Microchip Technology TC1107-5.0VUATR

Overview

TC1107-5.0VUATR from Microchip Technology is a fixed-output 5.0V CMOS low-dropout (LDO) regulator with 300mA output current, ±0.5% output voltage accuracy, and ultra-low 50µA typical supply current. It features shutdown control, bypass input for noise reduction, and over-temperature/over-current protection - designed for battery-powered medical instruments and portable computing systems.

For engineers reviewing the TC1107-5.0VUATR datasheet, TC1107-5.0VUATR pinout, TC1107-5.0VUATR application, or TC1107-5.0VUATR equivalent, key selection criteria include dropout voltage at full load (270mV max), shutdown current (0.05µA typ), PSRR (60dB @ ≤1kHz), thermal shutdown threshold (150°C), and MSOP-8 package compatibility with 1µF minimum output capacitance.

Technical Context

The TC1107-5.0VUATR uses a CMOS pass element to achieve stable regulation across 0–300mA load without supply current increase - unlike legacy bipolar LDOs. Its reference bypass input accepts a 470pF capacitor to reduce internal reference noise, directly lowering output noise to 260nV/√Hz at 1kHz.

Shutdown is implemented via a logic-level SHDN pin with VIH ≥45% VIN and VIL ≤15% VIN, enabling direct interface with microcontroller I/O ports. Thermal protection disables regulation when junction temperature exceeds 150°C and re-enables at ~140°C.

Key Specifications

Pinout & Package

TC1107-5.0VUATR is housed in an 8-pin MSOP package (3.0mm × 3.0mm × 1.1mm height), optimized for space-constrained portable designs. The package includes exposed pad for thermal enhancement and is RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700-5002E/TO, TC1107-5.0VUATR delivers 20% more output current while maintaining sub-100µA IQ; versus NCP1117ST50T3G, it achieves 60× lower quiescent current and 78% lower dropout - enabling smaller thermal solution and longer battery runtime in portable designs.

Availability

TC1107-5.0VUATR is available at Aetrix Electronics and suitable for battery-operated medical instruments, cellular/GSM phone subsystems, and industrial data loggers requiring stable component supply and long-term lifecycle support.

Supply support for TC1107-5.0VUATR 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 ISO/TS-16949 certified fabrication facilities.

The TC1107 product line was engineered as a CMOS-based LDO upgrade to legacy bipolar regulators - targeting high-accuracy, low-noise, and ultra-low-power applications in portable and medical electronics.

FAQ

What is the maximum input voltage rating for TC1107-5.0VUATR?

The absolute maximum input voltage for TC1107-5.0VUATR is 6.5V. However, the recommended operating input voltage range is 2.7V to 6.0V per the electrical specifications table. Exceeding 6.0V may cause reliability degradation even if below the absolute maximum, and operation below 2.7V cannot guarantee regulation at full 300mA load due to dropout constraints. Always maintain VIN ≥ VOUT + dropout voltage (270mV max at 300mA) for stable TC1107-5.0VUATR performance.

Does TC1107-5.0VUATR require an external bypass capacitor for basic operation?

No, TC1107-5.0VUATR operates fully functional without an external bypass capacitor. The Bypass pin (Pin 7) is optional: connecting a 470pF capacitor reduces output noise from 260nV/√Hz to lower levels by filtering the internal reference. If noise sensitivity is not critical - e.g., in digital-only power domains - the Bypass pin may be left unconnected. TC1107-5.0VUATR maintains regulation, accuracy, and stability regardless of Bypass pin state.

Can TC1107-5.0VUATR be used with ceramic output capacitors?

Yes, TC1107-5.0VUATR is explicitly designed to be stable with ceramic output capacitors of ≥1µF and ESR between 0.1Ω and 5.0Ω. The datasheet confirms stability with standard X5R/X7R 1µF ceramics, eliminating need for tantalum or aluminum electrolytics. This allows compact, high-reliability layouts. Ensure the capacitor's voltage rating exceeds the 5.0V output - a 6.3V or 10V-rated 1µF ceramic is optimal for TC1107-5.0VUATR designs.

What happens to the output voltage of TC1107-5.0VUATR during shutdown?

When the SHDN pin of TC1107-5.0VUATR is driven low (≤15% VIN), the regulator enters shutdown mode: VOUT falls to 0V, and supply current drops to 0.05µA typical. The output is actively discharged - no external pull-down is needed. Upon SHDN return to high (≥45% VIN), VOUT ramps up to 5.0V with typical startup time governed by output capacitance and load; no external soft-start circuit is required. This behavior is guaranteed across the full -40°C to +125°C temperature range for TC1107-5.0VUATR.

Is TC1107-5.0VUATR pin-compatible with other variants in the TC1107 family?

Yes, all TC1107 variants - including TC1107-2.5VUATR, TC1107-3.3VUATR, and TC1107-5.0VUATR - share identical 8-pin MSOP (UATR) pinout and package dimensions. The only difference is the factory-trimmed output voltage. This allows drop-in replacement across voltage options during design iteration or inventory optimization, provided the application's load, thermal, and noise requirements remain consistent for TC1107-5.0VUATR and its siblings.