Toshiba Semiconductor and Storage TCR2EE28,LM(CT

Overview

TCR2EE28,LM(CT) from Toshiba Electronic Devices & Storage Corporation is a 2.8 V fixed-output, 200 mA CMOS low dropout regulator with fast load transient response (±60 mV), low dropout voltage (180 mV at 150 mA), and ultra-low output noise (35 μV_rms). It features on/off control input, overcurrent protection, auto-discharge function, and supports ceramic input/output capacitors (0.1 μF / 1.0 μF). Designed for analog and RF power supply rails in portable instrumentation and wireless modules.

For engineers reviewing the TCR2EE28,LM(CT) datasheet, TCR2EE28,LM(CT) pinout, TCR2EE28,LM(CT) application, or TCR2EE28,LM(CT) equivalent, key selection criteria include dropout performance at 150 mA, ±1.0% output accuracy (≥1.8 V), 73 dB ripple rejection at 1 kHz, 35 μA quiescent current, and compatibility with SOT-553 (ESV) packaging for space-constrained PCB layouts.

Technical Context

The TCR2EE28,LM(CT) implements a CMOS-based LDO architecture with integrated P-channel pass transistor, enabling low dropout and minimal bias current. Its control logic accepts TTL/CMOS-compatible ON/OFF signals (V_CT(OFF) ≤ 0.4 V, V_CT(ON) ≥ 1.0 V) and activates internal auto-discharge when disabled.

Stability is ensured using ceramic capacitors only (C_IN ≥ 0.1 μF, C_OUT ≥ 1.0 μF, ESR < 10 Ω), with no external compensation required. Load transient response is optimized via internal error amplifier bandwidth and output stage drive strength, achieving ±60 mV deviation during 1 mA ↔ 150 mA step changes with 1.0 μF output capacitance.

Key Specifications

Pinout & Package

TCR2EE28,LM(CT) uses the ESV (SOT-553) package: 1.6 mm × 1.6 mm × 0.55 mm, 5-pin surface-mount, tape-and-reel format (LM(CT)). Weight is 3.0 mg (typ.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EE28,LM(CT), TCS2028-2.8V offers marginally lower dropout in a larger package, while MCP1700T-2802E/MB delivers lower noise but omits auto-discharge - making TCR2EE28,LM(CT) optimal for space-constrained, fast-sequencing systems needing both ultra-low noise and controlled shutdown behavior.

Availability

TCR2EE28,LM(CT) is available at Aetrix Electronics and suitable for portable RF transceivers, industrial sensor signal chains, wearable health monitors, and smart home edge nodes requiring stable component supply with tight parametric consistency and long-term manufacturability.

Supply support for TCR2EE28,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 expertise in analog, power, and logic ICs.

The TCR2EE series targets space- and power-sensitive applications demanding high-accuracy, low-noise, and fast-transient LDOs in ultra-small packages - specifically addressing portable electronics and IoT endpoint design constraints.

FAQ

What is the guaranteed output voltage tolerance for TCR2EE28,LM(CT) across temperature and load?

The TCR2EE28,LM(CT) guarantees ±1.0% output voltage accuracy for V_OUT ≥ 1.8 V, including over the full operating temperature range (−40°C to +85°C) and load current (1 mA to 150 mA). This specification is verified per Toshiba's Electrical Characteristics table and applies directly to the 2.8 V output variant.

Does TCR2EE28,LM(CT) require an external pull-down resistor on the CONTROL pin?

No - TCR2EE28,LM(CT) integrates an internal pull-down between CONTROL and GND. When left unconnected, the pin defaults to LOW, disabling the regulator and activating auto-discharge. An external resistor is unnecessary unless active driving from an open-drain source is used.

Can TCR2EE28,LM(CT) operate with input voltages below 2.8 V?

Yes - TCR2EE28,LM(CT) supports input voltages as low as 1.5 V. However, regulation is only maintained when VIN ≥ V_OUT + V_DO. At 150 mA load, V_DO = 180 mV (typ.), so minimum functional input is ~2.98 V. Below that, output drops linearly with input.

Is the NC pin on TCR2EE28,LM(CT) safe to connect to ground or leave floating?

The NC pin on TCR2EE28,LM(CT) is internally unconnected and must remain floating - it must not be tied to GND, VIN, or any other node. Connecting it may cause unpredictable behavior or damage. PCB layout should omit any trace or pad connection to this pin.

What ceramic capacitor specifications are validated for stable operation of TCR2EE28,LM(CT)?

TCR2EE28,LM(CT) is validated with X5R/X7R ceramic capacitors: C_IN ≥ 0.1 μF (placed ≤2 mm from VIN/GND) and C_OUT ≥ 1.0 μF (placed adjacent to VOUT/GND), both with ESR < 10 Ω. These values ensure stability without external compensation across all operating conditions.