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Toshiba Semiconductor and Storage TCR2EN105,LF(SE
- Part No.:
- TCR2EN105,LF(SE
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2EN105,LF(SE.pdf
- Description:
- LDO REG VOUT=1.05V IOUT=200MA
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
TCR2EN105,LF(SE) from Toshiba Electronic Devices & Storage Corporation is a 1.05 V fixed-output CMOS low dropout regulator delivering up to 200 mA, featuring 490 mV typical dropout at 150 mA load, ±18 mV output voltage accuracy (VOUT < 1.8 V), and Auto-discharge functionality. It serves as a primary power supply for ultra-compact portable electronics requiring stable low-voltage biasing under fast load transients.
For engineers reviewing the TCR2EN105,LF(SE) datasheet, TCR2EN105,LF(SE) pinout, TCR2EN105,LF(SE) application, or TCR2EN105,LF(SE) equivalent, key selection criteria include its SDFN4/SDFN4E 0.8 mm × 0.8 mm package, 35 µA quiescent current, 73 dB ripple rejection at 1 kHz, and compatibility with 0.1 µF input / 1.0 µF ceramic output capacitors in space-constrained designs.
Technical Context
The TCR2EN105,LF(SE) implements a CMOS-based LDO architecture with integrated on/off control input and internal overcurrent protection. Its regulation loop maintains output stability across −40°C to +85°C ambient while supporting fast load transient response (±55 mV deviation at 1 mA ↔ 150 mA step).
It operates with input voltages from 1.5 V to 5.5 V and requires no external compensation due to inherent stability with low-ESR ceramic capacitors. The CONTROL pin enables active discharge of VOUT when pulled low, ensuring rapid shutdown and preventing residual voltage hold-up in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.05 V ±18 mV - ensures precise core/bias rail for 1.0–1.1 V logic domains without external feedback. |
| Dropout Voltage | 490 mV typ. at 150 mA - enables operation from 1.54 V input, critical for single-cell Li-ion or Ni-MH battery systems. |
| Quiescent Current | 35 µA typ. at zero load - minimizes standby power loss in always-on sensor nodes and wearables. |
| Output Noise | 18 µVrms typ. (10 Hz–100 kHz) - supports noise-sensitive analog circuits like ADC references and RF front-ends. |
| Ripple Rejection | 73 dB typ. at 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Load Transient Response | ±55 mV deviation (1 mA ↔ 150 mA, 1 µF COUT) - maintains system stability during burst-mode processor activity. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade portable equipment including handheld medical devices. |
Pinout & Package
TCR2EN105,LF(SE) uses the ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight) with exposed thermal pad (center electrode recommended to be connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 1.5–5.5 V input; requires 0.1 µF ceramic decoupling close to pin for stability. |
| VOUT | Regulated Output | Delivers fixed 1.05 V; connects to 1.0 µF ceramic capacitor and load; center pad must be grounded for thermal performance. |
| GND | Ground Reference | Common return path for VIN, VOUT, and CONTROL; ties to PCB ground plane via multiple vias under exposed pad. |
| CONTROL | Enable/Disable Input | Active-high logic: ≥1.0 V enables regulation; ≤0.4 V disables output and activates Auto-discharge path to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SDFN4/SDFN4E package | 0.8 mm × 0.8 mm footprint enables placement in <1.0 mm² board area - ideal for TWS earbuds and smart patches. |
| Auto-discharge function | Actively pulls VOUT to GND within microseconds when CONTROL is low - eliminates need for external bleed resistors. |
| Ceramic capacitor compatibility | Stable with 0.1 µF input and 1.0 µF output ceramics - reduces BOM count and avoids tantalum capacitor reliability risks. |
| Low-noise regulation | 18 µVrms output noise at 1.05 V - meets stringent PSRR requirements for precision analog signal chains and clock buffers. |
| Overcurrent protection | Current-limiting circuit prevents damage during short-circuit events - supports robust field deployment without external fusing. |
Applications
| Wearable Sensor Node | Bluetooth LE Module Power |
|---|---|
Use Scenario: Compact wearable health monitor with optical heart-rate sensor and BLE SoC operating from coin cell. IC Role / Device Role / Timing Role: Primary 1.05 V supply for sensor analog front-end and BLE radio core logic. Use Value: 490 mV dropout extends usable battery life by enabling regulation down to 1.54 V input; 35 µA quiescent current preserves shelf life. |
Use Scenario: Ultra-low-power Bluetooth Low Energy module in smart home sensor hub with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Standby-regulated 1.05 V rail for BLE controller's deep-sleep retention domain. Use Value: Auto-discharge ensures rapid VOUT collapse during sleep mode, eliminating leakage paths that degrade wake-up latency. |
| Portable Medical Patch | Miniature IoT Edge Node |
Use Scenario: Disposable ECG patch with integrated ADC, microcontroller, and wireless transmitter powered by thin-film battery. IC Role / Device Role / Timing Role: Precision 1.05 V reference supply for 16-bit ADC and low-noise op-amps. Use Value: 18 µVrms output noise directly improves effective resolution and SNR of biopotential measurements. |
Use Scenario: Sub-1g environmental sensor node (temperature/humidity) deployed in asset tracking tags with 10-year battery target. IC Role / Device Role / Timing Role: Always-on 1.05 V supply for real-time clock and ultra-low-power MCU in hibernation state. Use Value: 73 dB ripple rejection isolates RTC from noisy DC/DC converter output, preventing timekeeping drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R1190J105B-TR-FE | 1.05 V output, 300 mA rating, 250 mV dropout at 200 mA, SOT-23-5 package (2.9 mm × 2.8 mm) | Larger footprint and higher current capability - suitable where board space allows and peak load exceeds 200 mA | Select R1190J105B-TR-FE only if higher output current headroom or legacy SOT-23 layout compatibility is required. |
| MCP1700T-105I/TT | 1.05 V output, 250 mA rating, 600 mV dropout at 250 mA, SOT-23-3 package, no CONTROL pin or Auto-discharge | Lacks enable/disable control and active discharge - requires external circuitry for controlled shutdown | Choose MCP1700T-105I/TT only for cost-sensitive, non-shutdown-critical applications where footprint is secondary to BOM simplicity. |
Compared with R1190J105B-TR-FE and MCP1700T-105I/TT, the TCR2EN105,LF(SE) uniquely combines sub-1 mm² packaging, integrated Auto-discharge, and 490 mV dropout at 150 mA - making it optimal for next-generation miniaturized battery-powered systems demanding both size and functional integration.
