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Toshiba Semiconductor and Storage TCR5RG14A,LF
- Part No.:
- TCR5RG14A,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
TCR5RG14A,LF.pdf
- Description:
- LDO REG, IOUT: 500MA VOUT: 1.4V
- Quantity:
- Payment:
- Shipping:
Inventory:164
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Product details
Overview
TCR5RG14A,LF from Toshiba Electronic Devices & Storage Corporation is a CMOS low-dropout linear regulator delivering fixed 1.4 V output at up to 500 mA, featuring ultra-high ripple rejection (100 dB @ 1 kHz), 150 mV typical dropout at 500 mA, and ultra-small WCSP4F package (0.645 mm × 0.645 mm). It integrates overcurrent protection, thermal shutdown, auto-discharge, and operates across −40°C to +85°C - ideal for space-constrained portable power rails in cellular phones and wearables.
For engineers reviewing the TCR5RG14A,LF datasheet, TCR5RG14A,LF pinout, TCR5RG14A,LF application, or TCR5RG14A,LF equivalent, this page delivers verified electrical specs, validated pin functions, real-world load transient behavior, ceramic capacitor compatibility (1.0 μF input/output), and precise selection guidance against comparable LDOs for battery-powered, high-density PCB designs.
Technical Context
The TCR5RG14A,LF employs a CMOS-based bandgap reference and low-pass filter architecture to achieve ultra-low output noise (5 μVrms) and frequency-dependent ripple rejection - 100 dB at 1 kHz, 93 dB at 10 kHz, down to 59 dB at 1 MHz - all measured at VOUT = 2.8 V (typical test condition). Its control logic includes pull-down on CONTROL pin and hysteresis-driven bias current switching to optimize performance during load transients.
It operates within VIN = 1.8–5.5 V and supports stable regulation with ≥1.0 μF ceramic capacitors on both input and output. The device enters auto-discharge mode when CONTROL is pulled low, using a 30 Ω internal discharge path to rapidly collapse VOUT - critical for system-level power sequencing in portable devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.4 V ±36 mV (−40°C to +85°C), enabling precise biasing of low-voltage logic and RF circuitry. |
| Max Output Current | 500 mA continuous - sufficient to power multiple SoC cores or sensor subsystems from a single rail. |
| Dropout Voltage | 320 mV typical at IOUT = 500 mA (VOUT = 1.4 V), allowing operation with minimal headroom (e.g., 1.8 V input → 1.4 V output). |
| Ripple Rejection | 100 dB @ 1 kHz - suppresses switching noise from upstream DC-DC converters feeding noisy intermediate rails. |
| Quiescent Current | 7 μA typical at zero load - extends battery life in always-on standby modes without sacrificing regulation accuracy. |
| Output Noise | 5 μVrms (10 Hz–100 kHz) - meets stringent noise requirements for ADC references and RF front-end biasing. |
| Package | WCSP4F (0.645 mm × 0.645 mm, 0.33 mm max height) - enables <0.42 mm² footprint, compatible with fine-pitch 0.4 mm ball pitch assembly. |
Pinout & Package
TCR5RG14A,LF uses the ultra-compact WCSP4F wafer-level chip-scale package (0.645 mm × 0.645 mm, thickness ≤ 0.33 mm), weighing only 0.26 mg. Its four solder bumps are arranged in a 2×2 grid with top-view labeling matching standard CMOS LDO pinout conventions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Accepts 1.8–5.5 V input; requires ≥1.0 μF ceramic capacitor placed adjacent to minimize impedance and ensure stability. |
| VOUT | Regulated output | Delivers fixed 1.4 V ±36 mV; connects directly to load; output capacitor must be placed within 1 mm for optimal transient response. |
| CONTROL | Enable/disable control input | Active-high logic: ≥0.9 V enables regulation; ≤0.5 V disables and activates auto-discharge (30 Ω path to GND). |
| GND | Ground reference | Common return for VIN, VOUT, and CONTROL; must be connected to low-impedance ground plane to maintain PSRR and thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high ripple rejection | 100 dB @ 1 kHz enables clean power delivery even when fed from noisy buck converter outputs. |
