable for demanding industrial and automotive environments. Available output voltages on request range from 1.0 V to 5.0 V in 50 mV increments, allowing design flexibility.

This product is made in China and supplied in compliance with current industry standards. It is ideal for use in electronic equipment requiring robust and precise voltage regulation with low noise and power efficiency.

Explore more power management ICs and Voltage Regulators in the Electronics & Electricals category at EnvMart. Input voltage range: 1.8 to 5.5 V. Ultra-low dropout voltage: 120 mV at 1 A. Very low quiescent current: 155 μA typical.

Output voltage tolerance: ±1% (-40 °C to +85 °C). Ultra-low noise: 13 μV RMS (10 Hz - 100 kHz). High PSRR: 70 dB @ 1 kHz. DFN 6-pin package, 1.6 mm × 1.2 mm × 0.45 mm. Operating temperature: -40 °C to 125 °C. Logic-controlled shutdown and soft-start.

Internal current limit and thermal protection.