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Toshiba Semiconductor and Storage TCR15AG25,LF
- Part No.:
- TCR15AG25,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 6-XFBGA, WLCSP
- Datasheet:
-
TCR15AG25,LF.pdf
- Description:
- IC REG LINEAR 2.5V 1.5A 6WCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,786
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Product details
Overview
TCR15AG25,LF from Toshiba Electronic Devices & Storage Corporation is a 1.5 A CMOS ultra-low-dropout linear regulator with fixed 2.5 V output, on/off control input, and ultra-high ripple rejection (95 dB @ 1 kHz). It features 120 mV typical dropout at 1.5 A, fast load transient response (±100/115 mV), and operates from −40°C to +85°C. It is designed for high-density portable power rails in cellular phones and wearables.
For engineers reviewing the TCR15AG25,LF datasheet, TCR15AG25,LF pinout, TCR15AG25,LF application, or TCR15AG25,LF equivalent, this page delivers verified electrical specs, WCSP6F package layout, thermal and protection behavior, and real-world design constraints for low-noise, space-constrained LDO deployment.
Technical Context
The TCR15AG25,LF uses a CMOS pass transistor architecture with separate bias (VBIAS) and input (VIN) supplies to achieve ultra-low dropout and high PSRR. Its control logic integrates under-voltage lockout (0.5–0.65 V), thermal shutdown, and auto-discharge via internal 10 Ω pull-down on VOUT when CONTROL = LOW.
It requires three ceramic capacitors: ≥4.7 μF at VIN, ≥1.0 μF at VBIAS, and ≥4.7 μF at VOUT - all placed close to pins to ensure stability. The SENSE pin (tied to VOUT in fixed-output configuration) enables remote voltage sensing for improved regulation accuracy at the load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±1.0% (typ. ±25 mV) at IOUT = 50 mA; ensures stable core voltage for 2.5 V logic and analog subsystems. |
| Dropout Voltage | 120 mV typ. at IOUT = 1.5 A and VBIAS = 3.3 V; enables operation with VIN as low as 2.62 V while maintaining regulation. |
| Ripple Rejection | 95 dB typ. @ 1 kHz (VIN ripple); suppresses switching noise from upstream DC-DC converters in PMIC architectures. |
| Load Transient Response | −100 mV / +115 mV peak deviation @ 0.01 A ↔ 1.5 A step, COUT = 4.7 μF; maintains system stability during CPU burst loads. |
| Quiescent Current | 25 μA typ. (ON mode); minimizes standby power loss in battery-powered always-on functions. |
| Operating Temperature | −40°C to +85°C junction; supports industrial-grade portable equipment without derating. |
| Package | WCSP6F (0.8 mm × 1.2 mm, 0.33 mm max height); enables <1 mm² board area usage for ultra-thin mobile designs. |
Pinout & Package
TCR15AG25,LF is housed in the ultra-small WCSP6F wafer-level chip-scale package (0.8 mm × 1.2 mm, 0.33 mm max thickness, 0.61 mg typical weight), optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output | Delivers stable 2.5 V to load; connects to SENSE pin for remote sensing in fixed-output configuration. |
| VIN | Main input supply | Accepts 2.62 V to 6.0 V; must be decoupled with ≥4.7 μF ceramic capacitor near the pin. |
| SENSE | Output voltage feedback | Internally tied to VOUT for fixed-output variants; enables compensation of PCB trace IR drop at remote loads. |
| CONTROL | Enable/disable input | Active-HIGH logic: >1.0 V enables regulator; ≤0.4 V disables output and activates auto-discharge path. |
| GND | Power ground | Common reference for VIN, VOUT, VBIAS, and CONTROL; requires low-impedance connection to minimize noise coupling. |
| VBIAS | Bias supply input | Provides gate drive for CMOS pass element; range depends on VOUT (e.g., 3.9 V to 5.5 V for 2.5 V output). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 120 mV typ. at full 1.5 A load enables use with tightly constrained input margins in multi-rail systems. |
| High PSRR | 95 dB @ 1 kHz reduces sensitivity to noise from adjacent switching regulators, critical for RF and audio subsystems. |
| Auto-discharge | Internal 10 Ω discharge path pulls VOUT to GND within microseconds after CONTROL deactivation, preventing floating outputs. |
| Inrush current reduction | Soft-start circuit limits input surge during enable, protecting upstream power sources and reducing EMI. |
| Thermal shutdown & OCP | Integrated protection triggers at 150°C junction and limits output current to prevent damage during overload or short-circuit events. |
Applications
| Smartphone Application Processor Core Rail | Wearable Sensor Hub Power |
|---|---|
Use Scenario: Powers ARM Cortex-A/M series cores requiring clean, tightly regulated 2.5 V supply during dynamic DVFS transitions. IC Role / Device Role / Timing Role: Primary LDO delivering low-noise, fast-transient power to processor VDD_IO or GPU domains. Use Value: 120 mV dropout and ±115 mV load transient response maintain voltage within spec during 1.5 A burst loads, avoiding brownouts. | Use Scenario: Supplies 2.5 V to MEMS accelerometers, gyroscopes, and environmental sensors in compact fitness trackers. IC Role / Device Role / Timing Role: Low-quiescent, space-optimized LDO enabling always-on sensor fusion with minimal battery drain. Use Value: 25 μA quiescent current and WCSP6F footprint extend battery life while fitting sub-10 mm² PCB areas. |
| IoT Cellular Modem RF Front-End Bias | Medical Patch Monitor Analog Signal Chain |