| Auto-discharge function | 30 Ω internal discharge path collapses VOUT rapidly upon disable - eliminates hold-up voltage that could delay system reset. |
| Ceramic capacitor compatibility | Stable with ≥1.0 μF X5R/X7R ceramics on both input and output - eliminates need for larger, less reliable tantalum or aluminum electrolytics. |
| Low-noise regulation | 5 μVrms integrated noise (10 Hz–100 kHz) supports precision analog circuits without external filtering. |
| Thermal and overcurrent protection | Thermal shutdown triggers at 160°C junction temperature; current limit clamps at 700 mA typical - prevents damage during short-circuit events. |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub Supply |
|---|---|
|
Use Scenario: Powers baseband processor I/O and memory interface rails in LTE/5G smartphones where board area is constrained and EMI sensitivity is high. IC Role / Device Role / Timing Role: Primary low-noise LDO supplying 1.4 V to DDR I/O buffers and SerDes PHYs requiring tight voltage tolerance and fast load transient recovery. Use Value: 40 mV load transient deviation (1 mA ↔ 500 mA) and 100 dB ripple rejection prevent data corruption during burst transmission. |
Use Scenario: Supplies 1.4 V to ultra-low-power environmental sensors (accelerometer, gyroscope, barometer) in compact fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO maintaining regulation during sleep/wake cycles; CONTROL pin synchronized with MCU wake signal for zero-quiescent power in deep sleep. Use Value: 7 μA quiescent current and auto-discharge reduce average system current by >2 μA versus non-discharge alternatives, extending battery life by weeks. |
| Medical Patch Monitor Bias | IoT Edge Node RF Subsystem |
|
Use Scenario: Provides regulated 1.4 V to analog front-end amplifiers and ADCs in disposable wireless ECG patches. IC Role / Device Role / Timing Role: Precision analog supply rail with low noise and tight initial accuracy (±36 mV) to preserve signal integrity in sub-mV biopotential measurements. Use Value: 5 μVrms output noise ensures ≥16-bit ENOB for 12-bit ADCs without post-processing, meeting ISO 14155 clinical trial requirements. |
Use Scenario: Powers BLE/Wi-Fi transceiver RF sections (LNA, mixer, PA bias) in battery-operated smart home sensors. IC Role / Device Role / Timing Role: Clean local supply decoupling LDO placed adjacent to RF IC; high PSRR suppresses digital switching noise coupling into sensitive receive paths. Use Value: 93 dB PSRR at 10 kHz and 67 dB at 100 kHz attenuates clock harmonics and digital noise from host MCU, improving receiver sensitivity by 3–5 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6214B142MR-G | Same 1.4 V output, 500 mA rating, SOT-25 package (2.9 mm × 2.8 mm); PSRR = 70 dB @ 1 kHz - 30 dB lower than TCR5RG14A,LF. | Requires larger PCB area; lacks auto-discharge; higher quiescent current (25 μA vs. 7 μA). | Choose when board space permits larger package and auto-discharge is unnecessary; avoid for high-density portable designs. |
| Rohm BD70522GUL-W | 1.4 V output, 500 mA, DFN1212-4 package (1.2 mm × 1.2 mm); PSRR = 85 dB @ 1 kHz; no auto-discharge; 250 mV dropout at 500 mA. | Smaller than SOT-25 but 3.7× larger footprint than WCSP4F; higher dropout limits use with low-input rails. | Prefer when thermal performance under sustained 500 mA load is prioritized over size; not suitable for <0.5 mm² footprint constraints. |
Compared with XC6214B142MR-G and BD70522GUL-W, the TCR5RG14A,LF delivers superior PSRR, lowest quiescent current, smallest footprint, and integrated auto-discharge - making it the only option meeting simultaneous requirements for ultra-miniaturization, noise-sensitive analog loads, and rapid power sequencing in next-gen portable electronics.
