Toshiba Semiconductor and Storage TCR2EE15,LM(CT

Overview

TCR2EE15,LM(CT from Toshiba Electronic Devices & Storage Corporation is a 1.5 V fixed-output, 200 mA CMOS low dropout regulator with on/off control input, 180 mV typical dropout (at 150 mA), 35 μVrms output noise, and ±60 mV load transient response (1 mA ⇔ 150 mA). It delivers stable bias for RF transceivers and analog sensor front-ends in portable instrumentation.

For engineers reviewing the TCR2EE15,LM(CT) datasheet, TCR2EE15,LM(CT) pinout, TCR2EE15,LM(CT) application, or TCR2EE15,LM(CT) equivalent, key selection criteria include dropout voltage at 150 mA, output accuracy (±1.0 % for 1.5 V), ceramic capacitor compatibility (CIN = 0.1 μF, COUT = 1.0 μF), and ESV (SOT-553) package thermal performance.

Technical Context

The TCR2EE15,LM(CT) employs a CMOS pass transistor architecture enabling ultra-low quiescent current (35 μA typ.) and fast load transient recovery (±60 mV with 1.0 μF ceramic output cap). Its internal overcurrent protection and auto-discharge function ensure safe power sequencing in battery-powered systems.

It operates across −40°C to +85°C with input voltage range 1.5–5.5 V and requires no external compensation. The CONTROL pin supports active-high enable (1.0–5.5 V) and active-low shutdown (0–0.4 V), with 0.1 μA standby current when disabled.

Key Specifications

Pinout & Package

TCR2EE15,LM(CT) uses the ESV (SOT-553) package: 1.6 mm × 1.6 mm × 0.55 mm, 3.0 mg weight, thermally optimized for space-constrained PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EE15,LM(CT), the TCS2EF15,LM(CT) offers identical electrical specs in a larger, thermally robust package, while AP2112K-1.5TRG1 trades noise performance and sequencing features for higher current and broader market availability - neither is pin-compatible, requiring layout revision.

Availability

TCR2EE15,LM(CT) is available at Aetrix Electronics and suitable for portable medical sensors, wireless IoT edge nodes, and industrial process controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TCR2EE15,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-reliability semiconductor solutions for industrial, automotive, and consumer applications, with emphasis on power efficiency and signal integrity.

The TCR2EE series belongs to Toshiba's CMOS LDO portfolio targeting ultra-low-noise, fast-transient power delivery for analog and RF subsystems in space- and power-constrained designs.

FAQ

What is the guaranteed output voltage accuracy of TCR2EE15,LM(CT) over temperature?

The TCR2EE15,LM(CT) guarantees ±1.0 % output voltage accuracy for 1.5 V output across −40°C to +85°C operating temperature. This is confirmed in the Electrical Characteristics table (Note 6) and applies under standard test conditions (VIN = VOUT + 1 V, IOUT = 50 mA). The accuracy ensures reliable interfacing with 1.5 V logic families without external calibration.

Can TCR2EE15,LM(CT) operate with a 1.6 V input supply?

No - the minimum input voltage for TCR2EE15,LM(CT) is 1.5 V, but stable regulation requires VIN ≥ VOUT + VDO. With a typical dropout of 290 mV at 150 mA, a 1.6 V input yields insufficient headroom (only 100 mV), risking dropout and output collapse. A minimum 1.79 V input is recommended for full 150 mA load capability.

Does TCR2EE15,LM(CT) require an external pull-down resistor on the CONTROL pin?

No - the TCR2EE15,LM(CT) integrates an internal pull-down between CONTROL and GND, as stated in the Features list. An external resistor is unnecessary unless specific noise immunity or timing control is required; the internal pull-down ensures predictable OFF-state behavior during power-up or floating conditions.

Is the TCR2EE15,LM(CT) compatible with 10 μF tantalum output capacitors?

The datasheet specifies stability with ≥1.0 μF ceramic capacitors and recommends ESR < 10 Ω. While tantalum caps may function, their higher ESR and aging characteristics risk instability or degraded transient response. Toshiba explicitly qualifies ceramic types only; using tantalum voids guaranteed performance and is not recommended for production designs.

What is the thermal resistance (θJA) of TCR2EE15,LM(CT) in its ESV package?

Toshiba does not publish θJA for TCR2EE15,LM(CT) in ESV (SOT-553); instead, it provides board-mounted power dissipation ratings: 150 mW (unit rating) and 320 mW (on 30 mm × 30 mm × 0.8 mm FR4 board). Thermal design must follow the Application Note's guidance - mounting near large copper areas and minimizing trace length to GND - rather than relying on generic θJA values.