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Toshiba Semiconductor and Storage TCR2LN32,LF
- Part No.:
- TCR2LN32,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2LN32,LF.pdf
- Description:
- IC REG LINEAR 3.2V 200MA 4SDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
TCR2LN32,LF from Toshiba Electronic Devices & Storage Corporation is a fixed-output 3.2 V CMOS low dropout (LDO) voltage regulator with on/off control input, ultra-low 2 μA max quiescent current at zero load, 200 mV typical dropout at 150 mA output, and overcurrent protection - designed for power management in space-constrained portable electronics.
For engineers reviewing the TCR2LN32,LF datasheet, TCR2LN32,LF pinout, TCR2LN32,LF application, or TCR2LN32,LF equivalent, this page delivers verified electrical specs, SDFN4 package layout, auto-discharge functionality, ceramic capacitor compatibility (0.1 μF), and real-world use cases in battery-powered wearables and IoT edge nodes.
Technical Context
The TCR2LN32,LF employs a CMOS-based pass transistor architecture enabling ultra-low quiescent current and stable regulation across −40°C to +85°C ambient. Its internal control logic supports ON/OFF operation via a dedicated CONTROL pin with 1.0–5.5 V valid high threshold and 0–0.4 V valid low threshold.
It integrates auto-discharge functionality through an internal 20 Ω discharge path between VOUT and GND when disabled, ensuring rapid output voltage decay. The device achieves ±1.0% output accuracy for VOUT ≥ 1.8 V and supports ceramic input/output capacitors as small as 0.1 μF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.2 V ±1.0% (guaranteed accuracy enables precise MCU core/battery monitoring rail) |
| Max Output Current | 200 mA (supports moderate-power sensors, BLE radios, and microcontrollers) |
| Dropout Voltage | 200 mV typ. at 150 mA (enables >3.4 V input to sustain 3.2 V output under load) |
| Quiescent Current | 2.0 μA max at IOUT = 0 mA (extends battery life in always-on standby modes) |
| Stand-by Current | 1.0 μA max when CONTROL = 0 V (minimizes leakage during deep sleep) |
| Input Voltage Range | 1.5 V to 5.5 V (compatible with single-cell Li-ion, Li-poly, and 3.3 V system rails) |
| Package | SDFN4 (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight - fits 0402 footprint area) |
Pinout & Package
TCR2LN32,LF uses the ultra-compact SDFN4 plastic mold package (0.8 mm × 0.8 mm × 0.38 mm), with exposed center thermal pad recommended to be connected to GND for optimal thermal performance and stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 1.5–5.5 V; requires 0.1 μF ceramic decoupling close to pin |
| CONTROL | Enable/Disable Control Input | Active-high logic: ≥1.0 V = ON, ≤0.4 V = OFF; includes internal pull-down |
| GND | Ground Reference | Common return for VIN, VOUT, CONTROL; connects to center thermal pad |
| VOUT | Regulated Output | Fixed 3.2 V output; supports 0.1 μF ceramic capacitor; auto-discharges when disabled |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.0 μA max at zero load - extends shelf life and runtime in coin-cell or energy-harvesting systems |
| Auto-discharge function | 20 Ω internal discharge path - ensures VOUT drops to <100 mV within milliseconds after disable |
| Ceramic capacitor compatibility | Stable with 0.1 μF CIN/COUT - eliminates need for larger tantalum or aluminum electrolytics |
| High output accuracy | ±1.0% tolerance for 3.2 V output - meets tight supply requirements of precision ADCs and RF ICs |
| Overcurrent protection | Current-limiting foldback - prevents thermal runaway during short-circuit or overload events |
Applications
| Wearable Health Sensors | BLE Wireless Modules |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing in wrist-worn devices powered by CR2032 or thin Li-poly cells. IC Role / Device Role: Primary 3.2 V supply for analog front-end and low-power MCU during active and standby cycles. Use Value: 2 μA quiescent current preserves battery capacity over months; auto-discharge prevents residual bias in sensor signal chain. |
Use Scenario: Powering Nordic nRF52/nRF53-series SoCs in compact Bluetooth beacons and asset tags. IC Role / Device Role: Stable 3.2 V LDO rail for radio transceiver and embedded flash memory during TX bursts and deep sleep. Use Value: 200 mV dropout allows operation down to 3.4 V input - maximizes usable voltage range from single-cell Li-ion. |
| IoT Edge Node Controllers | Smart Card Readers |
|
Use Scenario: Battery-backed environmental monitoring node with temperature/humidity/pressure sensors and LoRaWAN radio. IC Role / Device Role: Main system regulator delivering 3.2 V to MCU, sensors, and RF interface with ON/OFF control synchronized to wake-up intervals. Use Value: Stand-by current ≤1.0 μA ensures multi-year operation on primary lithium batteries; SDFN4 footprint saves PCB area in dense modules. |
Use Scenario: Contactless smart card reader in handheld POS terminals using ISO14443-A/B interfaces. IC Role / Device Role: Dedicated 3.2 V supply for NFC controller IC and secure element, isolated from noisy main 3.3 V rail. Use Value: ±1.0% output accuracy maintains NFC field strength compliance; low noise and fast load transient response prevent communication errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R1190H321B-TR-FE | 3.2 V fixed, 300 mA rating, 250 mV dropout (typ.), 2.5 μA IQ - larger SOT-23-5 package | Higher current capability but 3× larger footprint; no auto-discharge | Choose when >200 mA peak load or board space permits SOT-23-5 |
| MCP1703T-3202E/MB | 3.2 V fixed, 250 mA, 600 mV dropout (typ.), 4 μA IQ - SOT-23 package, no auto-discharge | Higher dropout limits low-VIN operation; lacks integrated discharge path | Choose if cost sensitivity outweighs size and auto-discharge requirements |
Compared with R1190H321B-TR-FE and MCP1703T-3202E/MB, the TCR2LN32,LF uniquely combines ultra-small SDFN4 packaging, sub-2 μA quiescent current, and built-in auto-discharge - making it optimal for miniaturized, battery-sensitive designs where rapid output shutdown and minimal board area are critical.
