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Toshiba Semiconductor and Storage TCR2EF12,LM(CT
- Part No.:
- TCR2EF12,LM(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TCR2EF12,LM(CT.pdf
- Description:
- IC REG LINEAR 1.2V 200MA SMV
- Quantity:
- Payment:
- Shipping:
Inventory:1,497
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Product details
Overview
TCR2EF12,LM(CT) from Toshiba Electronic Devices & Storage Corporation is a 1.2 V fixed-output, 200 mA CMOS low dropout regulator with on/off control input, 380 mV typical dropout at 150 mA load, 35 μVrms output noise, and ±60 mV load transient response (1 mA ↔ 150 mA). It delivers stable bias for RF front-ends and precision analog sensors in space-constrained portable devices.
For engineers reviewing the TCR2EF12,LM(CT) datasheet, TCR2EF12,LM(CT) pinout, TCR2EF12,LM(CT) application, or TCR2EF12,LM(CT) equivalent, key selection criteria include dropout voltage at 1.2 V output, ceramic capacitor compatibility (CIN ≥ 0.1 μF, COUT ≥ 1.0 μF), Auto-discharge functionality, and SOT-553 (ESV) package thermal performance under −40°C to +85°C operation.
Technical Context
The TCR2EF12,LM(CT) implements a CMOS-based LDO architecture with integrated P-channel pass transistor, enabling low quiescent current (35 μA typ.) and fast load transient recovery without external compensation. Its control input supports active-high enable logic with defined ON/OFF thresholds (VCT(ON) ≥ 1.0 V, VCT(OFF) ≤ 0.4 V).
Designed for noise-sensitive rails, it achieves 73 dB ripple rejection at 1 kHz and maintains ±1.0% output accuracy for VOUT ≥ 1.8 V - though at 1.2 V output, accuracy is specified as ±18 mV - while supporting ceramic output capacitors with ESR < 10 Ω to ensure stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±18 mV (−40°C to +85°C), suitable for core bias of low-voltage MCUs and RF ICs. |
| Max Output Current | 200 mA DC, enabling single-rail power for mixed-signal SoCs or sensor signal chains. |
| Dropout Voltage | 380 mV typ. at 150 mA (VIN ≥ 1.58 V), allowing operation from 1.8 V or 2.5 V intermediate rails. |
| Output Noise | 35 μVrms (10 Hz–100 kHz), minimizing phase noise in VCO/PLL supply domains. |
| Load Transient Response | ±60 mV deviation (1 mA ↔ 150 mA step, COUT = 1.0 μF), critical for burst-mode wireless transceivers. |
| Quiescent Current | 35 μA typ. at zero load, extending battery life in always-on IoT endpoints. |
| Operating Temp | −40°C to +85°C ambient, validated for industrial-grade embedded applications. |
Pinout & Package
TCR2EF12,LM(CT) is packaged in ESV (SOT-553), a 1.6 mm × 1.6 mm × 0.55 mm ultra-small outline package with 5 terminals and 3.0 mg typical weight. Pin assignment is standardized across TCR2EF/EE series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output | Delivers stable 1.2 V; requires ≥1.0 μF ceramic capacitor placed adjacent to pin for transient stability. |
| CONTROL | Enable input (active-high) | Drives internal pass transistor; logic HIGH (≥1.0 V) enables regulation, LOW (≤0.4 V) disables output and activates Auto-discharge. |
| GND | Ground reference | Common return path for input, output, and control circuits; must be low-impedance with wide copper pour. |
| NC | No-connect terminal | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
| VIN | Input supply | Accepts 1.5–5.5 V; requires ≥0.1 μF ceramic decoupling capacitor within 2 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Actively discharges VOUT via internal switch when CONTROL = LOW, preventing residual voltage hold-up in power-gated systems. |
| Ceramic capacitor support | Stable with CIN = 0.1 μF and COUT = 1.0 μF (ESR < 10 Ω), eliminating need for larger, less reliable tantalum or aluminum electrolytics. |
| Low-noise regulation | 35 μVrms output noise enables direct use in RF synthesizer VCO supplies without additional filtering stages. |
| High ripple rejection | 73 dB @ 1 kHz allows clean 1.2 V rail even when sourced from noisy switching converter outputs. |
| Pull-down on CONTROL | Internal pull-down ensures default OFF state if CONTROL is left unconnected, enhancing system safety during boot or reset. |
Applications
| Wireless Sensor Node Power | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Battery-powered BLE/Wi-Fi sensor node with intermittent RF transmission and low-power sleep cycles. IC Role / Device Role / Timing Role: Primary 1.2 V LDO supplying MCU core, RF transceiver, and analog front-end ADC. Use Value: 35 μA quiescent current extends shelf life; Auto-discharge prevents leakage-induced wake-up; ±60 mV transient response accommodates RF burst loads. |
Use Scenario: Handheld ECG or pulse oximeter requiring ultra-low-noise analog signal conditioning. IC Role / Device Role / Timing Role: Dedicated 1.2 V supply for instrumentation amplifier and sigma-delta ADC reference domain. Use Value: 35 μVrms noise avoids SNR degradation; 73 dB ripple rejection suppresses digital switching coupling; ±18 mV accuracy meets medical-grade bias tolerance. |
| Industrial PLC I/O Module | Wearable Audio Processing |
|
Use Scenario: DIN-rail mounted PLC module with isolated 3.3 V/5 V inputs powering local 1.2 V FPGA logic. IC Role / Device Role / Timing Role: Local point-of-load regulator converting isolated 3.3 V to 1.2 V for FPGA core voltage. Use Value: 380 mV dropout enables efficient conversion from 3.3 V rail; SOT-553 footprint saves PCB area in dense I/O modules; −40°C to +85°C rating ensures field reliability. |
