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Toshiba Semiconductor and Storage TCR2LN09,LF(SE
- Part No.:
- TCR2LN09,LF(SE
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2LN09,LF(SE.pdf
- Description:
- LDO REG VOUT=0.9V I=200MA
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
TCR2LN09,LF(SE) from Toshiba Electronic Devices & Storage Corporation is a CMOS low-dropout linear voltage regulator delivering fixed 0.9 V output at up to 200 mA, featuring ultra-low 2 μA (max) quiescent current, 920 mV (typ.) dropout at 150 mA, and auto-discharge functionality in an SDFN4 package (0.8 mm × 0.8 mm × 0.38 mm). It serves as a power management IC for battery-powered portable electronics requiring high-density board layout.
For engineers reviewing the TCR2LN09,LF(SE) datasheet, TCR2LN09,LF(SE) pinout, TCR2LN09,LF(SE) application, or TCR2LN09,LF(SE) equivalent, key selection criteria include its 0.9 V fixed output, ±1.0% accuracy (at ≥1.8 V), 2 μA max quiescent current, SDFN4 footprint compatibility, and integrated overcurrent protection - all critical for ultra-low-power wearable and IoT sensor node designs.
Technical Context
The TCR2LN09,LF(SE) implements a CMOS-based LDO architecture with on/off control input (CONTROL pin), enabling active shutdown with only 0.1 μA standby current. Its internal circuitry includes thermal shutdown, overcurrent protection, and an auto-discharge path via 20 Ω discharge resistance when disabled.
It operates across −40°C to +85°C ambient temperature, supports input voltages from 1.5 V to 5.5 V, and maintains stable regulation using only 0.1 μF ceramic capacitors on both input and output - enabled by low-ESR tolerance (<10 Ω recommended) and optimized internal compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.9 V - enables direct powering of ultra-low-voltage logic cores and RF transceivers without external feedback network. |
| Max Output Current | 200 mA - sufficient for powering microcontrollers, sensors, and BLE radios in compact portable devices. |
| Quiescent Current | 2 μA (max) at IOUT = 0 mA - minimizes battery drain during sleep modes in always-on edge nodes. |
| Dropout Voltage | 920 mV (typ.) at IOUT = 150 mA - allows operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (2.4 V min) with margin. |
| Accuracy | ±1.0% at VOUT ≥ 1.8 V; ±18 mV at VOUT = 0.9 V - ensures predictable supply rail for precision analog peripherals. |
| Package | SDFN4 (0.8 mm × 0.8 mm × 0.38 mm) - supports <0.6 mg weight and PCB area reduction in space-constrained wearables. |
| Control Interface | CMOS-compatible CONTROL pin with 1.0–5.5 V ON threshold - simplifies direct GPIO interfacing without level-shifting. |
Pinout & Package
SDFN4 package: 4-terminal ultra-small plastic mold package (0.8 mm × 0.8 mm × 0.38 mm), bottom-exposed thermal pad (center electrode) intended for GND connection or left floating per design requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 1.5–5.5 V DC input; requires 0.1 μF ceramic capacitor placed adjacent to minimize noise coupling. |
| VOUT | Regulated Output | Delivers stable 0.9 V ±18 mV; connects directly to load with 0.1 μF ceramic capacitor for transient response stability. |
| GND | Ground Reference | Common return path for VIN, VOUT, and CONTROL; must be low-impedance and tied to center thermal pad if used. |
| CONTROL | Enable/Disable Input | Active-high logic control: ≥1.0 V enables regulation; ≤0.4 V disables output and activates auto-discharge path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2 μA max at zero load - extends battery life in multi-year sensor deployments. |
| Auto-discharge function | 20 Ω internal discharge path - rapidly clears VOUT capacitance upon shutdown, preventing unintended wake-up. |
| Ceramic capacitor support | 0.1 μF CIN/COUT compatible - eliminates need for larger tantalum or aluminum electrolytics, saving board space and cost. |
| Overcurrent protection | Current-limiting foldback behavior - prevents thermal runaway during short-circuit events without latch-up. |
| Precision output accuracy | ±18 mV at 0.9 V - meets tight supply tolerance requirements for low-voltage DSPs and ADC reference rails. |
Applications
| Wearable Health Monitors | BLE Sensor Nodes |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing in wrist-worn devices powered by coin-cell or thin-film batteries. IC Role / Device Role / Timing Role: Primary 0.9 V supply regulator for ultra-low-power MCU and analog front-end. Use Value: 2 μA quiescent current enables >3-year battery life in sleep-dominated operation; SDFN4 footprint fits sub-10 mm² PCB area. |
Use Scenario: Battery-operated environmental sensor (temp/humidity/pressure) transmitting data via Bluetooth Low Energy. IC Role / Device Role / Timing Role: Stable 0.9 V rail for BLE SoC during transmit bursts and deep-sleep cycles. Use Value: 920 mV dropout allows full utilization of declining battery voltage down to ~1.8 V; auto-discharge prevents leakage-induced reset. |
| Smart RFID Tags | Implantable Medical Sensors |
|
Use Scenario: Passive or semi-passive UHF RFID tags with onboard sensing and energy harvesting circuitry. IC Role / Device Role / Timing Role: Low-noise, low-quiescent LDO regulating harvested energy for memory and logic. Use Value: 0.1 μF capacitor compatibility reduces BOM count and enables integration into flexible substrate layouts. |
Use Scenario: Miniaturized subcutaneous glucose or neural activity monitors operating for months on miniature primary cells. IC Role / Device Role / Timing Role: Precision 0.9 V bias source for low-noise amplifiers and ADCs in analog signal chain. Use Value: ±18 mV output accuracy ensures consistent sensor calibration; thermal shutdown protects against tissue heating risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0509PDBVR | 0.9 V fixed output, 200 mA, 1.7 μA IQ, SOT-23-5 package (2.9 mm × 1.6 mm) | Larger footprint; no auto-discharge; higher dropout (170 mV @ 100 mA) | Preferred where board space permits larger package and auto-discharge is not required. |
| XC6210B092MR-G | 0.9 V fixed output, 200 mA, 1.0 μA IQ, SOT-25 package (2.9 mm × 1.6 mm) | No auto-discharge; lower IQ but larger size; 300 mV dropout @ 100 mA | Selected when lowest possible quiescent current outweighs footprint and discharge needs. |
Compared with TCR2LN09,LF(SE), both alternatives offer lower quiescent current but require significantly more PCB area and lack integrated auto-discharge - making TCR2LN09,LF(SE) uniquely suited for space-constrained, fast-shutdown-sensitive applications like medical patches and hearables.
