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Toshiba Semiconductor and Storage TCR2EE31,LM(CT
- Part No.:
- TCR2EE31,LM(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SOT-553
- Datasheet:
-
TCR2EE31,LM(CT.pdf
- Description:
- IC REG LINEAR 3.1V 200MA ESV
- Quantity:
- Payment:
- Shipping:
Inventory:1,883
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Product details
Overview
TCR2EE31,LM(CT from Toshiba Electronic Devices & Storage Corporation is a 3.1 V fixed-output CMOS low dropout regulator delivering up to 200 mA with 150 mV typical dropout (at IOUT = 150 mA), 35 μVrms output noise, and ±60 mV load transient response (1 mA ⇔ 150 mA, COUT = 1.0 μF). It integrates on/off control, overcurrent protection, and auto-discharge for analog/RF power rails in portable instrumentation and sensor signal chains.
For engineers reviewing the TCR2EE31,LM(CT datasheet, TCR2EE31,LM(CT pinout, TCR2EE31,LM(CT application, or TCR2EE31,LM(CT equivalent, key selection criteria include dropout voltage at 150 mA, output accuracy (±1.0 % for VOUT ≥ 1.8 V), quiescent current (35 μA typ.), ripple rejection (73 dB typ. at 1 kHz), and compatibility with 1.0 μF ceramic output capacitors.
Technical Context
The TCR2EE31,LM(CT uses a CMOS pass transistor architecture enabling ultra-low quiescent current and fast load transient recovery without external compensation. Its internal control loop stabilizes output under rapid current steps while maintaining tight regulation across −40°C to +85°C ambient.
It features an active-low CONTROL pin with defined ON/OFF thresholds (VCT(ON) ≥ 1.0 V, VCT(OFF) ≤ 0.4 V), pull-down connection between CONTROL and GND, and auto-discharge functionality that rapidly discharges VOUT when disabled-critical for power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.1 V ±1.0 % (guaranteed for stable biasing of RF LNA stages and precision ADC references) |
| Dropout voltage | 150 mV typ. at 150 mA (enables operation from 3.25 V input when VOUT = 3.1 V) |
| Output noise | 35 μVrms typ. (10 Hz–100 kHz) - low enough to avoid degrading SNR in 16-bit SAR ADCs |
| Load transient response | ±60 mV max. step deviation (1 mA ⇔ 150 mA, COUT = 1.0 μF) - supports burst-mode digital loads |
| Quiescent current | 35 μA typ. at zero load - extends battery life in always-on sensor nodes |
| Ripple rejection | 73 dB typ. at 1 kHz - suppresses switching noise from upstream DC/DC converters |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded applications |
Pinout & Package
TCR2EE31,LM(CT is packaged in ESV (SOT-553), a 1.6 mm × 1.6 mm × 0.55 mm ceramic package with 5 terminals and 3.0 mg typical weight, optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.5–5.5 V; requires ≥0.1 μF ceramic bypass capacitor close to pin |
| VOUT | Regulated output | Delivers 3.1 V ±1.0 %; stable with ≥1.0 μF ceramic capacitor (ESR < 10 Ω recommended) |
| GND | Ground reference | Common return path for VIN, VOUT, and CONTROL; must be low-impedance plane |
| CONTROL | Enable/disable input | Active-high logic: ≥1.0 V enables regulator; ≤0.4 V disables with auto-discharge activation |
| NC | No-connect terminal | Internally unconnected; must remain floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 150 mV typ. at 150 mA enables high-efficiency operation from single Li-ion or 3.3 V rail |
| Fast load transient response | ±60 mV deviation supports dynamic digital loads (e.g., BLE radio transmit bursts) without external compensation |
| Auto-discharge function | Actively discharges VOUT when CONTROL = LOW - eliminates hold-up time in power sequencing |
| Ceramic capacitor compatibility | Stable with 1.0 μF COUT (ESR < 10 Ω) - reduces BOM count and board area vs. tantalum alternatives |
| Overcurrent protection | Current-limiting foldback prevents thermal runaway during short-circuit events |
Applications
| Portable RF Transceivers | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Powering 2.4 GHz BLE transceiver ICs with burst-mode current draw (1 mA idle → 150 mA TX peak). IC Role / Device Role / Timing Role: Primary LDO supplying VDD_PA and VDD_SYNTH rails with sub-60 mV transient deviation. Use Value: Maintains RF output power stability and phase noise performance during TX enable transitions without requiring oversized output capacitance. |
Use Scenario: Biasing precision op-amps and 16-bit delta-sigma ADCs in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Clean 3.1 V analog supply decoupled from noisy digital domains. Use Value: 35 μVrms noise and 73 dB ripple rejection preserve ENOB > 15 bits in 100 kSPS acquisition. |
| Wearable Health Monitors | Automotive Cabin Sensors |
|
Use Scenario: Supplying optical heart-rate monitor (PPG) analog front-end with strict EMI constraints. IC Role / Device Role / Timing Role: Low-noise, low-quiescent regulator enabling <10 μA sleep mode with fast wake-up. Use Value: 35 μA quiescent current extends coin-cell lifetime beyond 12 months; auto-discharge ensures safe reset on power-off. |
