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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Toshiba Semiconductor and Storage TCR2EF285,LM(CT

Name: TCR2EF285,LM(CT
Brand: Toshiba Semiconductor and Storage
SKU: TCR2EF285,LM(CT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TCR2EF285,LM(CT

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SC-74A, SOT-753

Datasheet:: TCR2EF285,LM(CT.pdf

Description:: IC REG LINEAR 2.85V 200MA SMV

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TCR2EF285,LM(CT) from Toshiba Electronic Devices & Storage Corporation is a 2.85 V fixed-output CMOS low dropout (LDO) regulator with on/off control input, delivering up to 200 mA output current, 180 mV typical dropout at 150 mA, 35 μV_rms output noise, and ±60 mV load transient response - designed for analog and RF power supply rails in portable and space-constrained systems.

For engineers reviewing the TCR2EF285,LM(CT) datasheet, TCR2EF285,LM(CT) pinout, TCR2EF285,LM(CT) application, or TCR2EF285,LM(CT) equivalent, key selection criteria include fast load transient performance, ceramic capacitor compatibility (C_IN = 0.1 μF, C_OUT = 1.0 μF), ±1.0% output accuracy (for V_OUT ≥ 1.8 V), Auto-discharge function, and SOT-553 (ESV) package footprint.

Technical Context

The TCR2EF285,LM(CT) employs a CMOS-based LDO architecture with integrated overcurrent protection and an active pull-down circuit between CONTROL and GND. Its fast transient response stems from internal compensation optimized for 1.0 μF ceramic output capacitance.

It operates across −40°C to +85°C ambient temperature, supports input voltages from 1.5 V to 5.5 V, and achieves 73 dB ripple rejection at 1 kHz - enabling stable regulation in noisy mixed-signal environments where analog/RF ICs demand clean, low-noise biasing.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.85 V ±1.0% (guaranteed for stable analog/RF biasing)
Max Output Current	200 mA DC (supports moderate-power sensors, ADCs, and RF front-ends)
Dropout Voltage	180 mV typ. at I_OUT = 150 mA (enables operation down to VIN = 3.03 V)
Output Noise	35 μV_rms (10 Hz–100 kHz) - preserves SNR in precision analog stages
Load Transient Response	±60 mV (1 mA ↔ 150 mA step, C_OUT = 1.0 μF) - minimizes voltage sag during burst-mode operation
Quiescent Current	35 μA typ. (I_OUT = 0 mA) - extends battery life in always-on subsystems
Ripple Rejection	73 dB typ. at 1 kHz - suppresses switching noise from upstream DC/DC converters

Pinout & Package

TCR2EF285,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.), optimized for high-density PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Input Power Supply	Accepts 1.5–5.5 V; requires ≥0.1 μF ceramic decoupling close to pin
VOUT	Regulated Output	Delivers stable 2.85 V; requires ≥1.0 μF ceramic output capacitor for stability
GND	Ground Reference	Common return path for input, output, and control circuits; must be low-impedance
CONTROL	Enable/Disable Input	Logic-high (≥1.0 V) enables regulation; logic-low (≤0.4 V) disables output and activates Auto-discharge
NC	No Connect	Internally unconnected; must remain floating or grounded per layout best practice

Key Features

Feature	Design Value
Auto-discharge Function	Actively discharges VOUT when CONTROL = LOW, preventing residual voltage hold-up in power-gated domains
Ceramic Capacitor Compatibility	Stable with C_IN = 0.1 μF and C_OUT = 1.0 μF (ESR < 10 Ω), eliminating need for bulk tantalum or electrolytic caps
Low Quiescent Current	35 μA typ. at zero load - critical for battery-backed real-time clocks and sensor wake-up circuits
High Accuracy Output	±1.0% tolerance (2.85 V) ensures consistent biasing for ADC references and RF synthesizers
Overcurrent Protection	Current-limiting folds back under overload, protecting both regulator and downstream circuitry