Use Scenario: True wireless stereo (TWS) earbud with compact form factor and multi-day battery life. IC Role / Device Role / Timing Role: 1.2 V supply for DSP and Bluetooth baseband processor during active audio playback. Use Value: 1.6 mm × 1.6 mm ESV package fits tight acoustic cavities; 35 μA IQ minimizes standby drain; fast transient response sustains audio fidelity during dynamic volume changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B122MR-G | 1.2 V, 200 mA, 250 mV dropout (typ. @ 100 mA), 20 μVrms noise, SOT-25 package only. | Lacks Auto-discharge and CONTROL pin; requires external enable circuitry for power sequencing. | Preferred where lowest noise is critical and sequencing simplicity outweighs discharge requirement. |
| Rohm BD3985FVM-12 | 1.2 V, 200 mA, 300 mV dropout (typ. @ 150 mA), 45 μVrms noise, includes thermal shutdown but no Auto-discharge. | Higher noise and no integrated discharge; uses SOT-23-5, slightly larger than ESV but more widely available. | Selected when thermal protection is prioritized over discharge behavior and board space is less constrained. |
Compared with TCR2EF12,LM(CT), the XC6219B122MR-G offers lower noise but no control interface, while the BD3985FVM-12 provides thermal safety at the cost of higher noise and no Auto-discharge - making TCR2EF12,LM(CT) optimal for compact, sequenced, low-noise systems requiring active discharge.
Availability
TCR2EF12,LM(CT) is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instrumentation, and industrial PLC I/O modules requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for TCR2EF12,LM(CT) 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-reliability semiconductor solutions for industrial, automotive, and consumer applications, with expertise in analog, power, and logic ICs.
The TCR2EF series targets space-constrained, noise-sensitive applications demanding fast transient response and ultra-low quiescent current - especially in battery-powered and RF-critical systems.
FAQ
What is the maximum input voltage for TCR2EF12,LM(CT)?
The absolute maximum input voltage for TCR2EF12,LM(CT) is 6.0 V, but the recommended operating range is 1.5 V to 5.5 V. Exceeding 5.5 V may trigger overvoltage stress not covered by warranty, and operation above 6.0 V risks permanent damage. Always maintain VIN ≤ VOUT + 1.0 V for optimal dropout performance in normal use.
Does TCR2EF12,LM(CT) require an external pull-up on the CONTROL pin?
No, TCR2EF12,LM(CT) includes an internal pull-down resistor on the CONTROL pin, ensuring the device remains disabled (output discharged) when the pin is left unconnected or driven LOW. An external pull-up is unnecessary unless active-HIGH sequencing with precise timing control is required - in which case a 100 kΩ resistor to VIN is sufficient.
Can TCR2EF12,LM(CT) be used with a 1.0 μF ceramic output capacitor?
Yes, TCR2EF12,LM(CT) is explicitly characterized and stabilized with a 1.0 μF ceramic capacitor (X5R/X7R, ESR < 10 Ω) on VOUT. This eliminates the need for larger, higher-ESR alternatives and supports the ±60 mV load transient specification. Placement within 2 mm of the VOUT pin is mandatory for stability.
What is the dropout voltage of TCR2EF12,LM(CT) at 100 mA load?
Per Toshiba's dropout voltage table, TCR2EF12,LM(CT) exhibits a typical dropout voltage of 380 mV at 150 mA. At 100 mA, the value is lower - approximately 320 mV (interpolated from the 1.2 V/1.25 V curve) - enabling reliable regulation from a 1.52 V minimum input. This supports use with partially discharged Li-ion or coin-cell sources.
Is TCR2EF12,LM(CT) RoHS compliant and lead-free?
Yes, TCR2EF12,LM(CT) is RoHS compliant and lead-free per EU Directive 2011/65/EU, with termination finish of matte tin. The ESV (SOT-553) package uses halogen-free molding compound and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life at ≤30°C/60% RH.
TCR2EF12,LM(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2EF
- Package/Case:
- SC-74A, SOT-753
- 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.57V @ 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:
- SMV
TCR2EF12,LM(CT FAQ
1.How can I place an order for TCR2EF12,LM(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EF12,LM(CT 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 TCR2EF12,LM(CT reliable?
The price and inventory of TCR2EF12,LM(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2EF12,LM(CT is usually 5 days.
3.What payment methods are accepted for TCR2EF12,LM(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EF12,LM(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EF12,LM(CT?
TCR2EF12,LM(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EF12,LM(CT 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 TCR2EF12,LM(CT?
For technical support, including TCR2EF12,LM(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EF12,LM(CT requirements.
6.How does Aetrix verify that TCR2EF12,LM(CT is sourced from the original manufacturer or authorized distributors?
All TCR2EF12,LM(CT 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 TCR2EF12,LM(CT meets industry standards.
7.What is the process for return or replacement of TCR2EF12,LM(CT?
All TCR2EF12,LM(CT units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EF12,LM(CT, 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 TCR2EF12,LM(CT part is unused and in its original packaging.
Return procedure for TCR2EF12,LM(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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