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Microchip Technology TC1107-2.5VOATR
- Part No.:
- TC1107-2.5VOATR
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TC1107-2.5VOATR.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
TC1107-2.5VOATR from Microchip Technology is a fixed-output, 2.5V CMOS low-dropout (LDO) voltage regulator with shutdown control, delivering up to 300mA output current, ±0.5% output voltage accuracy, and ultra-low 50µA typical supply current. It features a 240mV typical dropout voltage at full load and integrated over-temperature and over-current protection, designed for battery-powered medical instruments and portable computing systems.
For engineers reviewing the TC1107-2.5VOATR datasheet, TC1107-2.5VOATR pinout, TC1107-2.5VOATR application, or TC1107-2.5VOATR equivalent, key selection criteria include its 2.5V fixed output, MSOP-8 package, shutdown functionality, 1µF minimum output capacitance requirement, and 0.05µA shutdown current - all critical for low-power, space-constrained embedded designs.
Technical Context
The TC1107-2.5VOATR uses a CMOS pass element to achieve stable regulation across 0–300mA load range without increasing quiescent current with load - unlike legacy bipolar LDOs. Its internal reference includes a dedicated Bypass pin (Pin 4), enabling 470pF capacitor connection to reduce output noise to 260nV/√Hz at 1kHz.
Shutdown is implemented via a logic-level SHDN input (Pin 5) with VIH ≥45% VIN and VIL ≤15% VIN, allowing direct interface with microcontroller I/O ports. Thermal shutdown activates at 150°C junction temperature, with automatic recovery at ~140°C, and stability is guaranteed with only 1µF ceramic output capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±0.5% (±12.5mV) at 25°C; ensures precision biasing for ADC references and low-voltage logic rails. |
| Max Output Current | 300mA continuous; supports moderate-power peripherals like sensors, RF modules, or small displays in portable devices. |
| Dropout Voltage | 270mV max at 300mA load; enables operation from single-cell Li-ion (3.0V min) or two-cell alkaline (3.2V min) sources. |
| Supply Current | 50µA typical at full load; reduces battery drain by 20–60× vs. bipolar regulators, extending runtime in always-on systems. |
| Shutdown Current | 0.05µA typical; allows multi-year shelf life in battery-backed RTC or memory retention applications. |
| PSRR | 60dB at ≤1kHz; suppresses ripple from upstream switching converters, critical for noise-sensitive analog circuitry. |
| Operating Temp | -40°C to +125°C junction range; qualified for industrial and automotive under-hood auxiliary power domains. |
Pinout & Package
TC1107-2.5VOATR is housed in an 8-pin MSOP package (3.0mm × 3.0mm × 1.1mm height), optimized for high-density PCB layouts. Pin 1 is marked by a beveled corner; thermal performance is enhanced by exposed pad grounding (per Microchip MSOP thermal guidelines).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 8) | Unregulated input supply | Accepts 2.7–6.0V; must exceed VOUT + dropout; requires local 1µF bypass if >10" from source or battery-fed. |
| GND (Pin 2) | Power ground reference | Common return for VIN, VOUT, SHDN, and Bypass; must connect to low-impedance ground plane for noise control. |
| VOUT (Pin 3) | Regulated output | Delivers 2.5V ±0.5%; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| Bypass (Pin 4) | Reference bypass input | Connects 470pF capacitor to GND to reduce internal reference noise, lowering output noise to 260nV/√Hz. |
| SHDN (Pin 5) | Active-high shutdown control | Logic high (≥45% VIN) enables regulation; logic low (≤15% VIN) disables output and cuts supply current to 0.05µA. |
| NC (Pins 1,6,7) | No-connect terminals | Must remain unconnected; no internal connection or function - floating or grounded per layout convenience. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50µA typical at full 300mA load - enables >10-year battery life in 10µA-system standby applications. |
| Low-noise Bypass architecture | Dedicated Bypass pin supports 470pF capacitor to cut output noise by >50% versus standard LDO configurations. |