Applications

Wireless Sensor Node Power	Portable Audio Codec Bias
Use Scenario: Battery-powered IoT sensor node with BLE radio, MEMS accelerometer, and low-power MCU. IC Role / Device Role / Timing Role: Primary 2.85 V LDO supplying analog front-end and RF transceiver, enabled via microcontroller GPIO. Use Value: Fast load transient response prevents RF packet corruption during transmit bursts; low noise avoids ADC quantization errors.	Use Scenario: Compact Bluetooth speaker with DAC, Class-D amplifier, and audio codec. IC Role / Device Role / Timing Role: Clean 2.85 V rail for audio codec analog section and reference voltage generation. Use Value: 35 μV_rms noise floor preserves dynamic range; ±1.0% accuracy maintains THD+N spec across temperature.
Medical Wearable Front-End	Industrial Signal Conditioning Module
Use Scenario: ECG patch with ultra-low-power analog signal chain and wireless telemetry. IC Role / Device Role / Timing Role: Dedicated LDO for op-amp instrumentation amplifiers and SAR ADC driver stage. Use Value: Low dropout enables operation from single-cell Li-ion (3.0–4.2 V); Auto-discharge eliminates leakage paths during sleep mode.	Use Scenario: DIN-rail mounted analog input module with isolated 4–20 mA receivers and precision ADC. IC Role / Device Role / Timing Role: Local 2.85 V supply for signal conditioning op-amps and reference buffers. Use Value: 73 dB ripple rejection isolates analog section from noisy industrial DC/DC supplies; −40°C to +85°C rating ensures field reliability.

Wireless Sensor Node Power

Portable Audio Codec Bias

Use Scenario: Battery-powered IoT sensor node with BLE radio, MEMS accelerometer, and low-power MCU.

IC Role / Device Role / Timing Role: Primary 2.85 V LDO supplying analog front-end and RF transceiver, enabled via microcontroller GPIO.

Use Value: Fast load transient response prevents RF packet corruption during transmit bursts; low noise avoids ADC quantization errors.

Use Scenario: Compact Bluetooth speaker with DAC, Class-D amplifier, and audio codec.

IC Role / Device Role / Timing Role: Clean 2.85 V rail for audio codec analog section and reference voltage generation.

Use Value: 35 μV_rms noise floor preserves dynamic range; ±1.0% accuracy maintains THD+N spec across temperature.

Medical Wearable Front-End

Industrial Signal Conditioning Module

Use Scenario: ECG patch with ultra-low-power analog signal chain and wireless telemetry.

IC Role / Device Role / Timing Role: Dedicated LDO for op-amp instrumentation amplifiers and SAR ADC driver stage.

Use Value: Low dropout enables operation from single-cell Li-ion (3.0–4.2 V); Auto-discharge eliminates leakage paths during sleep mode.

Use Scenario: DIN-rail mounted analog input module with isolated 4–20 mA receivers and precision ADC.

IC Role / Device Role / Timing Role: Local 2.85 V supply for signal conditioning op-amps and reference buffers.

Use Value: 73 dB ripple rejection isolates analog section from noisy industrial DC/DC supplies; −40°C to +85°C rating ensures field reliability.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TCS2EF285,LM(CT)	Same pinout, identical electrical specs, but uses SMV (SOT-25) package (2.8 mm × 2.9 mm) instead of ESV (SOT-553).	Requires larger PCB area; better thermal dissipation (PD = 580 mW vs. 320 mW at board mount).	Select when thermal margin > size constraint; not drop-in for ESV footprints.
XC6206P285MR-G	2.85 V fixed LDO, 150 mA max, 250 mV dropout (typ. @ 100 mA), no Auto-discharge, SOT-25 only.	Lacks CONTROL pin functionality and fast transient response (±100 mV typical); lower noise (20 μV_rms).	Choose for cost-sensitive, non-power-gated designs where enable control and rapid discharge are unnecessary.

Compared with TCR2EF285,LM(CT), the TCS2EF285,LM(CT) offers identical regulation performance in a larger package with higher thermal capability, while the XC6206P285MR-G trades control flexibility and transient speed for lower cost and slightly lower noise - making TCR2EF285,LM(CT) optimal for compact, dynamically powered analog/RF systems.

