Microchip Technology TC2015-2.85VCTTR

Overview

TC2015-2.85VCTTR from Microchip Technology is a 100 mA, 2.85 V fixed-output CMOS low-dropout (LDO) voltage regulator in a 5-pin SOT-23A package, featuring ±0.4% output voltage accuracy, 140 mV typical dropout at 150 mA, 80 µA max supply current, and integrated shutdown control with 60 µs wake-up response-designed for battery-powered medical instruments and portable communication devices.

For engineers reviewing the TC2015-2.85VCTTR datasheet, TC2015-2.85VCTTR pinout, TC2015-2.85VCTTR application, or TC2015-2.85VCTTR equivalent, this page delivers verified electrical specs, thermal behavior, bypass-capacitor design guidance, and real-world load-transient performance under 2.85 V output conditions.

Technical Context

The TC2015-2.85VCTTR implements a CMOS-based LDO architecture optimized for ultra-low quiescent current (55 µA typ.) independent of load, enabling stable regulation across –40°C to +125°C with only 1 µF ceramic output capacitance. Its reference bypass input accepts 470 pF–0.01 µF capacitors to reduce output noise to 200 nV/√Hz and improve PSRR to 55 dB below 1 kHz.

Shutdown logic operates with VIH ≥ 60% VIN and VIL ≤ 15% VIN, reducing supply current to 0.5 µA max while driving VOUT to 0 V. Thermal protection activates at 160°C junction temperature, with automatic recovery at ~150°C, and the device sustains 100 mA continuous output within its 255°C/W θJA thermal resistance limit in standard PCB layouts.

Key Specifications

Pinout & Package

Package: 5-Lead Plastic SOT-23A (EIAJ SC-74A), 2.95 mm × 1.63 mm × 1.18 mm body, 0.95 mm lead pitch, 255°C/W junction-to-air thermal resistance on standard FR4 board.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-285I/TT and TPS7A05285PDBVR, the TC2015-2.85VCTTR uniquely balances 100 mA capability, ±0.4% accuracy, 140 mV dropout, and dedicated bypass input-making it optimal for precision analog and RF subsystems where noise and regulation tightness outweigh raw current or IQ metrics.

Availability

TC2015-2.85VCTTR is available at Aetrix Electronics and suitable for battery-operated medical instruments, portable GSM phone baseband modules, and industrial handheld test equipment requiring stable component supply with guaranteed long-term availability.

Supply support for TC2015-2.85VCTTR 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 Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management ICs, with global manufacturing and quality certifications including ISO 9001 and AEC-Q200 for automotive-grade products.

The TC2015-2.85VCTTR belongs to Microchip's TC2014/2015/2185 family of CMOS LDO regulators, designed specifically to replace legacy bipolar regulators (e.g., LP2980) in space-constrained, battery-sensitive applications demanding high accuracy and ultra-low quiescent current.

FAQ

What is the maximum input voltage rating for the TC2015-2.85VCTTR?

The TC2015-2.85VCTTR has an absolute maximum input voltage rating of 7.0 V. Operation above this level risks permanent damage. For reliable long-term use, the recommended maximum operating input voltage is 6.0 V, as specified in the electrical characteristics table under "Input Operating Voltage." This ensures safe margin against transients and maintains parametric performance across temperature.

Does the TC2015-2.85VCTTR require an external bypass capacitor for basic functionality?

No-the TC2015-2.85VCTTR operates fully functional without an external bypass capacitor. The Bypass pin (Pin 4) is optional and used only to reduce output noise and improve PSRR. When left unconnected, the device still delivers 2.85 V ±0.4% regulation with 100 mA capability and 140 mV dropout. Adding a 0.01 µF ceramic capacitor between Bypass and GND lowers noise to 200 nV/√Hz and boosts PSRR to 55 dB at low frequencies.

Can the TC2015-2.85VCTTR be used with ceramic output capacitors smaller than 1 µF?

No-the TC2015-2.85VCTTR requires a minimum 1 µF ceramic output capacitor for guaranteed stability across all operating conditions. The datasheet explicitly states "A 1 µF (min) capacitor from VOUT to ground is required" and specifies ESR ranges (0.01–5 Ω) compatible with X5R/X7R dielectrics. Using smaller values may cause oscillation or degraded transient response, especially under load steps.

What is the shutdown current consumption of the TC2015-2.85VCTTR?

The TC2015-2.85VCTTR draws a maximum of 0.5 µA supply current in shutdown mode, with a typical value of 0.05 µA. This occurs when the SHDN pin is driven to ≤15% VIN, causing VOUT to fall to 0 V. The ultra-low shutdown current makes the TC2015-2.85VCTTR suitable for energy-harvesting and multi-year battery applications where leakage must be minimized.

Is the TC2015-2.85VCTTR pin-compatible with the LP2980 series?

Yes-the TC2015-2.85VCTTR is explicitly described in its datasheet as a "pin-compatible upgrade for bipolar regulators such as the LP2980," sharing identical 5-pin SOT-23A pinout (VIN, GND, SHDN, Bypass, VOUT). However, unlike the LP2980, the TC2015-2.85VCTTR adds the Bypass pin and delivers 20× lower quiescent current, ±0.4% accuracy, and faster wake-up-requiring no PCB changes for drop-in replacement in most designs.