Availability
TCR2LN09,LF(SE) is available at Aetrix Electronics and suitable for wearable health monitors, BLE sensor nodes, smart RFID tags, and implantable medical sensors requiring stable component supply, long-lifecycle assurance, and ultra-miniature packaging.
Supply support for TCR2LN09,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-reliability semiconductor solutions, with expertise in power management, logic, memory, and discrete devices for industrial, automotive, and consumer markets.
The TCR2LN series targets ultra-low-power portable electronics, delivering CMOS LDO regulators optimized for minimal quiescent current, smallest possible footprint, and seamless integration with ceramic capacitors in space- and energy-constrained systems.
FAQ
What is the output voltage tolerance of the TCR2LN09,LF(SE) at 0.9 V?
The TCR2LN09,LF(SE) has an output voltage tolerance of ±18 mV at 0.9 V (equivalent to ±2.0%) under specified test conditions (IOUT = 50 mA, Tj = 25°C). This is derived from the "−18 to +18 mV" specification in the Electrical Characteristics table for VOUT < 1.8 V. The TCR2LN09,LF(SE) does not meet the tighter ±1.0% spec applicable only to outputs ≥1.8 V.
Does the TCR2LN09,LF(SE) require external resistors for output voltage setting?
No, the TCR2LN09,LF(SE) is a fixed-output regulator with factory-trimmed 0.9 V output. It contains no external feedback pins and does not require any resistors for voltage configuration. The output is internally set and guaranteed within ±18 mV across temperature and load conditions.
Can the TCR2LN09,LF(SE) be used with input voltages below 1.5 V?
No - the Absolute Maximum Ratings specify a minimum input voltage of 1.5 V for reliable operation. Below this, the TCR2LN09,LF(SE) may fail to regulate or exhibit unstable behavior. Its dropout voltage at 150 mA is 920 mV, so a minimum VIN of 1.82 V is required to sustain 0.9 V output under full load.
What is the thermal pad connection requirement for the TCR2LN09,LF(SE) SDFN4 package?
The center electrode (thermal pad) of the TCR2LN09,LF(SE) SDFN4 package should be connected to GND for optimal thermal performance and electrical stability, though the datasheet states it may be left open if thermal constraints permit. Connecting it to GND improves heat dissipation and reduces junction temperature rise during continuous 200 mA operation.
How does the auto-discharge function operate in the TCR2LN09,LF(SE)?
When the CONTROL pin is pulled low (≤0.4 V), the TCR2LN09,LF(SE) disables regulation and activates an internal 20 Ω discharge path between VOUT and GND. This rapidly discharges output capacitance - critical for preventing residual voltage from causing unintended wake-up in downstream logic or sensors after shutdown.
TCR2LN09,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):
- 0.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.46V @ 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)
TCR2LN09,LF(SE FAQ
1.How can I place an order for TCR2LN09,LF(SE through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2LN09,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 TCR2LN09,LF(SE reliable?
The price and inventory of TCR2LN09,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 TCR2LN09,LF(SE is usually 5 days.
3.What payment methods are accepted for TCR2LN09,LF(SE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2LN09,LF(SE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2LN09,LF(SE?
TCR2LN09,LF(SE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2LN09,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 TCR2LN09,LF(SE?
For technical support, including TCR2LN09,LF(SE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2LN09,LF(SE requirements.
6.How does Aetrix verify that TCR2LN09,LF(SE is sourced from the original manufacturer or authorized distributors?
All TCR2LN09,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 TCR2LN09,LF(SE meets industry standards.
7.What is the process for return or replacement of TCR2LN09,LF(SE?
All TCR2LN09,LF(SE units undergo pre-shipment inspection (PSI). If there is an issue with TCR2LN09,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 TCR2LN09,LF(SE part is unused and in its original packaging.
Return procedure for TCR2LN09,LF(SE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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