| Fast load transient response | Maintains regulation during 100mA step changes without external compensation - simplifies design for dynamic loads. |
| Thermal & current limiting | Auto-shutdown at 150°C junction temp and 550–650mA short-circuit current limit protect against fault conditions. |
| Wide input voltage range | 2.7–6.0V operation supports diverse sources: Li-ion, LiFePO₄, dual AA/AAA, or post-regulated SMPS outputs. |
Applications
| Portable Medical Sensors | Industrial Handheld Terminals |
|---|---|
Use Scenario: Continuous glucose monitor with Bluetooth LE radio and analog front-end. IC Role / Device Role / Timing Role: Primary 2.5V rail for op-amps, ADC, and BLE SoC I/O domain. Use Value: 50µA quiescent current extends coin-cell life beyond 2 years; 240mV dropout enables use of depleted 2.8V battery cells. |
Use Scenario: Ruggedized barcode scanner with LCD backlight and motor driver. IC Role / Device Role / Timing Role: Clean 2.5V supply for microcontroller core and sensor interface logic. Use Value: 60dB PSRR rejects switching noise from DC-DC converter powering backlight; -40°C to +125°C rating ensures outdoor reliability. |
| Cellular/GSM Modem Modules | RTC + SRAM Backup Systems |
Use Scenario: Low-power GSM/GPRS module in asset tracker with GPS assist. IC Role / Device Role / Timing Role: Stable 2.5V supply for modem baseband IC and SIM interface. Use Value: Shutdown mode reduces system sleep current to <1µA; fast wake-up (<10µs) supports burst data transmission. |
Use Scenario: Real-time clock with 32kB SRAM backup on mainboard with primary 3.3V rail. IC Role / Device Role / Timing Role: Secondary regulated 2.5V rail for RTC oscillator and SRAM retention during main power loss. Use Value: 0.05µA shutdown current enables >5-year backup from single CR2032 cell; ±0.5% accuracy maintains timekeeping integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2502E/TO | Same 2.5V output, but SOT-23-5 package; 1.8µA quiescent current (lower), 250mA max output (lower), no Bypass pin. | Lacks Bypass noise reduction; better suited for ultra-low-IQ sleep modes but not for noise-sensitive analog rails. | Select when lowest possible quiescent current dominates over noise performance and output current headroom. |
| NCP1117ST2.5T3G | 2.5V fixed, TO-220/SOT-223; 8mA quiescent current (higher), 1A output (higher), no shutdown, bipolar process. | No shutdown or Bypass; higher thermal mass suits high-power, non-battery applications with heatsinking. | Select for cost-sensitive, high-current linear post-regulation where PCB area and battery life are secondary. |
Compared with MCP1700-2502E/TO and NCP1117ST2.5T3G, TC1107-2.5VOATR uniquely balances ultra-low IQ (50µA), integrated shutdown, Bypass-enabled low noise, and 300mA capability in a space-saving MSOP - making it optimal for compact, battery-powered systems requiring both precision and efficiency.
Availability
TC1107-2.5VOATR is available at Aetrix Electronics and suitable for portable medical instruments, industrial handheld terminals, and cellular/GSM modem modules requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TC1107-2.5VOATR 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
Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog products, and power management ICs, with ISO/TS-16949 certified wafer fabrication and quality systems.
The TC1107 series was designed as a CMOS-based upgrade to legacy bipolar LDOs, targeting battery-operated systems where ultra-low quiescent current, precise voltage regulation, and small footprint are essential.
FAQ
What is the minimum input voltage required for TC1107-2.5VOATR to regulate at full 300mA load?
The minimum input voltage for TC1107-2.5VOATR is 2.7V, but to maintain regulation at 300mA, VIN must exceed VOUT + dropout voltage. With a maximum dropout of 270mV at 300mA, VIN must be ≥2.77V. The datasheet specifies VIN ≥ VR + VDROPOUT and VIN ≥ 2.7V, so 2.77V is the practical minimum for full-load operation. TC1107-2.5VOATR remains functional down to 2.7V but may drop out below that threshold under heavy load.