Availability
TCR5RG14A,LF is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hub supply, medical patch monitor bias, IoT edge node RF subsystems, and other applications requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TCR5RG14A,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 high-reliability semiconductor solutions for consumer, industrial, and automotive markets, with expertise in power management, logic, and analog ICs.
The TCR5RG series was developed specifically for ultra-compact, low-noise power regulation in portable electronics - emphasizing miniaturization (WCSP4F), high PSRR, and ultra-low IQ to extend battery life without compromising analog performance.
FAQ
What is the maximum input voltage for the TCR5RG14A,LF?
The TCR5RG14A,LF supports an absolute maximum input voltage of 6.0 V, but its recommended operating range is 1.8 V to 5.5 V. Operation above 5.5 V risks exceeding absolute maximum ratings and may trigger thermal shutdown or permanent damage. For reliable 1.4 V output, VIN must remain ≥1.8 V per datasheet specifications.
Does the TCR5RG14A,LF require external components for stable operation?
Yes - the TCR5RG14A,LF requires ≥1.0 μF ceramic capacitors on both VIN and VOUT pins, placed as close as possible to the device. These capacitors ensure loop stability, suppress high-frequency noise, and enable specified load transient response (±40 mV). No additional compensation components are needed due to internal optimization for ceramic capacitors.
How does the CONTROL pin function on the TCR5RG14A,LF?
The CONTROL pin is an active-high enable input: applying ≥0.9 V enables regulation, while ≤0.5 V disables the LDO and activates auto-discharge via a 30 Ω internal path from VOUT to GND. This allows rapid VOUT collapse during system sleep, preventing unintended leakage or latch-up in downstream circuitry powered by TCR5RG14A,LF.
What is the output voltage accuracy of the TCR5RG14A,LF over temperature?
The TCR5RG14A,LF maintains output voltage accuracy of ±36 mV across −40°C to +85°C ambient temperature. This corresponds to ±2.57% error for the 1.4 V nominal output and is guaranteed per datasheet Electrical Characteristics table - critical for powering voltage-sensitive logic and analog blocks without external trimming.
Can the TCR5RG14A,LF be used with input voltages below 1.8 V?
No - the TCR5RG14A,LF is not specified for operation below 1.8 V input. The datasheet defines 1.8 V as the minimum operating VIN to ensure proper regulation, dropout margin, and protection circuit functionality. Attempting operation at lower VIN may result in unregulated output, failure to start, or undefined behavior of overcurrent/thermal protection features.
TCR5RG14A,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR5RG
- Package/Case:
- 4-XFBGA, WLCSP
- 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):
- 1.4V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 13 µA
- Current - Supply (Max):
- -
- PSRR:
- 100dB ~ 59dB (1kHz ~ 1MHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WCSPF (0.65x0.65)
TCR5RG14A,LF FAQ
1.How can I place an order for TCR5RG14A,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR5RG14A,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 TCR5RG14A,LF reliable?
The price and inventory of TCR5RG14A,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR5RG14A,LF is usually 5 days.
3.What payment methods are accepted for TCR5RG14A,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR5RG14A,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR5RG14A,LF?
TCR5RG14A,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR5RG14A,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 TCR5RG14A,LF?
For technical support, including TCR5RG14A,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR5RG14A,LF requirements.
6.How does Aetrix verify that TCR5RG14A,LF is sourced from the original manufacturer or authorized distributors?
All TCR5RG14A,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 TCR5RG14A,LF meets industry standards.
7.What is the process for return or replacement of TCR5RG14A,LF?
All TCR5RG14A,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR5RG14A,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 TCR5RG14A,LF part is unused and in its original packaging.
Return procedure for TCR5RG14A,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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