Toshiba Semiconductor and Storage TCR2EE305,LM(CT
- Part No.:
- TCR2EE305,LM(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SOT-553
- Datasheet:
-
TCR2EE305,LM(CT.pdf
- Description:
- IC REG LINEAR 3.05V 200MA ESV
- Quantity:
- Payment:

- Shipping:

Inventory:329
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Product details
Overview
TCR2EE305,LM(CT from Toshiba Electronic Devices & Storage Corporation is a 3.05 V fixed-output, 200 mA CMOS low dropout regulator with on/off control input, 150 mV typical dropout at 150 mA load, 35 μVrms output noise, and ±60 mV load transient response (1 mA ⇔ 150 mA, COUT = 1.0 μF). It delivers stable bias for RF front-ends and precision analog signal chains.
For engineers reviewing the TCR2EE305,LM(CT) datasheet, TCR2EE305,LM(CT) pinout, TCR2EE305,LM(CT) application, or TCR2EE305,LM(CT) equivalent, key selection criteria include dropout voltage at 3.05 V output, Auto-discharge functionality, ceramic capacitor compatibility (CIN ≥ 0.1 μF, COUT ≥ 1.0 μF), and ±1.0% output accuracy for 3.05 V ≥ 1.8 V.
Technical Context
The TCR2EE305,LM(CT) employs a CMOS pass transistor architecture enabling ultra-low quiescent current (35 μA typ. at IOUT = 0 mA) and fast load transient recovery without external compensation. Its internal overcurrent protection and Auto-discharge circuit actively discharge VOUT when CONTROL is pulled low.
It operates across −40°C to +85°C with input voltage range 1.5–5.5 V and supports ceramic output capacitors down to 1.0 μF. The CONTROL pin accepts 0–5.5 V logic-level signals, with defined ON/OFF thresholds (VCT(ON) ≥ 1.0 V, VCT(OFF) ≤ 0.4 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.05 V ±1.0% (guaranteed for VOUT ≥ 1.8 V) |
| Max Output Current | 200 mA DC - sufficient for powering RF transceivers or ADC/DAC bias rails |
| Dropout Voltage | 150 mV typ. at IOUT = 150 mA - enables operation with VIN as low as 3.20 V |
| Output Noise | 35 μVrms (10 Hz–100 kHz) - preserves SNR in sensitive analog/RF stages |
| Load Transient Response | ±60 mV deviation (1 mA ⇔ 150 mA step, COUT = 1.0 μF) - maintains regulation during burst-mode 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 |
Pinout & Package
TCR2EE305,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.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply connection | Accepts 1.5–5.5 V; requires ≥0.1 μF ceramic decoupling capacitor |
| VOUT | Regulated output voltage node | Delivers stable 3.05 V; requires ≥1.0 μF ceramic output capacitor for stability |
| GND | Ground reference terminal | Low-impedance return path; must be routed with minimal trace inductance |
| CONTROL | Enable/disable logic input | Active-high: ≥1.0 V turns regulator ON; ≤0.4 V forces shutdown and Auto-discharge |
| NC | No-connect terminal | Internally unconnected; must remain floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Actively discharges VOUT via internal FET when CONTROL is low - prevents residual voltage hold-up in power sequencing |
| Ceramic capacitor support | Stable with CIN = 0.1 μF and COUT = 1.0 μF - eliminates need for bulkier tantalum or aluminum electrolytics |
| Precision output accuracy | ±1.0% tolerance for 3.05 V output - ensures consistent biasing of voltage-sensitive components like PLLs or op-amps |
| Low-noise regulation | 35 μVrms integrated noise - avoids degradation of dynamic range in audio or RF receiver chains |
| Fast transient recovery | ±60 mV excursion under 150 mA load step - sustains regulation during digital core wake-up events |
Applications
| Wireless Sensor Node Power | RF Front-End Bias Supply |
|---|---|
|
Use Scenario: Battery-powered IoT sensor node with BLE radio and analog temperature/humidity sensing. IC Role / Device Role / Timing Role: Primary LDO supplying 3.05 V to MCU core, BLE transceiver, and precision ADC reference. Use Value: 35 μA quiescent current extends shelf life; Auto-discharge ensures clean power-down; ±1.0% accuracy maintains ADC linearity. |
Use Scenario: 2.4 GHz Wi-Fi or Zigbee transceiver module requiring clean local oscillator and PA bias. IC Role / Device Role / Timing Role: Low-noise 3.05 V rail for RF synthesizer VCO tuning and low-noise amplifier (LNA) bias. Use Value: 35 μVrms noise prevents phase noise degradation; 73 dB ripple rejection suppresses DC/DC switching artifacts. |
| Portable Medical Instrumentation | Industrial Analog Signal Conditioning |
|
Use Scenario: Handheld ECG monitor with high-resolution analog front-end and low-power microcontroller. IC Role / Device Role / Timing Role: Precision 3.05 V supply for instrumentation amplifiers and 24-bit sigma-delta ADC reference. Use Value: ±1.0% output accuracy directly impacts measurement fidelity; ±60 mV transient response prevents baseline shift during lead detection. |
