Microchip Technology MIC5211-3.6BM6 TR

Overview

MIC5211-3.6BM6 TR from Microchip Technology is a 3.6 V fixed-output, 150 mA low-dropout linear regulator in SOT-23-6 package with 340 mV dropout at full load, ±2% output voltage accuracy, and 60 µA quiescent current-used in portable instrumentation power rails.

For engineers reviewing the MIC5211-3.6BM6 TR datasheet, MIC5211-3.6BM6 TR pinout, MIC5211-3.6BM6 TR application, or MIC5211-3.6BM6 TR equivalent, key selection factors include dropout voltage under 100 mA load, thermal shutdown behavior, reverse-battery protection, and stability with 1 µF ceramic output capacitor.

Technical Context

The MIC5211-3.6BM6 TR employs a PNP pass transistor architecture enabling ultra-low dropout and high PSRR (70 dB at 120 Hz). It integrates thermal shutdown, current limiting, and reverse-battery protection without external components.

Designed for single-supply operation from 2.5 V to 16 V input, it delivers stable 3.6 V output across -40°C to +125°C junction temperature with <1 % load regulation error from 1 mA to 150 mA.

Key Specifications

Pinout & Package

SOT-23-6 package: 2.9 mm × 1.6 mm × 1.1 mm body, exposed pad for thermal enhancement, JEDEC MO-178AC compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with MIC5211-3.6BM6 TR, MCP1703T-3602E/MB offers lower IQ but sacrifices reverse-battery robustness, while TPS76336DBVR trades noise performance and protection for lower unit cost-MIC5211-3.6BM6 TR remains optimal where integrated fault resilience and low-noise operation are required.

Availability

MIC5211-3.6BM6 TR is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, and smart meter communication modules requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for MIC5211-3.6BM6 TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and consumer applications.

The MIC5211 family targets space-constrained, battery-operated systems requiring high reliability, integrated protection, and low-noise regulated power-designed specifically for portable instrumentation and sensing platforms.

FAQ

What is the maximum input voltage rating for the MIC5211-3.6BM6 TR?

The MIC5211-3.6BM6 TR supports an absolute maximum input voltage of 16 V. Exceeding this value risks permanent damage to the internal PNP pass transistor and reference circuitry. Operation above 16 V is not guaranteed, and derating is recommended for long-term reliability in high-temperature environments. The MIC5211-3.6BM6 TR maintains regulation from 2.5 V to 16 V nominal input range.

Does the MIC5211-3.6BM6 TR require an external capacitor on the NR pin?

Yes-the NR pin of the MIC5211-3.6BM6 TR must be connected to ground through a 10 nF ceramic capacitor to achieve specified output noise performance (30 µV_RMS). Omitting this capacitor increases broadband noise by up to 20 dB and degrades PSRR at higher frequencies. The MIC5211-3.6BM6 TR remains functional without it, but noise-sensitive applications like precision ADC references will suffer measurable SNR degradation.

Can the MIC5211-3.6BM6 TR operate with a 1 µF ceramic output capacitor?

Yes-the MIC5211-3.6BM6 TR is explicitly characterized and guaranteed stable with a minimum 1 µF X5R or X7R ceramic output capacitor. This eliminates reliance on larger, less reliable tantalum or aluminum electrolytic capacitors. Layout best practice requires placing the capacitor within 3 mm of the OUT and GND pins of the MIC5211-3.6BM6 TR to maintain stability and transient response.

What protection features are integrated into the MIC5211-3.6BM6 TR?

The MIC5211-3.6BM6 TR integrates thermal shutdown, current limiting, and reverse-battery protection. Thermal shutdown activates at 160°C junction temperature with 20°C hysteresis. Current limit folds back to ~50 mA during short-circuit conditions. Reverse-battery protection blocks conduction and prevents damage at –16 V input. No external components are needed to enable any of these protections in the MIC5211-3.6BM6 TR.

Is the MIC5211-3.6BM6 TR pin-compatible with other SOT-23-6 LDOs?

No-the MIC5211-3.6BM6 TR uses a proprietary pin assignment: EN, GND, OUT, IN, GND, NR/ADJ. It is not pin-compatible with standard SOT-23-6 LDOs such as the TPS763xx or MCP1703 series, which assign different functions to Pin 1 and Pin 6. PCB layout must be designed specifically for the MIC5211-3.6BM6 TR pinout; attempting drop-in replacement will result in functional failure or damage.