Toshiba Semiconductor and Storage TCR2EN13,LF(SE

Overview

TCR2EN13,LF(SE) from Toshiba Electronic Devices & Storage Corporation is a 1.3 V fixed-output CMOS low-dropout linear regulator in an ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm), delivering up to 200 mA with 330 mV typical dropout at 150 mA load, ±1.0% output accuracy (for VOUT ≥ 1.8 V; 1.3 V variant specified as ±18 mV), and 35 µV_rms output noise. It features on/off control input, auto-discharge, overcurrent protection, and supports ceramic capacitors (C_IN = 0.1 µF, C_OUT = 1.0 µF), making it suitable for space-constrained portable power rails in cellular handsets and wearable sensors.

For engineers reviewing the TCR2EN13,LF(SE) datasheet, TCR2EN13,LF(SE) pinout, TCR2EN13,LF(SE) application, or TCR2EN13,LF(SE) equivalent, key selection criteria include its 1.3 V fixed output, 330 mV dropout at 150 mA, 35 µV_rms noise performance, SDFN4/SDFN4E footprint compatibility, and fast load transient response (±55 mV) - all critical for battery-powered microcontroller core voltage regulation and RF subsystem biasing.

Technical Context

The TCR2EN13,LF(SE) implements a CMOS-based LDO architecture with integrated P-channel pass transistor, enabling low quiescent current (35 µA typ. at zero load) and high ripple rejection (73 dB typ. at 1 kHz). Its control logic accepts TTL-compatible ON/OFF signals (V_CT(ON) ≥ 1.0 V, V_CT(OFF) ≤ 0.4 V) and activates internal discharge path when disabled.

Designed for stable operation with minimal external components, it operates across −40°C to +85°C ambient temperature, supports input voltages from 1.5 V to 5.5 V, and maintains output regulation under 1 mA–150 mA dynamic load steps with only ±55 mV deviation when using a 1.0 µF ceramic output capacitor.

Key Specifications

Pinout & Package

TCR2EN13,LF(SE) is housed in the ultra-compact SDFN4/SDFN4E plastic mold package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight), featuring a bottom-exposed thermal pad that must be connected to GND for optimal thermal performance and EMI suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TCR2EN13,LF(SE), the XC6210B132MR-G offers similar voltage and current specs but requires external enable circuitry and occupies significantly more PCB area, while the BD3508HUV-ME2 delivers superior noise and current headroom at the cost of footprint and lack of integrated control - making TCR2EN13,LF(SE) optimal for ultra-dense, digitally controlled portable systems.

Availability

TCR2EN13,LF(SE) is available at Aetrix Electronics and suitable for smartphone baseband supplies, wearable sensor nodes, medical patch monitors, and industrial wireless transmitters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TCR2EN13,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 and manufactures high-reliability semiconductor solutions, with expertise in power management, logic, memory, and discrete devices for consumer, industrial, and automotive markets.

The TCR2EN series belongs to Toshiba's CMOS Linear Integrated Circuit product line, engineered specifically for ultra-low-power, space-constrained portable electronics requiring high PSRR, fast transient response, and minimal external components.

FAQ

What is the guaranteed output voltage accuracy for TCR2EN13,LF(SE) at 50 mA load?

The TCR2EN13,LF(SE) guarantees output voltage accuracy of ±18 mV at I_OUT = 50 mA, as specified in the Electrical Characteristics table (page 4). This corresponds to ±1.38% tolerance for the 1.3 V nominal output, distinct from the ±1.0% spec applied to variants ≥1.8 V. The TCR2EN13,LF(SE) achieves this via laser-trimmed internal reference and feedback network.

Does TCR2EN13,LF(SE) require an external pull-up resistor on the CONTROL pin?

No, TCR2EN13,LF(SE) includes an internal pull-down resistor on the CONTROL pin, ensuring a defined LOW state when left unconnected. This eliminates the need for external biasing components and simplifies GPIO interfacing. The TCR2EN13,LF(SE) activates regulation when CONTROL voltage exceeds 1.0 V and disables it below 0.4 V.

Can TCR2EN13,LF(SE) operate with input voltage as low as 1.5 V?

Yes, TCR2EN13,LF(SE) supports minimum input voltage of 1.5 V per Absolute Maximum Ratings (page 2), enabling use with single-cell lithium batteries down to 1.5 V cutoff. At 1.5 V input and 1.3 V output, the effective headroom is 200 mV - sufficient given its 330 mV typical dropout at 150 mA, though full 200 mA load capability requires ≥1.63 V input.

What is the thermal pad connection requirement for TCR2EN13,LF(SE)?

The center thermal pad of the TCR2EN13,LF(SE) SDFN4/SDFN4E package must be soldered to a GND copper pour on the PCB to ensure adequate heat dissipation and EMI shielding. Per Package Dimensions (pages 14–15), the pad is electrically connected to GND internally; leaving it unconnected degrades thermal resistance by >30 °C/W and increases output noise susceptibility.

Is TCR2EN13,LF(SE) compatible with 0.1 µF ceramic input capacitors?

Yes, TCR2EN13,LF(SE) is explicitly designed for use with 0.1 µF ceramic input capacitors, as confirmed in Application Note (page 5) and Features list. These capacitors provide sufficient high-frequency bypassing for the internal CMOS control loop, and their low ESR (<10 Ω recommended) ensures stability without requiring larger bulk capacitance.