Use Scenario: 4–20 mA loop-powered transmitter with isolated analog sensor interface and DAC output stage. IC Role / Device Role / Timing Role: Local 3.05 V rail for precision op-amps, voltage references, and DAC buffer stages. Use Value: 150 mV dropout allows operation from marginally regulated 3.3 V supply; ceramic capacitor compatibility simplifies layout in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, fast-transient LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCS2EF305,LM(CT) | Same 3.05 V output, but SMV (SOT-25) package (2.8 mm × 2.9 mm); higher thermal resistance; no Auto-discharge | Suitable where board space permits larger footprint and Auto-discharge is not required | Select if legacy SOT-25 layout reuse is prioritized over size or active discharge capability |
| XC6210B305MR-G | 3.05 V output, 200 mA, 120 mV dropout (typ.), but 65 μVrms noise and no Auto-discharge; requires 2.2 μF min COUT | Better dropout, worse noise; lacks controlled shutdown discharge path | Prefer when lowest possible dropout dominates over noise or sequencing control |
Compared with TCR2EE305,LM(CT), the TCS2EF305,LM(CT) trades miniaturization and Auto-discharge for easier thermal management in less dense layouts, while the XC6210B305MR-G offers lower dropout at the cost of higher noise and loss of active discharge - making TCR2EE305,LM(CT) optimal for compact, noise-sensitive, sequenced systems.
Availability
TCR2EE305,LM(CT) is available at Aetrix Electronics and suitable for wireless sensor nodes, RF front-end bias supplies, and portable medical instrumentation requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for TCR2EE305,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 automotive, industrial, and consumer applications, with expertise in analog, power, and logic ICs.
The TCR2EE series belongs to Toshiba's CMOS LDO regulator product line, engineered specifically for noise-critical, space-constrained applications such as RF modules and portable instrumentation where fast transient response and ultra-low quiescent current are essential.
FAQ
What is the guaranteed output voltage tolerance for TCR2EE305,LM(CT)?
The TCR2EE305,LM(CT) guarantees ±1.0% output voltage accuracy for its 3.05 V nominal output, as specified for all devices with VOUT ≥ 1.8 V. This tolerance holds across operating temperature (−40°C to +85°C), input voltage (1.5–5.5 V), and load current (1–150 mA), ensuring consistent performance in precision analog circuits.
Does TCR2EE305,LM(CT) support ceramic output capacitors?
Yes, TCR2EE305,LM(CT) is fully compatible with ceramic output capacitors. A minimum 1.0 μF X5R/X7R ceramic capacitor is required at VOUT, and a 0.1 μF ceramic capacitor is recommended at VIN. Toshiba specifies ESR < 10 Ω for optimal stability and transient response.
What happens to the output when the CONTROL pin is pulled low on TCR2EE305,LM(CT)?
When the CONTROL pin voltage drops to ≤0.4 V, the TCR2EE305,LM(CT) enters shutdown mode and activates its Auto-discharge function: an internal FET connects VOUT to GND, rapidly discharging the output capacitor. This ensures clean, controlled power-down without residual voltage affecting downstream circuitry.
What is the maximum allowable input voltage for TCR2EE305,LM(CT)?
The absolute maximum input voltage for TCR2EE305,LM(CT) is 6.0 V. However, the recommended operating input voltage 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 conditions.
How does TCR2EE305,LM(CT) perform under fast load transients?
The TCR2EE305,LM(CT) exhibits ±60 mV output deviation during a 1 mA to 150 mA load step (with 1.0 μF ceramic output capacitor), recovering within microseconds. This fast transient response is enabled by its CMOS architecture and internal compensation, making it suitable for powering burst-mode digital cores or RF transceivers without external stabilization components.
TCR2EE305,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):
- 3.05V
- 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
TCR2EE305,LM(CT FAQ
1.How can I place an order for TCR2EE305,LM(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EE305,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 TCR2EE305,LM(CT reliable?
The price and inventory of TCR2EE305,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 TCR2EE305,LM(CT is usually 5 days.
3.What payment methods are accepted for TCR2EE305,LM(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EE305,LM(CT transactions.
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4.How is shipping managed for TCR2EE305,LM(CT?
TCR2EE305,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EE305,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 TCR2EE305,LM(CT?
For technical support, including TCR2EE305,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EE305,LM(CT requirements.
6.How does Aetrix verify that TCR2EE305,LM(CT is sourced from the original manufacturer or authorized distributors?
All TCR2EE305,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 TCR2EE305,LM(CT meets industry standards.
7.What is the process for return or replacement of TCR2EE305,LM(CT?
All TCR2EE305,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EE305,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 TCR2EE305,LM(CT part is unused and in its original packaging.
Return procedure for TCR2EE305,LM(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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