Availability
TCR2EN105,LF(SE) is available at Aetrix Electronics and suitable for wearable sensor nodes, Bluetooth LE modules, portable medical patches, miniature IoT edge nodes, and ultra-compact consumer electronics requiring stable component supply with guaranteed long-term sourcing.
Supply support for TCR2EN105,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 high-efficiency, miniaturized semiconductor solutions for consumer, industrial, and automotive markets, with over 50 years of analog IC expertise.
The TCR2EN series targets ultra-portable electronics requiring ultra-small-footprint, low-quiescent-current LDOs - specifically engineered for battery-powered devices where board area, standby power, and fast transient response are design-critical.
FAQ
What is the maximum input voltage rating for TCR2EN105,LF(SE)?
The TCR2EN105,LF(SE) has an absolute maximum input voltage (VIN) rating of 6.0 V. However, its operational input range is specified from 1.5 V to 5.5 V under normal conditions. Exceeding 5.5 V may compromise regulation accuracy or reliability, and sustained operation above 6.0 V risks permanent damage. Always refer to the Absolute Maximum Ratings table in the official Toshiba datasheet for TCR2EN105,LF(SE) when designing input filtering and overvoltage protection.
Does TCR2EN105,LF(SE) require external capacitors, and what values are recommended?
Yes, TCR2EN105,LF(SE) requires external capacitors: a 0.1 µF ceramic capacitor at VIN and a 1.0 µF ceramic capacitor at VOUT. These values are validated for stability across temperature and load conditions. Toshiba specifies ESR < 10 Ω for the output capacitor. Using smaller or larger values may degrade load transient response or cause oscillation - confirmed in the Application Note section of the TCR2EN105,LF(SE) datasheet.
How does the CONTROL pin function on TCR2EN105,LF(SE)?
The CONTROL pin on TCR2EN105,LF(SE) is an active-high enable input. When voltage is ≥1.0 V, regulation is active; when ≤0.4 V, the device shuts down and activates Auto-discharge to rapidly discharge VOUT through an internal path to GND. Open or floating CONTROL is not allowed - it must be pulled to GND or driven by a logic signal. This behavior is explicitly defined in the Electrical Characteristics table for TCR2EN105,LF(SE).
What is the output voltage accuracy specification for TCR2EN105,LF(SE)?
The TCR2EN105,LF(SE) provides output voltage accuracy of ±18 mV for its 1.05 V nominal output, as specified under "VOUT < 1.8 V" in the Electrical Characteristics table. This tolerance applies at IOUT = 50 mA and Tj = 25°C. Accuracy degrades slightly over temperature and load - full min/typ/max data is provided in the TCR2EN105,LF(SE) datasheet's Output Voltage Accuracy row.
Is TCR2EN105,LF(SE) RoHS compliant and lead-free?
Yes, TCR2EN105,LF(SE) is RoHS compliant and lead-free. The "LF" suffix in the part number denotes lead-free plating, and the "SE" indicates tape-and-reel packaging per JEDEC standards. Compliance documentation, including substance declarations and test reports, is available through Toshiba's official product page and authorized distributors for TCR2EN105,LF(SE).
TCR2EN105,LF(SE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- 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):
- 1.05V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.75V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-SDFN (0.8x0.8)
TCR2EN105,LF(SE FAQ
1.How can I place an order for TCR2EN105,LF(SE through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EN105,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 TCR2EN105,LF(SE reliable?
The price and inventory of TCR2EN105,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 TCR2EN105,LF(SE is usually 5 days.
3.What payment methods are accepted for TCR2EN105,LF(SE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EN105,LF(SE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EN105,LF(SE?
TCR2EN105,LF(SE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EN105,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 TCR2EN105,LF(SE?
For technical support, including TCR2EN105,LF(SE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EN105,LF(SE requirements.
6.How does Aetrix verify that TCR2EN105,LF(SE is sourced from the original manufacturer or authorized distributors?
All TCR2EN105,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 TCR2EN105,LF(SE meets industry standards.
7.What is the process for return or replacement of TCR2EN105,LF(SE?
All TCR2EN105,LF(SE units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EN105,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 TCR2EN105,LF(SE part is unused and in its original packaging.
Return procedure for TCR2EN105,LF(SE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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