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Toshiba Semiconductor and Storage TCR2EN18,LF
- Part No.:
- TCR2EN18,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2EN18,LF.pdf
- Description:
- IC REG LINEAR 1.8V 200MA 4SDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,840
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Product details
Overview
TCR2EN18,LF from Toshiba Electronic Devices & Storage Corporation is a 1.8 V fixed-output CMOS low-dropout linear regulator in an ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm), delivering up to 200 mA with 160 mV dropout at 150 mA, ±1.0% output accuracy, and 30 µVrms output noise - designed for power management in space-constrained portable electronics such as smartphone baseband ICs and wireless sensor nodes.
For engineers reviewing the TCR2EN18,LF datasheet, TCR2EN18,LF pinout, TCR2EN18,LF application, or TCR2EN18,LF equivalent, key selection criteria include dropout voltage at 150 mA load, quiescent current under zero-load standby (35 µA typ.), fast load transient response (±55 mV), Auto-discharge functionality, and compatibility with 0.1 µF input / 1.0 µF ceramic output capacitors.
Technical Context
The TCR2EN18,LF implements a CMOS-based LDO architecture with integrated on/off control input (CONTROL pin), enabling precise system-level power sequencing. Its internal circuitry includes overcurrent protection, thermal shutdown, and an active Auto-discharge path that rapidly discharges the output capacitor 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 with ceramic capacitors having ESR < 10 Ω - eliminating need for tantalum or aluminum electrolytic types. The device achieves 73 dB ripple rejection at 1 kHz and exhibits 75 ppm/°C output voltage temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1.0% (guaranteed accuracy for stable biasing of 1.8 V logic cores) |
| Max Output Current | 200 mA (supports moderate-power RF transceivers and MCU peripherals) |
| Dropout Voltage | 160 mV typ. at 150 mA (enables operation down to VIN = 1.96 V, critical for single-cell Li-ion or coin-cell systems) |
| Quiescent Current | 35 µA typ. at IOUT = 0 mA (minimizes battery drain in always-on sensor wake-up circuits) |
| Output Noise | 30 µVrms typ. (10 Hz–100 kHz) - low enough for noise-sensitive analog front-ends and ADC references) |
| Load Transient Response | ±55 mV typ. (1 mA ⇔ 150 mA step, COUT = 1.0 µF) - ensures stable supply during burst-mode processor activity) |
| Ripple Rejection | 73 dB typ. at 1 kHz - suppresses switching noise from upstream DC/DC converters) |
Pinout & Package
TCR2EN18,LF is housed in the ultra-compact SDFN4/SDFN4E plastic mold package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight), optimized for high-density PCB layouts in mobile and wearable devices.
| 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 for stability |
| VOUT | Regulated Output | Delivers fixed 1.8 V; connects directly to load; requires 1.0 µF ceramic output capacitor with ESR < 10 Ω |
| GND | Ground Reference | Common return path for input, output, and control; center electrode must be connected to GND |
| CONTROL | Enable/Disable Input | Active-high logic: ≥1.0 V enables regulator; ≤0.4 V disables with Auto-discharge activation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Small SDFN4/SDFN4E Package | 0.8 mm × 0.8 mm footprint enables placement in tight spaces behind displays or near RF modules |
| Auto-Discharge Function | Actively pulls VOUT to GND within microseconds after CONTROL goes low - prevents floating outputs and unintended wake-up |
| Low Quiescent Current | 35 µA typical in active mode and 0.1 µA in shutdown - extends battery life in IoT edge nodes |
| Ceramic Capacitor Compatibility | Stable with 0.1 µF input and 1.0 µF output ceramics - eliminates need for larger, less reliable capacitor types |
| Overcurrent Protection | Current-limiting folds back output during short-circuit - protects both regulator and PCB traces |
Applications
| Smartphone Baseband Power | Wearable Sensor Node |
|---|---|
Use Scenario: Powering 1.8 V I/O and memory interfaces in LTE/5G baseband SoCs where board area is constrained and thermal headroom is limited. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout post-regulator supplying clean 1.8 V to high-speed digital blocks. Use Value: 30 µVrms noise and ±55 mV load transient response prevent bit errors and timing jitter in high-speed serial links. | Use Scenario: Supplying 1.8 V to ultra-low-power microcontrollers and environmental sensors in compact fitness trackers. IC Role / Device Role / Timing Role: Standby-optimized LDO managing power state transitions between sleep and active modes. Use Value: 0.1 µA shutdown current and Auto-discharge reduce system leakage, extending battery life beyond 6 months on a CR2032 cell. |
| Wireless Earbud Audio Codec | Industrial Wireless Sensor Hub |
Use Scenario: Providing regulated 1.8 V to audio DACs and Class-D amplifiers inside acoustically isolated earbud enclosures. IC Role / Device Role / Timing Role: Low-noise analog supply rail isolating sensitive audio paths from noisy digital domains. Use Value: 73 dB ripple rejection suppresses switching artifacts from adjacent DC/DC converters, preserving SNR > 100 dB. | Use Scenario: Powering LoRaWAN or NB-IoT transceivers and precision ADCs in sealed industrial monitoring nodes deployed in harsh environments. IC Role / Device Role / Timing Role: Robust, temperature-stable LDO operating across −40°C to +85°C without derating. Use Value: ±1.0% output accuracy and 75 ppm/°C tempco ensure consistent sensor calibration and RF performance over full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B182MR-G | Same 1.8 V output, 200 mA rating, SOT-25 package (2.9 mm × 2.8 mm); higher 250 mV dropout at 150 mA | Larger footprint limits use in ultra-dense layouts; lacks Auto-discharge function | Choose when board space permits larger package and Auto-discharge is not required |
| Rohm BD3572EFJ-ME2 | 1.8 V, 200 mA, HTSOP-J8 package (4.0 mm × 4.0 mm); 180 mV dropout; includes thermal shutdown but no Auto-discharge | Designed for higher-power industrial loads; incompatible with sub-1 mm² footprints | Select for thermally demanding applications where package size is secondary to thermal robustness |
Compared with TCR2EN18,LF, the XC6210B182MR-G offers similar electrical specs but requires more PCB area and lacks Auto-discharge, while the BD3572EFJ-ME2 trades miniaturization for enhanced thermal handling - making TCR2EN18,LF uniquely suited for space- and noise-critical portable designs.
