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Toshiba Semiconductor and Storage TCR2EN15,LF
- Part No.:
- TCR2EN15,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2EN15,LF.pdf
- Description:
- IC REG LINEAR 1.5V 200MA 4SDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,970
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Product details
Overview
TCR2EN15,LF from Toshiba Electronic Devices & Storage Corporation is a 1.5 V fixed-output CMOS low dropout regulator in ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm), delivering up to 200 mA with 160 mV typical dropout at 150 mA load, ±1.0% output accuracy (for VOUT ≥ 1.8 V; 1.5 V variant specified at ±18 mV), and 35 µVrms output noise - designed for power management in space-constrained portable electronics including cellular phone baseband ICs and RF modules.
For engineers reviewing the TCR2EN15,LF datasheet, TCR2EN15,LF pinout, TCR2EN15,LF application, or TCR2EN15,LF equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and confirmed alternative options for low-noise, low-quiescent-current LDO selection in high-density PCB layouts.
Technical Context
The TCR2EN15,LF implements a CMOS-based LDO architecture with integrated on/off control input, enabling fast enable/disable transitions and auto-discharge functionality via internal pull-down between CONTROL and GND. Its low quiescent current (35 µA typ. at zero load) and high ripple rejection (73 dB typ. at 1 kHz) support battery-powered systems requiring extended standby life and clean supply rails.
It operates across −40°C to +85°C ambient temperature, supports ceramic input/output capacitors (CIN = 0.1 µF, COUT = 1.0 µF), and features overcurrent protection plus thermal-safe operation under defined board-mounting conditions (FR4, 40 mm × 40 mm, 50% copper coverage). Dropout voltage is 270 mV typ. at 150 mA for the 1.5 V output variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.5 V (±18 mV accuracy at 50 mA, per Electrical Characteristics table) |
| Max output current | 200 mA - sufficient for powering core logic or RF front-end ICs in compact mobile devices |
| Dropout voltage | 270 mV typ. at IOUT = 150 mA - enables stable regulation from 1.77 V input, critical for single-cell Li-ion or Li-poly systems |
| Quiescent current | 35 µA typ. at zero load - minimizes battery drain during system sleep modes |
| Output noise | 35 µVrms (typ., 10 Hz–100 kHz, 2.5 V ref; 1.5 V variant extrapolated per family trend to ~25 µVrms) - preserves signal integrity in sensitive analog/RF sections |
| 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 peak deviation (IOUT step 1 mA ↔ 150 mA, COUT = 1.0 µF) - maintains stable rail during burst-mode processor or transceiver activity |
Pinout & Package
TCR2EN15,LF uses 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 assembly. The exposed center electrode must be connected to GND or left open per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Accepts 1.5–5.5 V input; requires 0.1 µF ceramic decoupling close to pin for stability |
| VOUT | Regulated output | Delivers fixed 1.5 V; requires 1.0 µF ceramic capacitor at pin for transient response and PSRR performance |
| GND | Ground reference | Common return path; center pad must be connected to GND plane for thermal and electrical performance |
| CONTROL | Enable/disable control input | Logic-high (≥1.0 V) enables output; logic-low (≤0.4 V) disables output and activates auto-discharge; internal pull-down ensures safe OFF state |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | SDFN4/SDFN4E package (0.8 mm × 0.8 mm) reduces PCB area by >60% vs. standard SOT-23, enabling placement near RF ICs |
| Auto-discharge function | Internally discharges VOUT when CONTROL = LOW, preventing residual voltage from interfering with downstream power sequencing |
| Ceramic capacitor compatibility | Stable with 0.1 µF CIN and 1.0 µF COUT - eliminates need for larger, less reliable tantalum or aluminum electrolytics |
| Low-noise regulation | 35 µVrms noise (2.5 V ref); 1.5 V variant maintains sub-30 µVrms per family scaling - suitable for PLL/VCO and ADC reference supplies |
| High accuracy at low VOUT | ±18 mV tolerance (1.5 V output) ensures reliable operation of 1.5 V I/O interfaces and memory subsystems without margin overhead |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub Supply |
|---|---|
|
Use Scenario: Powering ARM Cortex-M based application processors and memory in sub-50 mm² smartphone modules. IC Role / Device Role / Timing Role: Primary 1.5 V LDO for core logic voltage domain, activated via PMIC-controlled CONTROL line during boot sequence. Use Value: Ultra-small size allows placement directly beneath processor BGA; 270 mV dropout enables use with degraded Li-ion cells down to 1.77 V. |
Use Scenario: Regulating supply for MEMS accelerometers, gyroscopes, and Bluetooth LE SoCs in hearables and fitness trackers. IC Role / Device Role / Timing Role: Always-on 1.5 V rail with auto-discharge, synchronized to sensor wake-up events via CONTROL pin toggling. Use Value: 35 µA quiescent current extends battery life beyond 7 days; low noise prevents interference with 16-bit sensor ADC conversions. |
| IoT Cellular Modem RF Bias | Portable Medical Diagnostic Front-End |
|
Use Scenario: Providing clean 1.5 V bias to LTE/NB-IoT RF power amplifiers and transceivers in compact M.2 modules. IC Role / Device Role / Timing Role: Secondary LDO stage following buck converter, rejecting switching noise via 73 dB PSRR at 1 kHz. Use Value: ±55 mV load transient response prevents AM-to-PM distortion during PA burst transmission; ceramic cap compatibility simplifies layout. |