Availability

TCR2EF285,LM(CT) is available at Aetrix Electronics and suitable for wireless sensor nodes, portable audio devices, medical wearables, and industrial signal conditioning modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TCR2EF285,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, with core expertise in power management, analog ICs, and discrete devices for industrial, automotive, and consumer markets.

The TCR2EF series targets space-constrained, low-noise power delivery in portable and battery-operated systems - emphasizing fast transient response, ceramic capacitor compatibility, and ultra-small footprint without sacrificing accuracy or protection features.

FAQ

What is the guaranteed output voltage tolerance for TCR2EF285,LM(CT)?

The TCR2EF285,LM(CT) guarantees ±1.0% output voltage accuracy for V_OUT ≥ 1.8 V, meaning its 2.85 V nominal output remains within 2.8215 V to 2.8785 V across operating conditions (T_j = 25°C, I_OUT = 50 mA). This tolerance applies across the full −40°C to +85°C ambient temperature range and ensures reliable biasing for precision analog components.

Does TCR2EF285,LM(CT) require external capacitors, and what values are recommended?

Yes, TCR2EF285,LM(CT) requires external capacitors: a minimum 0.1 μF ceramic capacitor at VIN and a minimum 1.0 μF ceramic capacitor at VOUT. Toshiba specifies ESR < 10 Ω for stability. These values are validated for fast load transient response (±60 mV) and low-noise operation (35 μV_rms). Larger C_OUT improves ripple rejection but does not degrade stability.

How does the CONTROL pin function in TCR2EF285,LM(CT)?

The CONTROL pin on TCR2EF285,LM(CT) enables or disables regulation: applying ≥1.0 V turns the LDO ON; ≤0.4 V turns it OFF and activates Auto-discharge to rapidly deplete VOUT capacitance. When left open, it defaults to OFF due to internal pull-down. This feature supports precise power sequencing and zero-quiescent-current sleep states in battery-powered systems.

What is the maximum allowable input voltage for TCR2EF285,LM(CT)?

The absolute maximum input voltage for TCR2EF285,LM(CT) is 6.0 V. However, the recommended operating range is 1.5 V to 5.5 V. Exceeding 5.5 V risks violating safe operating area limits, especially under high ambient temperatures or heavy load - potentially triggering thermal shutdown or accelerating parametric drift. Always maintain VIN ≤ VOUT + 1.0 V for optimal dropout and efficiency.

Is TCR2EF285,LM(CT) compatible with lead-free reflow soldering processes?

Yes, TCR2EF285,LM(CT) in ESV (SOT-553) package is rated for standard lead-free reflow profiles (JEDEC J-STD-020), including peak temperatures up to 260°C. The device complies with RoHS Directive 2011/65/EU and is halogen-free. Refer to Toshiba's "Mounting and Handling Instructions" for recommended soak time, ramp rates, and cooling profiles to prevent package cracking or bond wire damage.

TCR2EF285,LM(CT Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: TCR2EF

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 2.85V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.23V @ 150mA

Current - Output:: 200mA

Current - Quiescent (Iq):: 60 µA

Current - Supply (Max):: -

PSRR:: 73dB (1kHz)

Control Features:: Enable

Protection Features:: Over Current

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMV

TCR2EF285,LM(CT FAQ

1.How can I place an order for TCR2EF285,LM(CT through Aetrix?

Please submit a Request for Quotation (RFQ) for TCR2EF285,LM(CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TCR2EF285,LM(CT reliable?

The price and inventory of TCR2EF285,LM(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2EF285,LM(CT is usually 5 days.

3.What payment methods are accepted for TCR2EF285,LM(CT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EF285,LM(CT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TCR2EF285,LM(CT?

TCR2EF285,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TCR2EF285,LM(CT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TCR2EF285,LM(CT?

For technical support, including TCR2EF285,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EF285,LM(CT requirements.

6.How does Aetrix verify that TCR2EF285,LM(CT is sourced from the original manufacturer or authorized distributors?

All TCR2EF285,LM(CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TCR2EF285,LM(CT meets industry standards.

7.What is the process for return or replacement of TCR2EF285,LM(CT?

All TCR2EF285,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EF285,LM(CT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TCR2EF285,LM(CT part is unused and in its original packaging.

Return procedure for TCR2EF285,LM(CT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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