STMicroelectronics

LD56100DPU18R

LD56100DPU18R Description

The LD56100DPU18R from STMicroelectronics is a high-performance, fixed-output linear voltage regulator designed to deliver a stable 1.8V output at up to 1A of continuous current. With a wide input voltage range of up to 5.5V, this regulator is optimized for low-dropout operation, featuring a maximum dropout voltage of 0.285V @ 1A, ensuring efficient power conversion even under high load conditions. Packaged in an 8-pin DFN format and available in Tape & Reel (TR), it is ideal for space-constrained, high-density PCB designs. The device complies with ROHS3 and REACH environmental standards, making it suitable for modern eco-conscious applications.

LD56100DPU18R Features

• High Efficiency: Low dropout voltage (0.285V @ 1A) minimizes power dissipation, enhancing thermal performance.
• Low Quiescent Current: 155 µA typical Iq extends battery life in portable applications.
• Robust Protection: Integrated safeguards include over-current, over-temperature, and short-circuit protection, ensuring reliable operation under fault conditions.
• Excellent Noise Rejection: PSRR of 70dB to 55dB (1kHz–100kHz) makes it ideal for noise-sensitive analog and digital circuits.
• Enable Control: Features an enable pin for power management, allowing dynamic shutdown to reduce standby power consumption.
• Compact & Reliable: MSL 1 (Unlimited) moisture sensitivity ensures long shelf life and ease of handling.

LD56100DPU18R Applications

• Portable Electronics: Smartphones, tablets, and wearables benefit from its low Iq and compact footprint.
• IoT Devices: Ideal for sensors and wireless modules requiring stable, low-noise power.
• Embedded Systems: Suitable for microcontrollers, FPGAs, and memory circuits needing precise 1.8V rails.
• Industrial Controls: Robust protection features make it reliable for harsh environments.
• Automotive Accessories: Compliant with ECCN EAR99, suitable for non-critical automotive subsystems.

Conclusion of LD56100DPU18R

The LD56100DPU18R stands out as a versatile, high-efficiency linear regulator, combining low dropout, excellent PSRR, and robust protection in a compact package. Its 1A output capability, enable control, and ultra-low Iq make it a superior choice for power-sensitive and space-constrained designs. Whether for consumer electronics, IoT, or industrial systems, this regulator delivers reliable performance with minimal external components, reducing both design complexity and BOM cost.