Can TC1107-2.5VOATR operate without the Bypass capacitor, and what is the impact on noise performance?
Yes, TC1107-2.5VOATR operates fully functional without the Bypass capacitor on Pin 4. However, omitting the 470pF capacitor increases output noise from 260nV/√Hz to approximately 500–600nV/√Hz at 1kHz, as measured in typical characterization. The Bypass pin directly filters the internal reference; its absence degrades PSRR above 10kHz and increases susceptibility to supply-induced jitter in precision analog circuits. TC1107-2.5VOATR's specification guarantees stability and regulation without it, but noise-sensitive applications should retain the capacitor.
Is TC1107-2.5VOATR pin-compatible with other variants in the TC1107 family, such as TC1107-3.3VOATR?
Yes, TC1107-2.5VOATR is pin-compatible with all TC1107-xxVOATR variants (e.g., TC1107-3.3VOATR, TC1107-5.0VOATR) in the same MSOP-8 package. All share identical pinout, electrical interface, thermal characteristics, and shutdown behavior - only the output voltage differs. This allows design reuse across voltage variants without PCB revision. TC1107-2.5VOATR and TC1107-3.3VOATR both use Pins 1/6/7 as NC, Pin 2 as GND, Pin 3 as VOUT, Pin 4 as Bypass, Pin 5 as SHDN, Pin 8 as VIN.
What is the recommended output capacitor type and value for TC1107-2.5VOATR, and why is ESR important?
TC1107-2.5VOATR requires a minimum 1µF ceramic capacitor from VOUT to GND, with effective series resistance (ESR) between 0.1Ω and 5.0Ω. Ceramic capacitors meet this requirement and provide optimal transient response and stability. Aluminum electrolytic or tantalum types are acceptable if ESR falls within range, but solid tantalum is preferred below -25°C due to aluminum freezing. ESR outside this window risks oscillation or degraded load-step response. TC1107-2.5VOATR's internal compensation is optimized for this ESR range, ensuring reliable operation across temperature and load.
Does TC1107-2.5VOATR include reverse polarity or reverse current protection?
No, TC1107-2.5VOATR does not include reverse polarity or reverse current protection. The device lacks internal blocking diodes or MOSFETs to prevent backfeed from VOUT to VIN when input is absent or reversed. If reverse voltage or back-driving risk exists - for example, in systems with multiple power sources or hot-swap scenarios - external protection (e.g., Schottky diode in series with VIN or ideal diode controller) must be added. TC1107-2.5VOATR's absolute maximum rating specifies VIN down to –0.3V, confirming no inherent reverse-voltage tolerance.
TC1107-2.5VOATR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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):
- 0.48V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TC1107-2.5VOATR FAQ
1.How can I place an order for TC1107-2.5VOATR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1107-2.5VOATR 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 TC1107-2.5VOATR reliable?
The price and inventory of TC1107-2.5VOATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1107-2.5VOATR is usually 5 days.
3.What payment methods are accepted for TC1107-2.5VOATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1107-2.5VOATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1107-2.5VOATR?
TC1107-2.5VOATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1107-2.5VOATR 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 TC1107-2.5VOATR?
For technical support, including TC1107-2.5VOATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1107-2.5VOATR requirements.
6.How does Aetrix verify that TC1107-2.5VOATR is sourced from the original manufacturer or authorized distributors?
All TC1107-2.5VOATR 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 TC1107-2.5VOATR meets industry standards.
7.What is the process for return or replacement of TC1107-2.5VOATR?
All TC1107-2.5VOATR units undergo pre-shipment inspection (PSI). If there is an issue with TC1107-2.5VOATR, 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 TC1107-2.5VOATR part is unused and in its original packaging.
Return procedure for TC1107-2.5VOATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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