Toshiba Semiconductor and Storage TCR2EE40,LM(CT

Overview

TCR2EE40,LM(CT) from Toshiba Electronic Devices & Storage Corporation is a 4.0 V fixed-output, 200 mA CMOS low dropout (LDO) regulator in SOT-553 (ESV) package, featuring 150 mV typical dropout at 150 mA load, 35 μV_rms output noise, ±60 mV load transient response, and integrated auto-discharge function - designed for powering sensitive analog and RF circuitry in portable and space-constrained systems.

For engineers reviewing the TCR2EE40,LM(CT) datasheet, TCR2EE40,LM(CT) pinout, TCR2EE40,LM(CT) application, or TCR2EE40,LM(CT) equivalent, key selection criteria include dropout voltage under 200 mV at full load, sub-1% output accuracy (±1.0% for V_OUT ≥ 1.8 V), ultra-low quiescent current (35 μA typ.), ceramic capacitor compatibility (C_IN = 0.1 μF, C_OUT = 1.0 μF), and on/off control interface with defined V_CT(OFF) ≤ 0.4 V.

Technical Context

The TCR2EE40,LM(CT) employs a CMOS pass transistor architecture enabling low dropout and minimal quiescent current. Its internal control loop delivers fast load transient response (±60 mV with 1 mA ↔ 150 mA step, 1.0 μF output cap) and high ripple rejection (73 dB at 1 kHz).

It integrates overcurrent protection and an auto-discharge function activated when CONTROL is pulled low, discharging the output capacitor through an internal path. The device operates across −40°C to +85°C with input voltage range 1.5–5.5 V and requires no external compensation due to ceramic capacitor stability.

Key Specifications

Pinout & Package

TCR2EE40,LM(CT) is housed in the ESV (SOT-553) package: 1.6 mm × 1.6 mm × 0.55 mm, 5-pin surface-mount, tape-and-reel format (LM(CT)).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EE40,LM(CT), TCS2004-4.0 trades lower cost for reduced noise and missing auto-discharge, while MCP1700T-4002E/MB prioritizes nanoamp quiescent current at the expense of transient performance and output accuracy - making TCR2EE40,LM(CT) optimal for noise-sensitive, sequenced, and moderately dynamic 4.0 V analog/RF loads.

Availability

TCR2EE40,LM(CT) is available at Aetrix Electronics and suitable for portable medical sensors, wireless IoT endpoints, RF front-end modules, and industrial control signal conditioning requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for TCR2EE40,LM(CT) 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 high-efficiency, high-reliability semiconductor solutions for consumer, industrial, and automotive markets, with deep expertise in analog, power, and logic ICs.

The TCR2EE series targets space-constrained, battery-powered applications demanding ultra-low noise, fast transient response, and precise voltage regulation - especially in analog signal chains and RF subsystems where power integrity directly impacts performance.

FAQ

What is the guaranteed output voltage accuracy of TCR2EE40,LM(CT) over temperature and load?

The TCR2EE40,LM(CT) guarantees ±1.0% output voltage accuracy for V_OUT ≥ 1.8 V, including across the full operating temperature range (−40°C to +85°C) and load current (1–150 mA). This specification is verified per Toshiba's Electrical Characteristics table and ensures stable biasing for precision analog components without external trimming.

Can TCR2EE40,LM(CT) operate with input voltages below 4.0 V?

Yes - the TCR2EE40,LM(CT) supports input voltages as low as 1.5 V, but regulation requires VIN ≥ VOUT + VDO. With a typical dropout of 150 mV at 150 mA, it maintains 4.0 V output down to VIN = 4.15 V. Below that, output drops linearly; operation below 4.15 V is valid only in dropout mode with proportional VOUT reduction.

Does TCR2EE40,LM(CT) require an external pull-down resistor on the CONTROL pin?

No - the TCR2EE40,LM(CT) includes an internal pull-down between CONTROL and GND, ensuring default OFF state when the pin is left unconnected. An external resistor is unnecessary unless active driving is required for noise immunity or timing control in synchronized power sequencing.

What ceramic capacitor ESR is recommended for TCR2EE40,LM(CT)?

Toshiba recommends using ceramic capacitors with ESR under 10 Ω for both CIN (≥0.1 μF) and COUT (≥1.0 μF). The TCR2EE40,LM(CT) is internally compensated for low-ESR ceramics, eliminating need for tantalum or aluminum electrolytics and supporting compact, high-reliability layouts.

How does the auto-discharge function behave in TCR2EE40,LM(CT)?

When the CONTROL pin is driven ≤0.4 V (OFF state), the TCR2EE40,LM(CT) activates an internal discharge path from VOUT to GND, rapidly draining the output capacitor. This prevents residual voltage from interfering with downstream logic reset or violating sequencing requirements - a key feature absent in most standard LDOs.