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Toshiba Semiconductor and Storage TCR2EF15,LM(CT
- Part No.:
- TCR2EF15,LM(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TCR2EF15,LM(CT.pdf
- Description:
- IC REG LINEAR 1.5V 200MA SMV
- Quantity:
- Payment:
- Shipping:
Inventory:2,358
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Product details
Overview
TCR2EF15,LM(CT from Toshiba Electronic Devices & Storage Corporation is a 1.5 V fixed-output CMOS low dropout (LDO) regulator delivering up to 200 mA with 290 mV typical dropout at 150 mA load, 35 μVrms output noise, and ±60 mV load transient response - designed for analog/RF power rails in portable instrumentation and wireless sensor nodes.
For engineers reviewing the TCR2EF15,LM(CT) datasheet, TCR2EF15,LM(CT) pinout, TCR2EF15,LM(CT) application, or TCR2EF15,LM(CT) equivalent, key selection criteria include dropout voltage at 1.5 V output, Auto-discharge functionality, SOT-553 (ESV) package compatibility, and guaranteed ±1.0% output accuracy for 1.5 V ≥ 1.8 V (note: 1.5 V falls under ±18 mV spec per datasheet Note 6).
Technical Context
The TCR2EF15,LM(CT) uses a CMOS pass transistor architecture enabling ultra-low quiescent current (35 μA typ.) and fast load transient recovery without external compensation. Its on/off control input supports active-low logic-level shutdown with 0.4 V max OFF threshold and 1.0 V min ON threshold.
It integrates overcurrent protection and an internal auto-discharge path via pulldown between CONTROL and GND, ensuring rapid output discharge when disabled. Input voltage range is 1.5–5.5 V, supporting single-cell Li-ion, 3.3 V rail regulation, and multi-rail system biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V (±18 mV accuracy per datasheet Note 6) |
| Max Output Current | 200 mA DC - sufficient for RF transceivers, ADC/DAC bias, and microcontroller core rails |
| Dropout Voltage | 290 mV typ. at IOUT = 150 mA - enables stable 1.5 V output from 1.79 V input (e.g., discharged LiFePO₄) |
| Output Noise | 35 μVrms (10 Hz–100 kHz) - suitable for noise-sensitive analog signal chains and PLL/VCO supplies |
| Load Transient Response | ±60 mV deviation (1 mA ⇔ 150 mA step, COUT = 1.0 μF) - maintains regulation during burst-mode MCU or radio activity |
| Quiescent Current | 35 μA typ. at zero load - extends battery life in always-on sensor endpoints |
| Ripple Rejection | 73 dB typ. at 1 kHz - suppresses switching regulator coupling from upstream DC/DC stages |
Pinout & Package
TCR2EF15,LM(CT) is packaged in ESV (SOT-553), a 1.6 mm × 1.6 mm × 0.55 mm ceramic package weighing 3.0 mg (typ.), 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 decoupling close to pin |
| VOUT | Regulated output | Delivers stable 1.5 V; requires ≥1.0 μF ceramic output capacitor with ESR <10 Ω |
| GND | Power ground reference | Common return for VIN, VOUT, and CONTROL; must be low-impedance plane |
| CONTROL | Active-low enable input | Pulled down internally; drives LOW (≤0.4 V) to disable regulator and activate auto-discharge |
| NC | No-connect terminal | Not bonded; must remain unconnected and unpopulated on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Internally discharges VOUT through pulldown when CONTROL is LOW - eliminates hold-up voltage in power sequencing |
| Ceramic capacitor support | Stable with 0.1 μF input / 1.0 μF output ceramics - reduces BOM count and board area vs. tantalum/aluminum |
| Low-noise regulation | 35 μVrms output noise - avoids SNR degradation in precision ADCs and low-phase-noise RF synthesizers |
| Fast load transient recovery | ±60 mV excursion under 150 mA step load - prevents brownout in burst-mode SoCs and BLE/Wi-Fi radios |
| High accuracy at low VOUT | ±18 mV (±1.2%) tolerance at 1.5 V - tighter than standard LDOs for FPGA I/O or low-voltage logic rails |
Applications
| Portable Medical Sensors | Wireless IoT Endpoints |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with analog front-end and BLE radio. IC Role / Device Role / Timing Role: Supplies clean 1.5 V bias to op-amp sensor interface and BLE SoC I/O domain. Use Value: Low 35 μVrms noise preserves signal integrity of sub-mV biological signals; ±60 mV transient response prevents BLE packet loss during transmit bursts. |
Use Scenario: Battery-powered environmental sensor node logging temperature/humidity and transmitting via LoRaWAN. IC Role / Device Role / Timing Role: Powers ultra-low-power microcontroller and RF transceiver from coin cell or energy harvester. Use Value: 35 μA quiescent current extends shelf life >5 years; 290 mV dropout enables operation down to 1.79 V input - critical for aging primary cells. |
| Industrial Process Transmitters | Audio Signal Conditioning |
|
Use Scenario: 4–20 mA loop-powered pressure transmitter with HART modulation capability. IC Role / Device Role / Timing Role: Generates isolated 1.5 V rail for HART modem IC and precision ADC reference buffer. Use Value: 73 dB ripple rejection blocks 1 kHz HART carrier coupling into analog signal path; ±18 mV accuracy ensures calibrated measurement linearity. |
Use Scenario: Portable USB-C DAC with headphone amplifier and digital audio controller. IC Role / Device Role / Timing Role: Provides low-noise 1.5 V supply to Class-D amplifier gate driver and DAC reference circuitry. Use Value: 35 μVrms noise prevents audible hiss; auto-discharge clears residual charge before sleep mode - eliminating pop/click on wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCS2EF15,LM(CT) | Same pinout, same 1.5 V output, but rated for 300 mA max output current and higher thermal resistance (ESV package same footprint) | Better suited for higher-current analog subsystems where margin above 200 mA is required | Select if peak load exceeds 200 mA or long-term reliability at elevated ambient temperatures is critical |
| XC6219B152MR-G | 1.5 V fixed output, 150 mA max, 250 mV dropout (typ.), SOT-25 package - larger footprint than ESV | Lacks Auto-discharge and has higher quiescent current (1.5 μA vs. 35 μA) | Choose only if SOT-25 mounting infrastructure exists and auto-discharge is not required |
Compared with TCR2EF15,LM(CT), TCS2EF15,LM(CT) offers headroom for future current scaling without layout change, while XC6219B152MR-G trades size and features for legacy compatibility - neither is pin-compatible due to differing NC pin presence and thermal pad design in ESV.