Availability
TCR2EN18,LF is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor node supply, and wireless earbud audio codec applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for TCR2EN18,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-reliability semiconductor components, with core expertise in power management, logic, memory, and discrete devices for consumer, industrial, and automotive markets.
The TCR2EN series belongs to Toshiba's CMOS Linear Regulator product line, engineered specifically for ultra-compact, low-noise, low-quiescent-current power delivery in battery-powered portable electronics.
FAQ
What is the dropout voltage specification for TCR2EN18,LF at full rated load?
The TCR2EN18,LF has a typical dropout voltage of 160 mV at 150 mA output current and 2.5 V output - but for its specific 1.8 V output, the datasheet specifies 210 mV typical at 150 mA. This means the device regulates stably as long as VIN remains ≥ 2.01 V, enabling efficient operation from single-cell lithium sources. The value is measured under standard conditions: CIN = 0.1 µF, COUT = 1.0 µF, Tj = 25°C.
Does TCR2EN18,LF support automatic discharge of the output capacitor when disabled?
Yes, TCR2EN18,LF integrates an Auto-discharge function activated when the CONTROL pin is pulled low (≤ 0.4 V). This internally connects VOUT to GND through a controlled discharge path, bringing the output voltage to near-zero within microseconds. This prevents residual voltage from powering downstream circuitry unintentionally - a critical feature for power-gated systems and low-leakage IoT nodes using TCR2EN18,LF.
What ceramic capacitor values are recommended for stable operation of TCR2EN18,LF?
Toshiba specifies 0.1 µF for CIN and 1.0 µF for COUT with ESR < 10 Ω for stable operation of TCR2EN18,LF. These values are validated across the full operating temperature range (−40°C to +85°C) and enable fast transient response (±55 mV) without external compensation. Using smaller or higher-ESR ceramics may degrade regulation or cause oscillation - always place COUT within 1 mm of the VOUT and GND pins per layout guidelines.
What is the quiescent current of TCR2EN18,LF in active and shutdown states?
In active regulation (CONTROL ≥ 1.0 V), TCR2EN18,LF draws 35 µA typical quiescent current at zero load - dropping to 60 µA maximum across temperature and process variation. In shutdown (CONTROL ≤ 0.4 V), standby current is 0.1 µA typical (1.0 µA max), enabling multi-year battery life in maintenance-free sensor applications. These values are measured at Tj = 25°C with VIN = VOUT + 1 V and confirmed in the Electrical Characteristics table on page 4 of the official datasheet.
Is TCR2EN18,LF compatible with lead-free reflow soldering processes?
Yes, TCR2EN18,LF is qualified for lead-free reflow soldering per JEDEC J-STD-020, supporting peak temperatures up to 260°C. Its SDFN4/SDFN4E package uses matte tin plating and is rated for three reflow cycles. The device meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Always refer to Toshiba's "Mounting Instructions" document for recommended pad layout, stencil design, and thermal profile to avoid solder joint voiding or package warpage.
TCR2EN18,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2EN
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.29V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- -
- PSRR:
- 73dB (1kHz)
- 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)
TCR2EN18,LF FAQ
1.How can I place an order for TCR2EN18,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EN18,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 TCR2EN18,LF reliable?
The price and inventory of TCR2EN18,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2EN18,LF is usually 5 days.
3.What payment methods are accepted for TCR2EN18,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EN18,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EN18,LF?
TCR2EN18,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EN18,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 TCR2EN18,LF?
For technical support, including TCR2EN18,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EN18,LF requirements.
6.How does Aetrix verify that TCR2EN18,LF is sourced from the original manufacturer or authorized distributors?
All TCR2EN18,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 TCR2EN18,LF meets industry standards.
7.What is the process for return or replacement of TCR2EN18,LF?
All TCR2EN18,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EN18,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 TCR2EN18,LF part is unused and in its original packaging.
Return procedure for TCR2EN18,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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