Toshiba Semiconductor and Storage TCR2EE115,LM(CT

Overview

TCR2EE115,LM(CT from Toshiba Electronic Devices & Storage Corporation is a 1.15 V fixed-output CMOS low dropout (LDO) regulator delivering up to 200 mA with fast load transient response (±60 mV), low dropout voltage (440 mV typ. at 150 mA), and low output noise (35 μVrms typ. at 2.5 V). It features on/off control, overcurrent protection, and auto-discharge for analog/RF power rails in portable instrumentation and sensor nodes.

For engineers reviewing the TCR2EE115,LM(CT) datasheet, TCR2EE115,LM(CT) pinout, TCR2EE115,LM(CT) application, or TCR2EE115,LM(CT) equivalent, key selection criteria include dropout performance at 1.15 V output, ceramic capacitor compatibility (CIN ≥ 0.1 μF, COUT ≥ 1.0 μF), ±1.0% accuracy for VOUT ≥ 1.8 V (note: 1.15 V falls outside this spec), and thermal derating on FR4 boards.

Technical Context

The TCR2EE115,LM(CT) implements a CMOS-based LDO architecture with integrated P-channel pass transistor, enabling low quiescent current (35 μA typ.) and high ripple rejection (73 dB typ. at 1 kHz). Its control input supports active-high enable logic with defined ON/OFF thresholds (VCT(ON) ≥ 1.0 V, VCT(OFF) ≤ 0.4 V).

Designed for stable operation with ceramic output capacitors, it requires no external compensation and achieves fast transient recovery via internal error amplifier bandwidth optimization-evidenced by ±60 mV output deviation during 1 mA ↔ 150 mA load steps with 1.0 μF COUT.

Key Specifications

Pinout & Package

TCR2EE115,LM(CT) uses the ESV (SOT-553) package: 1.6 mm × 1.6 mm × 0.55 mm, 5-pin surface-mount, weight 3.0 mg (typ.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EE115,LM(CT), TCS2011-1.15V trades efficiency for legacy footprint support, while XC6219B112MR-G offers superior dropout and IQ but lacks auto-discharge and requires pinout redesign-making TCR2EE115,LM(CT) optimal for space-constrained, fast-transient, and auto-shutdown-sensitive designs.

Availability

TCR2EE115,LM(CT) is available at Aetrix Electronics and suitable for portable medical sensors, RF front-end biasing, industrial IoT edge nodes, and low-power microcontroller cores requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TCR2EE115,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 energy efficiency and miniaturization.

The TCR2EE series belongs to Toshiba's CMOS LDO portfolio targeting ultra-low-noise, fast-transient power management in space-constrained portable electronics-specifically engineered for analog/RF subsystems where supply integrity directly impacts signal fidelity.

FAQ

What is the dropout voltage specification for TCR2EE115,LM(CT) at full load?

The TCR2EE115,LM(CT) has a typical dropout voltage of 440 mV at IOUT = 150 mA and 25°C, with a maximum of 670 mV under worst-case conditions. This value is confirmed in the Dropout Voltage table (Page 5 of datasheet) for 1.1 V and 1.15 V output variants. The low dropout enables reliable operation from inputs as low as 1.59 V, making TCR2EE115,LM(CT) suitable for single-cell battery systems where headroom is constrained.

Does TCR2EE115,LM(CT) support ceramic output capacitors, and what are the minimum values?

Yes, TCR2EE115,LM(CT) is fully compatible with ceramic output capacitors. The datasheet specifies a minimum COUT of 1.0 μF and minimum CIN of 0.1 μF, both using X5R/X7R dielectrics. Toshiba recommends ESR < 10 Ω for stability. This eliminates the need for larger, less reliable tantalum or aluminum electrolytic capacitors-reducing board area and improving long-term reliability in TCR2EE115,LM(CT)-based designs.

How does the CONTROL pin function on TCR2EE115,LM(CT), and what happens when it is left unconnected?

The CONTROL pin on TCR2EE115,LM(CT) is an active-high enable input with VCT(ON) ≥ 1.0 V and VCT(OFF) ≤ 0.4 V. An internal pull-down resistor connects CONTROL to GND, ensuring the device remains disabled if the pin is left floating. When pulled HIGH, regulation engages; when pulled LOW, output shuts down and the auto-discharge circuit actively discharges VOUT through an internal path. This behavior is explicitly documented in the Absolute Maximum Ratings and Electrical Characteristics tables.

What is the output voltage accuracy of TCR2EE115,LM(CT), and how does it differ from higher-output variants?

TCR2EE115,LM(CT) has an output voltage accuracy of ±18 mV (min/max) at IOUT = 50 mA and 25°C, as specified for VOUT < 1.8 V in the Electrical Characteristics table. This differs from variants with VOUT ≥ 1.8 V, which guarantee ±1.0% accuracy. The ±18 mV tolerance corresponds to approximately ±1.6% of 1.15 V, reflecting tighter absolute error bounds optimized for low-voltage precision analog rails rather than percentage-based specs.

Can TCR2EE115,LM(CT) be used in automotive applications, and what temperature range does it support?

TCR2EE115,LM(CT) is rated for operation from −40°C to +85°C, meeting standard industrial temperature requirements. While it is not AEC-Q200 qualified or specified for under-hood automotive use, it is suitable for automotive cabin applications such as infotainment peripherals, dashboard sensors, and telematics modules where ambient temperatures remain within its operational range. Always verify thermal design margins using the PD–Ta curves in the Application Note section when deploying TCR2EE115,LM(CT) in thermally demanding enclosures.