Use Scenario: Provides stable 2.5 V bias to LTE/NB-IoT transceiver PA drivers and LNAs where switching noise must be suppressed. IC Role / Device Role / Timing Role: Noise-isolated post-regulator filtering residual ripple from primary buck converter. Use Value: 95 dB PSRR at 1 kHz attenuates DC-DC switching harmonics, preserving RF signal integrity and EVM performance. | Use Scenario: Powers precision ADCs, op-amps, and low-power microcontrollers in disposable medical patches requiring long shelf life. IC Role / Device Role / Timing Role: Ultra-low-noise, low-drift LDO ensuring accurate analog measurements over temperature. Use Value: 52 μVrms output noise and 60 ppm/°C tempco support sub-16-bit measurement accuracy in clinical-grade devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6215D252MR-G | 2.5 V fixed, 1 A rating, 150 mV dropout @ 1 A, SOT-25 package (2.9 × 2.8 mm) | Lower current capability and larger footprint; lacks VBIAS rail and auto-discharge | Choose for cost-sensitive, lower-current designs where board space and advanced features are secondary. |
| Rohm BD3572EFJ-ME2 | 2.5 V fixed, 1.5 A, 250 mV dropout @ 1.5 A, HTSOP-J8 package (4.9 × 6.0 mm) | Higher dropout, larger package, no VBIAS separation; includes soft-start but no auto-discharge | Prefer when thermal margin is abundant and discrete bias supply is unavailable; avoid for ultra-thin or fast-shutdown systems. |
Compared with TCR15AG25,LF, the XC6215D252MR-G offers lower cost but sacrifices 0.5 A drive and key features like auto-discharge and VBIAS optimization; the BD3572EFJ-ME2 provides same current but doubles dropout and occupies >30× more board area, limiting use in space-constrained portable designs.
Availability
TCR15AG25,LF is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor hubs, IoT cellular modems, and medical patch monitors requiring stable component supply across high-volume production cycles.
Supply support for TCR15AG25,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-performance, miniaturized semiconductor solutions for consumer, industrial, and automotive markets, with emphasis on energy efficiency and reliability.
The TCR15AG series targets ultra-compact, high-current LDO applications in portable electronics, delivering ultra-low dropout and high PSRR in wafer-level packages to meet shrinking form factor demands.
FAQ
What is the maximum input voltage for TCR15AG25,LF?
The absolute maximum input voltage (VIN) for TCR15AG25,LF is 6.0 V. However, the recommended operating range is VOUT + VDO to VBIAS, where VDO is the dropout voltage (120 mV typ. at 1.5 A). For reliable operation at full load, VIN should be ≥2.62 V. Exceeding 6.0 V risks permanent damage per Absolute Maximum Ratings.
Does TCR15AG25,LF require an external resistor network for output voltage setting?
No. TCR15AG25,LF is a fixed-output variant delivering 2.5 V without external resistors. Unlike the adjustable TCR15AGADJ, it integrates internal feedback and requires only proper capacitor placement (≥4.7 μF at VIN/VOUT, ≥1.0 μF at VBIAS) and SENSE-to-VOUT connection for optimal regulation.
How does the VBIAS pin function in TCR15AG25,LF?
The VBIAS pin supplies gate drive voltage to the CMOS pass transistor independently of VIN. For TCR15AG25,LF (2.5 V output), VBIAS must be ≥3.9 V (VOUT + 1.4 V) and ≤5.5 V. This separation allows lower VIN operation while maintaining low dropout and high PSRR, and mandates a dedicated ≥1.0 μF ceramic decoupling capacitor.
What happens to the output when the CONTROL pin is pulled low?
When CONTROL is pulled to ≤0.4 V, TCR15AG25,LF disables regulation and activates its internal auto-discharge path (10 Ω typical) between VOUT and GND. This rapidly discharges the output capacitor, bringing VOUT to near-zero volts within microseconds - essential for safe power sequencing and preventing back-powering of downstream circuits.
Can TCR15AG25,LF operate without the SENSE pin connection?
No. For fixed-output variants like TCR15AG25,LF, the SENSE pin must be connected directly to the VOUT pin (per datasheet Pin Assignment and Application Note). Leaving SENSE unconnected or floating violates the internal feedback loop, causing regulation failure, output instability, or excessive voltage error beyond ±1.0% specification.
TCR15AG25,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR15AG
- Package/Case:
- 6-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.648V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- -
- PSRR:
- 95dB ~ 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Current Limit, Thermal Shutdown, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WCSP (1.2x0.80)
TCR15AG25,LF FAQ
1.How can I place an order for TCR15AG25,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR15AG25,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 TCR15AG25,LF reliable?
The price and inventory of TCR15AG25,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR15AG25,LF is usually 5 days.
3.What payment methods are accepted for TCR15AG25,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR15AG25,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR15AG25,LF?
TCR15AG25,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR15AG25,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 TCR15AG25,LF?
For technical support, including TCR15AG25,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR15AG25,LF requirements.
6.How does Aetrix verify that TCR15AG25,LF is sourced from the original manufacturer or authorized distributors?
All TCR15AG25,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 TCR15AG25,LF meets industry standards.
7.What is the process for return or replacement of TCR15AG25,LF?
All TCR15AG25,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR15AG25,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 TCR15AG25,LF part is unused and in its original packaging.
Return procedure for TCR15AG25,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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