Use Scenario: Powering MEMS accelerometers and humidity sensors in automotive cabin control modules. IC Role / Device Role / Timing Role: Secondary LDO fed from main 5 V domain, providing isolated 3.1 V rail meeting AEC-Q200 stress requirements. Use Value: −40°C to +85°C operation and 150 mV dropout ensure reliable startup at cold cranking (VIN ≥ 3.25 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCS2031-3.1V | Higher dropout (220 mV @ 150 mA); 50 μVrms noise; SOT-23-5 package | Larger footprint; less suitable for ultra-thin wearables | Choose if higher PSRR (80 dB @ 1 kHz) is prioritized over size and quiescent current |
| TPS7A2031PDBVR | Lower quiescent current (6.5 μA); same 3.1 V output; 1.2 mm × 1.2 mm DFN package | No auto-discharge; requires external discharge circuit for sequencing | Prefer when ultra-low IQ dominates design, and sequencing is handled externally |
Compared with TCR2EE31,LM(CT, TCS2031-3.1V trades smaller transient response for higher PSRR, while TPS7A2031PDBVR achieves lower IQ but lacks integrated auto-discharge-making TCR2EE31,LM(CT) optimal for space-constrained, sequenced analog/RF systems needing fast transient immunity and controlled shutdown.
Availability
TCR2EE31,LM(CT) is available at Aetrix Electronics and suitable for portable RF transceivers, industrial sensor signal conditioning, wearable health monitors, and automotive cabin sensors requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TCR2EE31,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 emphasis on power efficiency and signal integrity.
The TCR2EE series targets ultra-low-noise, fast-transient LDO applications in space-constrained analog and RF subsystems-specifically engineered for battery-powered instrumentation and wireless edge devices.
FAQ
What is the maximum input voltage rating for TCR2EE31,LM(CT)?
The absolute maximum input voltage for TCR2EE31,LM(CT) is 6.0 V. However, the recommended operating range is 1.5 V to 5.5 V per the datasheet's Operating Ranges table. Exceeding 5.5 V risks permanent damage even if within absolute maximum ratings, and thermal derating must be applied above 85°C ambient.
Does TCR2EE31,LM(CT) require an external discharge resistor for VOUT?
No. TCR2EE31,LM(CT) includes an integrated auto-discharge function activated when the CONTROL pin is pulled low. This internally discharges the VOUT capacitor without external components, ensuring rapid, controlled power-down in sequenced systems.
Can TCR2EE31,LM(CT) operate stably with a 1.0 μF ceramic output capacitor?
Yes. TCR2EE31,LM(CT) is explicitly characterized and guaranteed stable with a 1.0 μF ceramic capacitor (ESR < 10 Ω) on VOUT. The datasheet confirms this in both Electrical Characteristics and Application Note sections, eliminating need for larger or higher-ESR alternatives.
What is the output voltage accuracy specification for TCR2EE31,LM(CT)?
TCR2EE31,LM(CT) guarantees output voltage accuracy of ±1.0 % over temperature (−40°C to +85°C) and load (1 mA to 150 mA), applicable because its 3.1 V output exceeds the 1.8 V threshold specified in the Electrical Characteristics table for this tolerance band.
Is TCR2EE31,LM(CT) pin-compatible with other TCR2EE series variants?
Yes. All TCR2EE series devices in the ESV (SOT-553) package-including TCR2EE31,LM(CT)-share identical pinout (VIN, VOUT, GND, CONTROL, NC), allowing drop-in replacement across output voltages from 1.0 V to 5.0 V without PCB revision.
TCR2EE31,LM(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2EE
- Package/Case:
- SOT-553
- 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):
- 3.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 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:
- ESV
TCR2EE31,LM(CT FAQ
1.How can I place an order for TCR2EE31,LM(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EE31,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 TCR2EE31,LM(CT reliable?
The price and inventory of TCR2EE31,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 TCR2EE31,LM(CT is usually 5 days.
3.What payment methods are accepted for TCR2EE31,LM(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EE31,LM(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EE31,LM(CT?
TCR2EE31,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EE31,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 TCR2EE31,LM(CT?
For technical support, including TCR2EE31,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EE31,LM(CT requirements.
6.How does Aetrix verify that TCR2EE31,LM(CT is sourced from the original manufacturer or authorized distributors?
All TCR2EE31,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 TCR2EE31,LM(CT meets industry standards.
7.What is the process for return or replacement of TCR2EE31,LM(CT?
All TCR2EE31,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EE31,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 TCR2EE31,LM(CT part is unused and in its original packaging.
Return procedure for TCR2EE31,LM(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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