Microchip Technology MIC5213-2.6YC5-TR

Overview

MIC5213-2.6YC5-TR from Micrel is a fixed-output 2.6V, 80mA low-dropout linear voltage regulator in SC-70-5 package, featuring 20mV dropout at light load, 225µA ground current at 20mA output, and ±3% initial output voltage accuracy. It integrates logic-compatible enable control, reversed-battery protection, and thermal shutdown, and is optimized for battery-powered handheld devices requiring ultra-small footprint and low quiescent power.

For engineers reviewing the MIC5213-2.6YC5-TR datasheet, MIC5213-2.6YC5-TR pinout, MIC5213-2.6YC5-TR application, or MIC5213-2.6YC5-TR equivalent, key selection considerations include dropout behavior under 80mA load, stability with 0.47µF ceramic output capacitor, enable threshold compatibility with TTL/CMOS logic, and thermal performance in SC-70-5 layout with θ_JA = 450°C/W.

Technical Context

The MIC5213-2.6YC5-TR uses a PNP-based µCap architecture enabling stable regulation with only 0.47µF ceramic output capacitance and no minimum load requirement. Its enable input accepts 0–20V logic signals independent of input supply, with V_IL ≤ 0.6V (shutdown) and V_IH ≥ 2.0V (active), drawing just 10nA in off mode.

Dropout voltage remains tightly controlled across temperature (–40°C to +125°C) and load (100µA to 80mA), ranging from 20mV at light load to 280mV typical at 80mA. Ground current increases only modestly in dropout-200–300µA-extending battery life in low-V_IN conditions.

Key Specifications

Pinout & Package

Package: SC-70-5 (C5), 2.20 × 1.35 mm footprint, 0.65 mm pitch, 0.9 mm max height - half the area of SOT-23-5.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout regulator applications.

Compared with MCP1700T-2602E/TT and TPS7A0526PDQNR, the MIC5213-2.6YC5-TR uniquely combines SC-70-5 size, integrated enable, reversed-polarity protection, and proven 0.47µF stability-making it optimal for space-constrained, battery-critical, and field-deployed systems where robustness and minimal external components are mandatory.

Availability

MIC5213-2.6YC5-TR is available at Aetrix Electronics and suitable for cellular telephones, portable medical sensors, barcode scanners, and industrial IoT edge nodes requiring stable component supply with guaranteed long-term continuity.

Supply support for MIC5213-2.6YC5-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

Micrel, Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015; its legacy LDO portfolio remains widely deployed in industrial and portable systems.

The MIC5213 family was designed specifically for ultra-compact, battery-powered applications demanding minimal footprint, low dropout, and high reliability-targeting handheld communications, portable instrumentation, and energy-harvesting subsystems.

FAQ

What is the minimum input voltage required for MIC5213-2.6YC5-TR to maintain regulation at 80mA?

The MIC5213-2.6YC5-TR requires an input voltage at least 280mV above 2.6V (i.e., ≥2.88V) to sustain 80mA output in regulation, based on its typical dropout voltage specification. At lighter loads, dropout drops to 20mV, allowing operation down to ~2.62V. This makes MIC5213-2.6YC5-TR well-suited for single-cell Li-ion and Li-polymer battery applications across full discharge range.

Can MIC5213-2.6YC5-TR operate without an output capacitor?

No-MIC5213-2.6YC5-TR requires a minimum 0.47µF ceramic output capacitor for stability, as confirmed in the Applications Information section. While it remains stable with no load, omitting the output capacitor risks oscillation and regulation failure. The capacitor must be placed close to the OUT and GND pins; X7R or X5R dielectrics are recommended for low ESR and temperature stability.

Is the enable pin of MIC5213-2.6YC5-TR compatible with 1.8V logic?

Yes-the MIC5213-2.6YC5-TR enable pin accepts logic-high signals ≥2.0V and logic-low signals ≤0.6V, making it fully compatible with standard 1.8V, 3.3V, and 5V CMOS/TTL outputs. When driven by a 1.8V GPIO, ensure the driver can reliably exceed the 2.0V V_IH threshold; if not, a simple resistive pull-up to 3.3V is recommended. MIC5213-2.6YC5-TR itself draws only 8–50µA at V_EN ≥ 2.0V.

Does MIC5213-2.6YC5-TR provide reverse-voltage protection on the input pin?

Yes-MIC5213-2.6YC5-TR includes built-in reversed-input polarity protection, allowing it to withstand –20V applied to the IN pin without damage or latch-up. This feature safeguards against incorrect battery installation or accidental reverse wiring in field-deployed equipment. The protection operates independently of EN state and does not require external components.

What is the thermal resistance (θ_JA) of MIC5213-2.6YC5-TR in standard PCB layout?

The junction-to-ambient thermal resistance (θ_JA) of MIC5213-2.6YC5-TR in the SC-70-5 package is 450°C/W when mounted on a standard FR-4 PCB with typical copper pour. This value assumes no additional heatsinking; actual thermal performance improves with larger GND copper areas or thermal vias. For continuous 80mA operation at elevated ambient temperatures, users should verify power dissipation using PD = (V_IN – 2.6V) × I_OUT + V_IN × I_GNDD and confirm TJ stays below 125°C.