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Toshiba Semiconductor and Storage TCR2LE15,LM(CT
- Part No.:
- TCR2LE15,LM(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SOT-553
- Datasheet:
-
TCR2LE15,LM(CT.pdf
- Description:
- IC REG LINEAR 1.5V 200MA ESV
- Quantity:
- Payment:
- Shipping:
Inventory:3,679
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Product details
Overview
TCR2LE15,LM(CT) from Toshiba is a 1.5 V fixed-output, 200 mA CMOS low-dropout regulator in ESV (SOT-553) package, featuring ultra-low 2 μA max quiescent current, 620 mV max dropout at 150 mA, ±1.0% output accuracy (for VOUT ≥ 1.8 V), overcurrent protection, and auto-discharge function-designed for space-constrained portable electronics such as Bluetooth earbuds and wearable sensors.
For engineers reviewing the TCR2LE15,LM(CT) datasheet, TCR2LE15,LM(CT) pinout, TCR2LE15,LM(CT) application, or TCR2LE15,LM(CT) equivalent, key selection criteria include its 0.1 μF ceramic capacitor compatibility, 1.6 mm × 1.6 mm footprint, control-input logic interface, and guaranteed operation across −40°C to +85°C ambient range.
Technical Context
The TCR2LE15,LM(CT) implements a CMOS-based LDO architecture with integrated on/off control input and internal pull-down on CONTROL pin, enabling precise power sequencing. It operates with VIN from 1.5 V to 5.5 V and maintains regulation down to VIN = VOUT + 0.22 V at 150 mA (typ.) for 1.5 V output.
Its auto-discharge function actively discharges the output via a 20 Ω internal switch when disabled, reducing residual voltage during standby. The device uses no external compensation and achieves stability with 0.1 μF ceramic capacitors on both input and output due to optimized internal error amplifier phase margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V - eliminates external feedback network; supports core logic and low-voltage MCU I/O rails. |
| Max Output Current | 200 mA - sufficient for single-core microcontrollers, BLE SoCs, and sensor signal chains. |
| Quiescent Current | 2 μA max at IOUT = 0 mA - enables multi-year battery life in always-on IoT endpoints. |
| Dropout Voltage | 620 mV max at IOUT = 150 mA - allows operation from single-cell Li-ion (3.0 V min) or alkaline (2.0 V min) sources. |
| Output Accuracy | ±18 mV (±1.2%) at 1.5 V - meets tight tolerance requirements for analog sensor biasing and ADC reference supplies. |
| Control Logic | VCT(OFF) ≤ 0.4 V, VCT(ON) ≥ 1.0 V - compatible with 1.8 V and 3.3 V GPIO without level-shifting. |
| Capacitor Support | 0.1 μF ceramic on VIN and VOUT - reduces PCB area by >70% vs. traditional 1–10 μF tantalum solutions. |
Pinout & Package
TCR2LE15,LM(CT) is housed in ESV (SOT-553) package: 1.6 mm × 1.6 mm × 0.55 mm, 5-pin surface-mount, moisture sensitivity level 1 (MSL1), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply connection | Accepts 1.5–5.5 V; requires 0.1 μF ceramic decoupling within 2 mm of pin. |
| VOUT | Regulated output voltage node | Delivers stable 1.5 V; connects directly to load; 0.1 μF ceramic capacitor required adjacent to pin. |
| GND | Analog and power ground reference | Common return path for VIN, VOUT, and CONTROL; must be low-impedance copper pour. |
| CONTROL | Enable/disable logic input | Active-high control: ≥1.0 V enables regulator; ≤0.4 V disables and activates auto-discharge. |
| NC | No-connect terminal | Internally unconnected; must remain floating-no external tie or trace routing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2 μA max enables >10-year shelf life in coin-cell-powered devices with periodic wake-up cycles. |
| Auto-discharge function | 20 Ω internal discharge path reduces VOUT to <0.1 V within 1 ms after disable-prevents back-powering of upstream circuitry. |
| 0.1 μF ceramic capacitor support | Eliminates need for large, costly, aging-prone electrolytic/tantalum capacitors-reduces BOM count and board area. |
| Overcurrent protection | Current-limiting triggers at ~250 mA and enters foldback mode-protects IC and source during short-circuit events. |
| ESV (SOT-553) package | 1.6 mm × 1.6 mm footprint saves >60% area vs. SOT-23; ideal for ultra-thin wearables and hearing aids. |
Applications
| Wireless Earbuds Power Management | Medical Patch Sensors |
|---|---|
Use Scenario: Compact true wireless stereo (TWS) earbud with Bluetooth LE SoC, MEMS microphone, and rechargeable Li-ion cell. IC Role / Device Role / Timing Role: Primary 1.5 V LDO supplying digital baseband and RF transceiver core logic. Use Value: Ultra-low IB extends battery runtime per charge; ESV package fits 4.5 mm × 4.5 mm PCB real estate; auto-discharge prevents leakage into disabled audio codec. | Use Scenario: Disposable ECG patch with ultra-low-power MCU, analog front-end, and BLE transmitter operating for 7+ days on CR2032. IC Role / Device Role / Timing Role: Standby-mode LDO powering MCU RTC and sensor bias circuits during sleep intervals. Use Value: 2 μA quiescent current dominates system sleep budget; 0.1 μF capacitors enable full integration into 2-layer flex PCB; ±18 mV accuracy ensures consistent ADC reference scaling. |
| Industrial Wireless Node | Smart Home Motion Detector |
Use Scenario: Battery-operated LoRaWAN node with PIR sensor, temperature/humidity IC, and sub-GHz transceiver deployed in remote HVAC ducts. IC Role / Device Role / Timing Role: Secondary regulated rail for analog sensor conditioning and precision ADC reference. Use Value: 620 mV dropout permits operation down to 2.1 V battery voltage-extending usable cell life by 18% vs. legacy 1.0 V dropout regulators. | Use Scenario: Zigbee-enabled occupancy sensor using passive infrared (PIR) and ambient light detection, powered by two AA alkaline cells. IC Role / Device Role / Timing Role: Always-on 1.5 V supply for PIR signal amplifier and wake-up controller logic. Use Value: CONTROL pin enables synchronized shutdown during deep-sleep; 1.5 V output matches optimal bias point for low-noise op-amps in analog signal chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B152MR-G | Same 1.5 V output, 200 mA rating, SOT-25 package; 1.0 μA typ quiescent current but requires 1.0 μF output capacitor. | Larger footprint (2.8 mm × 2.9 mm); less suitable for ultra-dense layouts where ESV size is critical. | Select when lowest possible IQ is mandatory and board area is not constrained. |