Availability
TCR2EF15,LM(CT) is available at Aetrix Electronics and suitable for portable medical sensors, wireless IoT endpoints, industrial process transmitters, and audio signal conditioning requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for TCR2EF15,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-efficiency, high-reliability semiconductor solutions for automotive, industrial, and consumer applications, with over 50 years of analog IC heritage.
The TCR2EF series targets space- and power-constrained systems needing ultra-low-noise, fast-transient LDOs - specifically engineered for analog/RF subsystems in battery-operated edge devices.
FAQ
What is the output voltage tolerance of TCR2EF15,LM(CT) at 1.5 V?
The TCR2EF15,LM(CT) has an output voltage accuracy of ±18 mV (±1.2%) at 1.5 V, as specified in the Electrical Characteristics table under "Output voltage accuracy" for VOUT < 1.8 V (Note 6). This is tighter than many general-purpose LDOs and supports precision analog biasing requirements in the TCR2EF15,LM(CT) application space.
Does TCR2EF15,LM(CT) require an external pull-down resistor on the CONTROL pin?
No - the TCR2EF15,LM(CT) includes an internal pull-down connection between CONTROL and GND, as stated in the Features list. This allows direct interfacing with open-drain or CMOS logic outputs without external components, simplifying design and reducing BOM count for the TCR2EF15,LM(CT) implementation.
Can ceramic capacitors be used with TCR2EF15,LM(CT), and what ESR is recommended?
Yes, ceramic capacitors are fully supported for both input (≥0.1 μF) and output (≥1.0 μF) in the TCR2EF15,LM(CT) design. Toshiba recommends keeping the ESR of the output ceramic capacitor below 10 Ω to ensure stability and optimal transient response - a value easily met by standard X5R/X7R MLCCs used with the TCR2EF15,LM(CT).
What is the maximum allowable input voltage for TCR2EF15,LM(CT)?
The absolute maximum input voltage for TCR2EF15,LM(CT) is 6.0 V, per the Absolute Maximum Ratings table. However, the recommended operating input voltage range is 1.5–5.5 V. Exceeding 5.5 V may trigger overvoltage stress even if within absolute limits, so system design should constrain VIN to ≤5.5 V for reliable TCR2EF15,LM(CT) operation.
How does the Auto-discharge function work in TCR2EF15,LM(CT)?
When the CONTROL pin is driven LOW (≤0.4 V), the TCR2EF15,LM(CT) disables regulation and activates an internal discharge path from VOUT to GND. This rapidly depletes stored charge in the output capacitor - critical for safe power sequencing and preventing unintended wake-up in the TCR2EF15,LM(CT) application - without requiring external MOSFETs or resistors.
TCR2EF15,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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 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
TCR2EF15,LM(CT FAQ
1.How can I place an order for TCR2EF15,LM(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EF15,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 TCR2EF15,LM(CT reliable?
The price and inventory of TCR2EF15,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 TCR2EF15,LM(CT is usually 5 days.
3.What payment methods are accepted for TCR2EF15,LM(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EF15,LM(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EF15,LM(CT?
TCR2EF15,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EF15,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 TCR2EF15,LM(CT?
For technical support, including TCR2EF15,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EF15,LM(CT requirements.
6.How does Aetrix verify that TCR2EF15,LM(CT is sourced from the original manufacturer or authorized distributors?
All TCR2EF15,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 TCR2EF15,LM(CT meets industry standards.
7.What is the process for return or replacement of TCR2EF15,LM(CT?
All TCR2EF15,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EF15,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 TCR2EF15,LM(CT part is unused and in its original packaging.
Return procedure for TCR2EF15,LM(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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