Toshiba Semiconductor and Storage TCR2EN10,LF

Overview

TCR2EN10,LF from Toshiba Electronic Devices & Storage Corporation is a 1.0 V fixed-output CMOS low-dropout linear regulator delivering up to 200 mA, featuring 490 mV typical dropout at 150 mA load, ±18 mV output voltage accuracy, and Auto-discharge functionality. It operates from 1.5 V to 5.5 V input and targets power-sensitive portable electronics requiring ultra-compact regulation.

For engineers reviewing the TCR2EN10,LF datasheet, TCR2EN10,LF pinout, TCR2EN10,LF application, or TCR2EN10,LF equivalent, key selection criteria include its SDFN4/SDFN4E 0.8 mm × 0.8 mm package, 35 µA quiescent current, 73 dB ripple rejection at 1 kHz, and compatibility with 0.1 µF input / 1.0 µF ceramic output capacitors in space-constrained designs.

Technical Context

The TCR2EN10,LF implements a CMOS-based LDO architecture with integrated overcurrent protection and an active control input (CONTROL pin) that enables ON/OFF operation with 0.1 µA standby current. Its internal reference and error amplifier deliver stable 1.0 V output across −40°C to +85°C ambient temperature.

Designed for high-density board assembly, the device uses a single-stage pass transistor with low thermal resistance in its SDFN4E package and achieves fast load transient response (±55 mV deviation under 1 mA ↔ 150 mA step) due to optimized internal compensation and minimal external capacitance requirements.

Key Specifications

Pinout & Package

The TCR2EN10,LF is housed in an ultra-small SDFN4E plastic mold package (0.8 mm × 0.8 mm × 0.38 mm) with exposed thermal pad on bottom side. The center electrode must be connected to GND or left open per design requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise, ultra-small LDO applications.

Compared with AP2112K-1.0TRG1 and MCP1700T-1002E/TT, the TCR2EN10,LF uniquely combines 0.8 mm × 0.8 mm size, 18 µVrms noise, Auto-discharge, and 490 mV dropout at 150 mA-making it optimal for next-generation miniaturized, battery-powered systems demanding both space and signal integrity.

Availability

TCR2EN10,LF is available at Aetrix Electronics and suitable for portable medical monitors, IoT edge node microcontrollers, smart wearable sensors, miniature audio amplifiers, and other applications requiring stable component supply with ultra-small footprint and low-noise performance.

Supply support for TCR2EN10,LF 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability semiconductor solutions for consumer, industrial, and automotive markets, with emphasis on energy efficiency and miniaturization.

The TCR2EN series belongs to Toshiba's CMOS Linear Integrated Circuit portfolio, engineered specifically for ultra-compact, low-quiescent-current LDO regulation in battery-powered portable electronics where board area and noise performance are critical constraints.

FAQ

What is the maximum input voltage rating for the TCR2EN10,LF?

The TCR2EN10,LF has an absolute maximum input voltage (VIN) rating of 6.0 V. Operation above this level risks permanent damage. For reliable continuous use, the recommended operating input range is 1.5 V to 5.5 V, ensuring proper regulation and thermal margin across all load and temperature conditions specified in the datasheet.

Does the TCR2EN10,LF require an external pull-down resistor on the CONTROL pin?

No, the TCR2EN10,LF integrates an internal pull-down connection between CONTROL and GND. An external resistor is unnecessary unless specific timing or noise immunity requirements demand stronger drive-such as interfacing with open-drain controllers or noisy environments where leakage currents could cause unintended turn-on.

Can the TCR2EN10,LF be used with tantalum or aluminum electrolytic output capacitors?

The TCR2EN10,LF is characterized and guaranteed for stability with ceramic capacitors (COUT = 1.0 µF, ESR < 10 Ω). While tantalum or aluminum electrolytics may function in some cases, their higher ESR and aging characteristics can degrade transient response and long-term reliability. Toshiba explicitly recommends ceramic capacitors to ensure full specification compliance.

What is the thermal performance of the TCR2EN10,LF in its SDFN4E package?

When mounted on a standard FR4 board (40 mm × 40 mm, 1.6 mm thick, 50% copper coverage), the TCR2EN10,LF has a power dissipation limit of 300 mW. At 150 mA load and 1.49 V minimum input (490 mV dropout), power dissipation is ~74 mW-well within safe limits. Junction temperature remains below 150°C even at +85°C ambient, assuming proper PCB thermal relief.

How does the Auto-discharge function operate in the TCR2EN10,LF?

When the CONTROL pin voltage drops to ≤0.4 V (OFF state), the TCR2EN10,LF activates an internal discharge switch between VOUT and GND. This rapidly drains stored charge from the output capacitor, bringing VOUT to near-zero volts within microseconds-critical for precise power sequencing and avoiding back-powering of downstream circuitry during shutdown.