Use Scenario: Powering precision analog front-ends (AFE) in handheld ECG and pulse oximetry devices. IC Role / Device Role / Timing Role: Dedicated low-noise 1.5 V supply for instrumentation amplifiers and sigma-delta ADC reference buffers. Use Value: Sub-30 µVrms noise floor ensures <1 LSB error in 16-bit medical-grade ADCs; ±18 mV accuracy guarantees consistent gain calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B152MR-G | Same 1.5 V output, 200 mA rating, SOT-25 package (2.9 mm × 2.8 mm); higher 300 mV dropout at 150 mA; 45 µVrms noise | Larger footprint limits use in ultra-compact designs; lower PSRR (65 dB) reduces noise filtering capability | Preferred where board space permits and cost sensitivity outweighs size/noise requirements |
| Rohm BD3985FVM-1.5TR | 1.5 V, 300 mA, VCSP50L1 package (1.2 mm × 1.2 mm); 250 mV dropout; 28 µVrms noise; no auto-discharge | Higher current capacity but lacks CONTROL-driven discharge - requires external circuitry for safe power-down sequencing | Chosen when higher load headroom is needed and auto-discharge is managed externally |
Compared with TCR2EN15,LF, the XC6219B152MR-G trades size and noise performance for broader distributor availability, while the BD3985FVM-1.5TR offers higher current and lower noise but adds complexity in power sequencing due to missing auto-discharge - making TCR2EN15,LF optimal for space-constrained, battery-sensitive designs requiring integrated control and fast discharge.
Availability
TCR2EN15,LF is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hub supply, IoT cellular modem RF bias, portable medical diagnostic front-end, and other applications requiring stable component supply with tight voltage tolerance and ultra-small footprint.
Supply support for TCR2EN15,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 expertise in power management, logic, and analog ICs for consumer, industrial, and automotive markets.
The TCR2EN series targets portable electronics requiring ultra-compact, low-noise, low-quiescent-current LDOs - specifically engineered for high-density board assembly in cellular phones, wearables, and IoT edge nodes.
FAQ
What is the output voltage tolerance of TCR2EN15,LF at 50 mA load?
The TCR2EN15,LF has an output voltage tolerance of ±18 mV at IOUT = 50 mA, as specified in the Electrical Characteristics table (VOUT < 1.8 V condition). This corresponds to ±1.2% accuracy for the 1.5 V nominal output, ensuring reliable operation of 1.5 V logic and interface circuits without additional margining.
Does TCR2EN15,LF require external components for stable operation?
Yes, TCR2EN15,LF requires a 0.1 µF ceramic capacitor at VIN and a 1.0 µF ceramic capacitor at VOUT for stable regulation and optimal transient response. These values are validated in the datasheet's Application Note and Typical Characteristics sections, and using them ensures compliance with the specified ±55 mV load transient response and 73 dB ripple rejection.
What is the maximum input voltage rating for TCR2EN15,LF?
The absolute maximum input voltage for TCR2EN15,LF is 6.0 V, as stated in the Absolute Maximum Ratings table. However, the recommended operating range is 1.5 V to 5.5 V per the Electrical Characteristics test conditions - exceeding 5.5 V risks violating safe operating area limits even if below the absolute max.
How does the CONTROL pin function on TCR2EN15,LF?
The CONTROL pin on TCR2EN15,LF enables or disables the output: applying ≥1.0 V turns the regulator ON, while ≤0.4 V turns it OFF and activates the internal auto-discharge circuit to rapidly deplete VOUT capacitance. An internal pull-down ensures default OFF state if the pin is left unconnected, enhancing system safety during power-up sequencing.
Is TCR2EN15,LF RoHS compliant and lead-free?
Yes, TCR2EN15,LF is RoHS compliant and lead-free, as confirmed by Toshiba's official product documentation and environmental compliance statements. The ",LF" suffix explicitly denotes lead-free plating, and the device meets EU RoHS Directive requirements for restricted substances - essential for global electronics manufacturing and export compliance.
TCR2EN15,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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.37V @ 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)
TCR2EN15,LF FAQ
1.How can I place an order for TCR2EN15,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EN15,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 TCR2EN15,LF reliable?
The price and inventory of TCR2EN15,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2EN15,LF is usually 5 days.
3.What payment methods are accepted for TCR2EN15,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EN15,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EN15,LF?
TCR2EN15,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EN15,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 TCR2EN15,LF?
For technical support, including TCR2EN15,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EN15,LF requirements.
6.How does Aetrix verify that TCR2EN15,LF is sourced from the original manufacturer or authorized distributors?
All TCR2EN15,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 TCR2EN15,LF meets industry standards.
7.What is the process for return or replacement of TCR2EN15,LF?
All TCR2EN15,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EN15,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 TCR2EN15,LF part is unused and in its original packaging.
Return procedure for TCR2EN15,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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