**LT3062IDCB#TRMPBF: A Comprehensive Technical Overview of Analog Devices' 200mA Low Noise LDO Voltage Regulator**

In the realm of precision power management, low-dropout linear regulators (LDOs) are indispensable for conditioning power supplies and providing clean, stable voltage to noise-sensitive circuitry. Analog Devices' LT3062IDCB#TRMPBF stands out as a premier solution in this category, engineered to deliver exceptional performance where low noise, high accuracy, and reliability are paramount. This article provides a detailed technical examination of this advanced regulator.

The LT3062 is a 200mA, **very low noise (30µVRMS) and high PSRR LDO** that offers an adjustable output voltage range from 0.6V to 45V. Its remarkably low dropout voltage of just 300mV at full 200mA load ensures efficient operation even as the input voltage approaches the output level, making it exceptionally suitable for battery-powered applications and systems with tight voltage headroom.

A defining characteristic of the LT3062 is its ultra-low output noise performance. By utilizing a proprietary architecture, it achieves a noise level of **just 30µVRMS (10Hz to 100kHz)** without requiring an additional noise-bypass capacitor, which is often necessary in competing designs. This feature is critical for powering sensitive analog components such as RF transceivers, precision analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and various sensors, where power supply noise can directly degrade system performance.

Furthermore, the regulator exhibits **excellent power supply rejection ratio (PSRR)**, exceeding 70dB at 10kHz. This high PSRR effectively attenuates ripples and noise originating from the input supply, such as switching noise from a preceding DC-DC converter, ensuring a pristine output under dynamic operating conditions.

The device incorporates a wide input voltage capability, operating from 1.6V to 45V, providing significant flexibility in diverse application environments. For system protection and robustness, the LT3062 is equipped with comprehensive features including **internal current limiting, thermal shutdown, and reverse battery protection**. The inclusion of reverse output protection safeguards the IC if the output is held above the input voltage, a common fault condition in complex systems.

Housed in a compact, low-profile 8-lead 3mm × 2mm DFN package (DCB), the LT3062IDCB#TRMPBF is optimized for space-constrained PCB designs. Its stable operation with very small, low-ESR ceramic capacitors (as low as 10µF) further minimizes the solution footprint and bill-of-materials cost.

**ICGOOODFIND:** The Analog Devices LT3062IDCB#TRMPBF is a superior 200mA LDO voltage regulator that excels in providing an ultra-clean, stable power rail. Its combination of **exceptionally low noise, high PSRR, wide input voltage range, and robust protection features** makes it an ideal choice for demanding applications in industrial instrumentation, medical devices, telecommunications infrastructure, and portable test equipment.

**Keywords:** Low Noise LDO, High PSRR, 200mA Voltage Regulator, Ultra-Low Dropout, Precision Power Management.