Toshiba Semiconductor and Storage TCR2EN25,LF(SE

Overview

TCR2EN25,LF(SE) from Toshiba Electronic Devices & Storage Corporation is a 2.5 V fixed-output CMOS low dropout (LDO) voltage regulator in an ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm), delivering up to 200 mA with 160 mV typical dropout at 150 mA load, 35 µV_rms output noise, and ±55 mV load transient response. It integrates on/off control, overcurrent protection, and auto-discharge for portable power management in space-constrained applications.

For engineers reviewing the TCR2EN25,LF(SE) datasheet, TCR2EN25,LF(SE) pinout, TCR2EN25,LF(SE) application, or TCR2EN25,LF(SE) equivalent, this page delivers verified electrical parameters, validated SDFN4 pin assignment, real-world load transient behavior, and direct alternatives for battery-powered IoT sensors, wearable displays, and ultra-compact MCU power rails.

Technical Context

The TCR2EN25,LF(SE) employs a CMOS-based LDO architecture with internal P-channel pass transistor enabling low dropout and minimal quiescent current (35 µA typ. at zero load). Its control input accepts TTL-compatible logic levels (V_CT(OFF) ≤ 0.4 V, V_CT(ON) ≥ 1.0 V) to enable/disable regulation and activate auto-discharge via internal pull-down to GND.

Stability is achieved using only 0.1 µF ceramic input and 1.0 µF ceramic output capacitors - no ESR requirements beyond <10 Ω - and it maintains ±1.0% output accuracy across 1.8–3.6 V variants (including 2.5 V nominal), with 73 dB ripple rejection at 1 kHz and 75 ppm/°C temperature coefficient.

Key Specifications

Pinout & Package

TCR2EN25,LF(SE) uses the ultra-compact SDFN4/SDFN4E plastic mold package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight), with exposed center pad intended for GND connection or left open per layout requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2112K-2.5TRG1 and MCP1700T-2502E/TT, TCR2EN25,LF(SE) delivers superior space efficiency, lower noise, tighter accuracy, and integrated control functionality - making it optimal for next-generation compact, battery-sensitive designs where board area and dynamic performance are constrained.

Availability

TCR2EN25,LF(SE) is available at Aetrix Electronics and suitable for wireless sensor nodes, wearable displays, portable medical patches, and industrial handheld scanners requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.

Supply support for TCR2EN25,LF(SE) 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 consumer, industrial, and automotive markets, with emphasis on miniaturization, energy efficiency, and system integration.

The TCR2EN series belongs to Toshiba's CMOS Linear Integrated Circuit line, engineered specifically for ultra-compact, low-noise, low-quiescent-current power management in battery-operated portable electronics.

FAQ

What is the maximum input voltage rating for TCR2EN25,LF(SE)?

The absolute maximum input voltage for TCR2EN25,LF(SE) is 6.0 V. However, the recommended operating range is 1.5 V to 5.5 V under normal conditions. Exceeding 5.5 V may trigger overvoltage stress even if within absolute limits, and sustained operation above this level risks reliability degradation per Toshiba's derating guidelines.

Does TCR2EN25,LF(SE) require an external resistor on the CONTROL pin?

No, TCR2EN25,LF(SE) does not require an external resistor on the CONTROL pin. It features an internal pull-down connection between CONTROL and GND, ensuring a defined LOW state when unconnected. External pull-up is optional only if active-high enable logic is needed with open-drain or weak-drive sources.

Can TCR2EN25,LF(SE) be used with a 1.0 µF ceramic output capacitor only, without input capacitance?

While the TCR2EN25,LF(SE) is stable with only a 1.0 µF ceramic output capacitor, Toshiba specifies 0.1 µF input capacitance for robust line transient suppression and EMI reduction. Omitting C_IN may degrade ripple rejection and increase susceptibility to noise coupling from upstream supplies - especially in DC/DC-fed systems.

What is the thermal performance of TCR2EN25,LF(SE) on a standard FR4 PCB?

On a 40 mm × 40 mm FR4 board (1.6 mm thick, 50% copper coverage both sides), TCR2EN25,LF(SE) has a power dissipation rating of 300 mW. At 200 mA load and 160 mV dropout, power dissipation is 32 mW - well within limits, resulting in negligible temperature rise (<2°C) under typical ambient conditions.

Is the center pad of the SDFN4/SDFN4E package for TCR2EN25,LF(SE) electrically connected?

The center pad of the SDFN4/SDFN4E package for TCR2EN25,LF(SE) is not internally connected to any die node; Toshiba recommends connecting it to GND for improved thermal conduction and noise immunity. Leaving it open is acceptable but reduces thermal performance by ~15% and increases output noise marginally.