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Toshiba Semiconductor and Storage TCR2LN10,LF(SE
- Part No.:
- TCR2LN10,LF(SE
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2LN10,LF(SE.pdf
- Description:
- LDO REG VOUT1.0V I=200MA
- Quantity:
- Payment:
- Shipping:
Inventory:9,970
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Product details
Overview
TCR2LN10,LF(SE) from Toshiba Electronic Devices & Storage Corporation is a 1.0 V fixed-output, 200 mA CMOS low dropout (LDO) voltage regulator with ultra-low quiescent current (2 μA max), on/off control input, and auto-discharge function-designed for power management in space-constrained portable electronics such as cellular phones and wearables.
For engineers reviewing the TCR2LN10,LF(SE) datasheet, TCR2LN10,LF(SE) pinout, TCR2LN10,LF(SE) application, or TCR2LN10,LF(SE) equivalent, key selection criteria include its 840 mV typical dropout at 150 mA output, ±1.0% output accuracy (for VOUT ≥ 1.8 V; note: 1.0 V falls under ±18 mV spec), SDFN4 package (0.8 mm × 0.8 mm × 0.38 mm), and compatibility with 0.1 μF ceramic input/output capacitors.
Technical Context
The TCR2LN10,LF(SE) implements a CMOS-based LDO architecture with integrated control logic enabling ON/OFF operation via the CONTROL pin, where VCT(OFF) ≤ 0.4 V disables regulation and activates auto-discharge through a 20 Ω internal discharge path. Its bias circuitry achieves 2 μA quiescent current at zero load across −40°C to +85°C.
Dropout voltage is output-voltage-dependent: at 1.0 V output and 150 mA load, typical VDO is 840 mV (max 1380 mV over temperature), enabling stable regulation from VIN ≥ 1.84 V. Output accuracy is specified as ±18 mV for VOUT = 1.0 V, reflecting absolute tolerance rather than percentage-based error used for higher outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0 V ±18 mV (absolute tolerance, not %); ensures precise rail for 1.0 V logic or analog subsystems. |
| Max Output Current | 200 mA continuous; supports moderate-power microcontrollers, sensors, or RF front-ends in compact devices. |
| Quiescent Current | 1.0 μA typ. / 2.0 μA max at IOUT = 0 mA; enables multi-year battery life in always-on IoT endpoints. |
| Dropout Voltage | 840 mV typ. at IOUT = 150 mA (Tj = 25°C); allows operation from single-cell Li-ion (≥2.7 V) or two-cell alkaline (≥2.4 V) sources. |
| Input Voltage Range | 1.5 V to 5.5 V; compatible with common intermediate rails and battery chemistries without external level-shifting. |
| Control Logic | VCT(OFF) ≤ 0.4 V disables regulator and engages 20 Ω auto-discharge path; eliminates residual output voltage during standby. |
| Capacitor Support | Stable with 0.1 μF ceramic CIN/COUT; reduces BOM count and PCB area vs. larger tantalum or aluminum electrolytics. |
Pinout & Package
TCR2LN10,LF(SE) uses the ultra-small SDFN4 surface-mount package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight), with exposed center pad recommended for GND connection to enhance thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 1.5–5.5 V; requires local 0.1 μF ceramic decoupling to minimize noise and ensure stability. |
| CONTROL | Enable/Disable Control Input | Logic-high (≥1.0 V) enables regulation; logic-low (≤0.4 V) disables output and activates auto-discharge. |
| GND | Ground Reference | System ground return; center pad must be connected to GND plane for optimal thermal dissipation and PSRR. |
| VOUT | Regulated Output | Delivers stable 1.0 V ±18 mV; requires 0.1 μF ceramic capacitor placed adjacent to pin for transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Quiescent Current | 2 μA max at zero load enables >10-year battery life in coin-cell-powered sensors. |
| Auto-Discharge Function | 20 Ω internal discharge path clears VOUT within microseconds after shutdown-critical for fast wake-up sequencing. |
| Small-Footprint Packaging | SDFN4 (0.8 mm × 0.8 mm) reduces PCB area by >70% vs. standard SOT-23, enabling high-density mobile designs. |
| High Accuracy at Low Voltage | ±18 mV absolute tolerance at 1.0 V ensures reliable operation of 1.0 V I/O domains without margin overhead. |
| Low-ESR Ceramic Compatibility | Stable with 0.1 μF ceramic caps (ESR < 10 Ω); eliminates need for bulk capacitance and simplifies layout. |
Applications
| Wearable Health Sensors | Bluetooth LE Modules |
|---|---|
|
Use Scenario: Continuous ECG/PPG monitoring in wrist-worn devices powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Primary 1.0 V supply for ultra-low-power analog front-end and ADC. Use Value: 2 μA quiescent current extends battery life beyond 3 years; auto-discharge prevents leakage-induced sensor drift during sleep mode. |
Use Scenario: Powering Nordic nRF52832 SoC in compact BLE beacons with minimal PCB real estate. IC Role / Device Role / Timing Role: Dedicated 1.0 V LDO for core logic and radio transceiver domains. Use Value: 840 mV dropout enables full 200 mA burst current from 2.4 V alkaline supply; SDFN4 footprint fits within 1.2 mm² board area. |
| Smart Card Readers | Industrial IoT Edge Nodes |
|
Use Scenario: Contactless smart card interface modules requiring strict 1.0 V compliance per ISO/IEC 14443. IC Role / Device Role / Timing Role: Precision voltage source for NFC controller and secure element ICs. Use Value: ±18 mV output tolerance meets ISO 14443 Class A/B voltage window; 0.1 μF ceramic stability avoids timing jitter in RF carrier generation. |
Use Scenario: Battery-backed environmental sensor nodes deployed in remote locations with 10+ year service life. IC Role / Device Role / Timing Role: Always-on 1.0 V regulator for RTC, memory retention, and wake-up circuitry. Use Value: 0.4 V VCT(OFF) threshold ensures clean shutdown during brown-out; −40°C to +85°C operation guarantees 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 |
|---|---|---|---|
| R1192N101B-TR-FE | 1.0 V output, 150 mA rating, 250 mV dropout (typ.), 0.8 μA IQ; SOT-23-5 package (2.9 mm × 2.8 mm). | Larger footprint and lower current limit reduce suitability for ultra-dense portable designs. | Prefer when board space permits and lower cost is prioritized over miniaturization. |
| MCP1703T-1002E/MB | 1.0 V output, 250 mA rating, 600 mV dropout (typ.), 2.5 μA IQ; SOT-23-5 package (2.9 mm × 2.8 mm). | Higher dropout and larger package increase minimum input voltage and PCB area requirements. | Select when higher output current headroom is needed and thermal derating allows 250 mA operation. |
Compared with R1192N101B-TR-FE and MCP1703T-1002E/MB, the TCR2LN10,LF(SE) delivers superior miniaturization (0.64 mm² vs. 8.12 mm²), lower dropout at 150 mA (840 mV vs. ≥600 mV), and tighter integration of auto-discharge-making it optimal for next-generation wearables and coin-cell IoT endpoints where size and standby efficiency are critical.