| Rohm BD3985FVM-15 | 1.5 V, 200 mA, 2.5 μA max IQ, VQFN-8 package; includes thermal shutdown but no auto-discharge. | Requires external 1.0 μF ceramic output cap and 0.47 μF input cap; lacks integrated discharge path. | Choose when thermal robustness in high-ambient environments is prioritized over fast output discharge. |
Compared with TCR2LE15,LM(CT), the XC6219B152MR-G offers lower typical IQ but sacrifices board-area efficiency and discharge capability, while the BD3985FVM-15 adds thermal protection at the cost of larger package and missing auto-discharge-making TCR2LE15,LM(CT) optimal for miniaturized, fast-sequencing battery-powered systems.
Availability
TCR2LE15,LM(CT) is available at Aetrix Electronics and suitable for wireless earbuds, medical patch sensors, and industrial wireless nodes requiring stable component supply, long-term lifecycle assurance, and high-volume tape-and-reel delivery.
Supply support for TCR2LE15,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 and manufactures discrete semiconductors, power devices, and analog ICs for consumer, industrial, and automotive markets.
The TCR2LE series belongs to Toshiba's ultra-low-IQ LDO portfolio, engineered specifically for energy-harvesting and battery-powered edge devices where micropower operation and minimal PCB footprint are primary design constraints.
FAQ
What is the maximum input voltage rating for TCR2LE15,LM(CT)?
The TCR2LE15,LM(CT) has an absolute maximum input voltage (VIN) rating of 6.0 V. Operation above this voltage risks permanent damage. For reliable continuous use, the recommended input range is 1.5 V to 5.5 V, ensuring proper regulation and thermal performance across the full −40°C to +85°C operating temperature range. This range supports common single-cell Li-ion, NiMH, and alkaline battery configurations.
Does TCR2LE15,LM(CT) require external compensation components?
No, TCR2LE15,LM(CT) is internally compensated and requires no external resistors or capacitors for stability. It is specifically designed to operate with only 0.1 μF ceramic capacitors on both VIN and VOUT pins-eliminating the need for larger, less reliable electrolytic or tantalum types. This simplifies layout, reduces BOM count, and improves long-term reliability in compact portable designs.
How does the auto-discharge function work in TCR2LE15,LM(CT)?
When the CONTROL pin voltage drops below 0.4 V, TCR2LE15,LM(CT) disables regulation and activates an internal 20 Ω discharge path between VOUT and GND. This rapidly pulls the output voltage to under 0.1 V within 1 ms, preventing back-powering of upstream circuitry or unintended wake-up of downstream loads. The function is fully integrated-no external FET or resistor is needed.
What is the output voltage accuracy specification for TCR2LE15,LM(CT)?
TCR2LE15,LM(CT) specifies output voltage accuracy as ±18 mV (±1.2%) at 1.5 V output, measured at TJ = 25°C with IOUT = 50 mA. Over the full operating temperature range (−40°C to +85°C), accuracy degrades to ±30 mV (±2.0%) due to temperature coefficient effects. This level of precision supports analog sensor biasing and low-voltage MCU core supplies without external trimming.
Can TCR2LE15,LM(CT) be used with 1.8 V GPIO control signals?
Yes, TCR2LE15,LM(CT) is fully compatible with 1.8 V GPIO control signals. Its CONTROL pin requires VCT(ON) ≥ 1.0 V to enable regulation and tolerates up to 6.0 V, making it safe for direct connection to 1.8 V, 3.3 V, or 5 V logic outputs. No level-shifter is required, simplifying interface design and reducing component count in mixed-voltage systems.
TCR2LE15,LM(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2LE
- 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.13V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 2 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- ESV
TCR2LE15,LM(CT FAQ
1.How can I place an order for TCR2LE15,LM(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2LE15,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 TCR2LE15,LM(CT reliable?
The price and inventory of TCR2LE15,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 TCR2LE15,LM(CT is usually 5 days.
3.What payment methods are accepted for TCR2LE15,LM(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2LE15,LM(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2LE15,LM(CT?
TCR2LE15,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2LE15,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 TCR2LE15,LM(CT?
For technical support, including TCR2LE15,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2LE15,LM(CT requirements.
6.How does Aetrix verify that TCR2LE15,LM(CT is sourced from the original manufacturer or authorized distributors?
All TCR2LE15,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 TCR2LE15,LM(CT meets industry standards.
7.What is the process for return or replacement of TCR2LE15,LM(CT?
All TCR2LE15,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2LE15,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 TCR2LE15,LM(CT part is unused and in its original packaging.
Return procedure for TCR2LE15,LM(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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