Availability
TCR2LN32,LF is available at Aetrix Electronics and suitable for wearable health sensors, BLE wireless modules, and IoT edge node controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TCR2LN32,LF 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, miniature semiconductor solutions for consumer, industrial, and automotive markets, with emphasis on power management and analog integration.
The TCR2LN series targets ultra-low-power portable electronics, delivering CMOS LDO regulators optimized for battery longevity, minimal PCB footprint, and seamless integration with ceramic capacitors in space-constrained applications.
FAQ
What is the guaranteed output voltage tolerance for TCR2LN32,LF?
The TCR2LN32,LF guarantees ±1.0% output voltage accuracy across temperature (−40°C to +85°C) and load (1 mA to 150 mA) for its fixed 3.2 V output. This specification applies specifically to the TCR2LN32,LF and is confirmed in Toshiba's official Electrical Characteristics table under "Output voltage" for VOUT ≥ 1.8 V. It ensures reliable operation of precision analog circuits and low-voltage MCUs without external trimming.
Does TCR2LN32,LF require external capacitors, and what values are validated?
Yes, the TCR2LN32,LF requires both input and output capacitors for stability. Toshiba validates operation with 0.1 μF ceramic capacitors on both VIN and VOUT pins - no additional ESR requirements beyond standard X5R/X7R types. This is explicitly stated in the Application Note and Electrical Characteristics sections. Using these values avoids oscillation and ensures fast load transient response in the TCR2LN32,LF.
How does the auto-discharge function work in TCR2LN32,LF?
When the CONTROL pin is driven low (≤0.4 V), the TCR2LN32,LF activates an internal 20 Ω discharge path between VOUT and GND. This rapidly pulls the output voltage to near-zero - typically below 100 mV within milliseconds - preventing unintended biasing of downstream circuitry. This behavior is measured and documented in Toshiba's representative characteristics and is intrinsic to the TCR2LN32,LF silicon design.
What is the maximum allowable input voltage for TCR2LN32,LF?
The absolute maximum input voltage for TCR2LN32,LF is 6.0 V, per Toshiba's Absolute Maximum Ratings table. However, the recommended operating range is 1.5 V to 5.5 V - exceeding 5.5 V risks permanent damage even if duration is brief. This limit is strictly enforced in production testing and applies only to the TCR2LN32,LF; other variants in the TCR2LN series share identical VIN ratings.
Is TCR2LN32,LF compatible with lead-free reflow soldering processes?
Yes, the TCR2LN32,LF is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its SDFN4 package uses matte tin plating and is rated for peak reflow temperatures up to 260°C (10-second exposure). This compatibility is confirmed in Toshiba's Package Dimensions and Reliability documentation for the TCR2LN series and applies uniformly to all SDFN4-packaged variants including the TCR2LN32,LF.
TCR2LN32,LF 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):
- 3.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.28V @ 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)
TCR2LN32,LF FAQ
1.How can I place an order for TCR2LN32,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2LN32,LF 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 TCR2LN32,LF reliable?
The price and inventory of TCR2LN32,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2LN32,LF is usually 5 days.
3.What payment methods are accepted for TCR2LN32,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2LN32,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2LN32,LF?
TCR2LN32,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2LN32,LF 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 TCR2LN32,LF?
For technical support, including TCR2LN32,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2LN32,LF requirements.
6.How does Aetrix verify that TCR2LN32,LF is sourced from the original manufacturer or authorized distributors?
All TCR2LN32,LF 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 TCR2LN32,LF meets industry standards.
7.What is the process for return or replacement of TCR2LN32,LF?
All TCR2LN32,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR2LN32,LF, 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 TCR2LN32,LF part is unused and in its original packaging.
Return procedure for TCR2LN32,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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