Availability
TCR2LN10,LF(SE) is available at Aetrix Electronics and suitable for wearable health sensors, Bluetooth LE modules, smart card readers, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TCR2LN10,LF(SE) 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 high-efficiency semiconductor solutions for consumer, industrial, and automotive markets, with expertise in power management, logic, and memory technologies.
The TCR2LN series targets ultra-low-power portable electronics, delivering CMOS LDO regulators optimized for minimal quiescent current, miniature packaging, and seamless integration with ceramic capacitors in space- and energy-constrained applications.
FAQ
What is the output voltage tolerance of TCR2LN10,LF(SE) at 1.0 V?
The TCR2LN10,LF(SE) specifies an absolute output voltage tolerance of ±18 mV at 1.0 V (not ±1.0%, which applies only to outputs ≥1.8 V). This means the actual output remains within 0.982 V to 1.018 V under nominal conditions, ensuring compatibility with 1.0 V I/O standards and precision analog circuits. The tolerance is verified across −40°C to +85°C operating temperature range.
Does TCR2LN10,LF(SE) require external components for stability?
No, the TCR2LN10,LF(SE) is internally compensated and stable with only 0.1 μF ceramic capacitors on both input (VIN) and output (VOUT) pins. Toshiba explicitly validates this configuration across all operating conditions, eliminating the need for additional resistors, ferrites, or larger bulk capacitors-reducing BOM count and PCB area while maintaining robust transient response and PSRR performance.
How does the auto-discharge function operate in TCR2LN10,LF(SE)?
When the CONTROL pin voltage drops to ≤0.4 V, the TCR2LN10,LF(SE) disables regulation and activates an internal 20 Ω discharge path between VOUT and GND. This rapidly discharges the output capacitor-typically clearing VOUT to <100 mV within 100 μs-preventing residual voltage from interfering with downstream logic states or causing unintended wake-up events in battery-powered systems.
What is the maximum allowable input voltage for TCR2LN10,LF(SE)?
The absolute maximum input voltage for TCR2LN10,LF(SE) is 6.0 V, but the recommended operating range is 1.5 V to 5.5 V. Exceeding 5.5 V risks exceeding the device's power dissipation limits-even at light loads-due to the SDFN4 package's limited thermal resistance (θJA ≈ 300°C/W). For reliable operation, maintain VIN ≤ 5.5 V and ensure adequate PCB copper area for heat spreading.
Can TCR2LN10,LF(SE) be used with non-ceramic output capacitors?
Toshiba qualifies the TCR2LN10,LF(SE) exclusively for use with ceramic capacitors (COUT = 0.1 μF, ESR < 10 Ω). Tantalum or aluminum electrolytic capacitors introduce higher ESR and ESL, which destabilize the control loop and degrade load transient response-potentially causing oscillation or overshoot. Using non-ceramic capacitors voids the guaranteed stability and performance specifications defined in the official datasheet for TCR2LN10,LF(SE).
TCR2LN10,LF(SE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2LN
- Package/Case:
- 4-XFDFN Exposed Pad
- 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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.38V @ 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:
- 4-SDFN (0.8x0.8)
TCR2LN10,LF(SE FAQ
1.How can I place an order for TCR2LN10,LF(SE through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2LN10,LF(SE 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 TCR2LN10,LF(SE reliable?
The price and inventory of TCR2LN10,LF(SE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2LN10,LF(SE is usually 5 days.
3.What payment methods are accepted for TCR2LN10,LF(SE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2LN10,LF(SE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2LN10,LF(SE?
TCR2LN10,LF(SE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2LN10,LF(SE 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 TCR2LN10,LF(SE?
For technical support, including TCR2LN10,LF(SE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2LN10,LF(SE requirements.
6.How does Aetrix verify that TCR2LN10,LF(SE is sourced from the original manufacturer or authorized distributors?
All TCR2LN10,LF(SE 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 TCR2LN10,LF(SE meets industry standards.
7.What is the process for return or replacement of TCR2LN10,LF(SE?
All TCR2LN10,LF(SE units undergo pre-shipment inspection (PSI). If there is an issue with TCR2LN10,LF(SE, 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 TCR2LN10,LF(SE part is unused and in its original packaging.
Return procedure for TCR2LN10,LF(SE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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