Toshiba Semiconductor and Storage TCR2EE27,LM(CT

Overview

TCR2EE27,LM(CT) from Toshiba Electronic Devices & Storage Corporation is a 2.7 V fixed-output CMOS low dropout (LDO) regulator with on/off control, delivering up to 200 mA output current, 180 mV typical dropout at 150 mA, 35 μVrms output noise, and ±60 mV load transient response (1 mA ⇔ 150 mA, COUT = 1.0 μF). It serves as a precision power supply for analog and RF signal chains in portable instrumentation and wireless modules.

For engineers reviewing the TCR2EE27,LM(CT) datasheet, TCR2EE27,LM(CT) pinout, TCR2EE27,LM(CT) application, or TCR2EE27,LM(CT) equivalent, key selection criteria include dropout voltage at 150 mA, output accuracy (±1.0 %), quiescent current (35 μA typ.), ceramic capacitor compatibility (CIN ≥ 0.1 μF, COUT ≥ 1.0 μF), and thermal performance in ESV (SOT-553) package.

Technical Context

The TCR2EE27,LM(CT) employs a CMOS pass transistor architecture enabling ultra-low quiescent current (35 μA typ.) and fast load transient recovery without external compensation. Its internal overcurrent protection and auto-discharge function ensure safe shutdown and rapid output discharge when disabled via the CONTROL pin.

It operates across −40°C to +85°C ambient temperature with input voltage range 1.5–5.5 V and supports stable regulation using only ceramic capacitors-no ESR requirements beyond <10 Ω-making it suitable for space-constrained, battery-powered systems requiring clean, responsive bias rails.

Key Specifications

Pinout & Package

TCR2EE27,LM(CT) is packaged in ESV (SOT-553), a 1.6 mm × 1.6 mm × 0.55 mm ultra-small surface-mount package weighing 3.0 mg (typ.). This footprint enables high-density PCB layouts in compact IoT edge devices and miniature medical sensors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EE27,LM(CT), TCS2027B,LM(CT) trades smaller size for higher current and thermal capability, while MCP1703T-2702E/MB offers lower cost at the expense of noise performance and dropout-making TCR2EE27,LM(CT) optimal for space-constrained, noise-critical analog/RF power rails.

Availability

TCR2EE27,LM(CT) is available at Aetrix Electronics and suitable for portable medical sensors, wireless transceiver bias, industrial IoT edge nodes, and automotive cabin sensing requiring stable component supply with tight output accuracy and ultra-low noise.

Supply support for TCR2EE27,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 and manufactures 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 regulator product line, engineered specifically for noise-sensitive analog and RF power domains where low dropout, fast transient response, and ceramic capacitor compatibility are essential.

FAQ

What is the guaranteed output voltage accuracy of TCR2EE27,LM(CT) over temperature?

The TCR2EE27,LM(CT) guarantees ±1.0 % output voltage accuracy for all output voltages ≥1.8 V-including its 2.7 V nominal output-across the full operating temperature range of −40°C to +85°C. This specification is verified under standard test conditions (VIN = VOUT + 1 V, IOUT = 50 mA) and applies to production units per Toshiba's electrical characteristics table. The TCR2EE27,LM(CT) achieves this via laser-trimmed internal reference and process-controlled feedback network.

Can TCR2EE27,LM(CT) operate with input voltage below 2.7 V?

Yes, the TCR2EE27,LM(CT) can regulate down to VIN = VOUT + VDO, where VDO is 180 mV typical at 150 mA. Thus, with 2.7 V output, minimum functional input is ~2.88 V under that load. At lighter loads (e.g., 1 mA), dropout drops significantly-enabling operation from as low as ~2.71 V. However, input must remain ≥1.5 V per absolute maximum ratings, and regulation ceases if VIN falls below VOUT + VDO for the given load. The TCR2EE27,LM(CT) will not latch or damage but enters dropout mode with unregulated output.

Does TCR2EE27,LM(CT) require an external pull-up or pull-down on the CONTROL pin?

No, the TCR2EE27,LM(CT) integrates an internal pull-down between CONTROL and GND, as explicitly stated in the features list. This ensures default OFF state upon power-up or floating CONTROL, preventing unintended activation. External pull-up is only needed if active-high enable logic is required in the system; otherwise, driving CONTROL directly with a GPIO suffices. The TCR2EE27,LM(CT) accepts 0–5.5 V control voltage, with valid ON threshold ≥1.0 V and OFF threshold ≤0.4 V.

What ceramic capacitor specifications are validated for TCR2EE27,LM(CT)?

Toshiba validates the TCR2EE27,LM(CT) with CIN ≥ 0.1 μF and COUT ≥ 1.0 μF X5R/X7R ceramic capacitors, specifying ESR < 10 Ω for stability. These values are confirmed in the Application Note and Electrical Characteristics tables. Larger COUT (e.g., 2.2 μF) further improves load transient response, while smaller CIN may cause instability under fast input transients. The TCR2EE27,LM(CT) does not require specific capacitor voltage rating beyond standard 6.3 V or 10 V ceramics for ≤5.5 V input.

How does the auto-discharge function behave in TCR2EE27,LM(CT)?

When the CONTROL pin is driven LOW (≤0.4 V), the TCR2EE27,LM(CT) disables the pass transistor and activates an internal discharge switch between VOUT and GND. This rapidly pulls VOUT to near-zero volts-typically within microseconds-eliminating residual charge that could interfere with downstream power sequencing or cause latch-up in powered-off circuit blocks. The discharge path remains active until CONTROL returns HIGH. This behavior is intrinsic to the TCR2EE27,LM(CT) design and requires no external components.