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Microchip Technology TC1107-2.5VOA
- Part No.:
- TC1107-2.5VOA
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TC1107-2.5VOA.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,410
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Product details
Overview
TC1107-2.5VOA from Microchip Technology is a fixed-output 2.5V CMOS low-dropout (LDO) voltage regulator with ±0.5% output accuracy, 300mA maximum output current, and ultra-low 50μA typical supply current. It features shutdown control, bypass input for noise reduction, and thermal/overcurrent protection - designed for battery-powered medical instruments and portable computing systems.
For engineers reviewing the TC1107-2.5VOA datasheet, TC1107-2.5VOA pinout, TC1107-2.5VOA application, or TC1107-2.5VOA equivalent, key selection criteria include dropout voltage at full load (270mV max), shutdown current (0.05μA typ), PSRR (60dB @ ≤1kHz), and stability with only 1μF output capacitance.
Technical Context
The TC1107-2.5VOA uses a CMOS pass element to achieve stable regulation across 0–300mA load range without supply current increase - unlike legacy bipolar LDOs. Its reference bypass input accepts a 470pF capacitor to reduce internal reference noise, directly lowering output noise to 260nV/√Hz at 1kHz.
Shutdown logic is CMOS-compatible: SHDN ≥45% VIN enables regulation; ≤15% VIN disables it, dropping VOUT to zero and reducing ISS to 0.05μA. Thermal shutdown activates at 150°C junction temperature, with automatic recovery at ~140°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±0.5% (±12.5mV) over -40°C to +125°C |
| Max Output Current | 300mA - supports rail powering of microcontrollers and analog sensors |
| Dropout Voltage | 270mV max at 300mA - enables operation from 2.77V input in 2.5V systems |
| Supply Current | 50μA typical at full load - 20–60× lower than bipolar LDOs, extending battery life |
| PSRR | 60dB @ ≤1kHz - suppresses ripple from upstream SMPS in post-regulation applications |
| Output Noise | 260nV/√Hz @ 1kHz - minimized via optional 470pF bypass capacitor on reference node |
| Shutdown Current | 0.05μA typical - reduces system standby power to near-zero in portable devices |
Pinout & Package
TC1107-2.5VOA is supplied in an 8-pin SOIC package (JEDEC MS-012AA, 3.99mm × 4.90mm body, 1.27mm pitch), rated for -40°C to +125°C junction temperature. Pin 1 is marked with a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Regulated output | Delivers stable 2.5V to load; requires ≥1μF ceramic or tantalum capacitor to GND |
| GND (Pin 2) | Ground reference | Primary return path for load and internal circuitry; must connect to low-impedance ground plane |
| NC (Pin 3) | No-connect | Internally unconnected; must remain floating or tied to GND (not VIN) |
| Bypass (Pin 4) | Reference bypass input | Accepts 470pF capacitor to GND to reduce reference noise and improve output spectral purity |
| SHDN (Pin 5) | Shutdown control | CMOS-level input: high ≥45% VIN enables regulator; low ≤15% VIN disables output and cuts supply current to 0.05μA |
| NC (Pin 6) | No-connect | Internally unconnected; must remain floating |
| NC (Pin 7) | No-connect | Internally unconnected; must remain floating |
| VIN (Pin 8) | Unregulated input | Accepts 2.7–6.0V; minimum VIN = VOUT + dropout (≥2.77V at 300mA) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50μA typical at full 300mA load - enables multi-year battery life in always-on instrumentation |
| Low-noise operation with bypass | 260nV/√Hz output noise reduced further by 470pF capacitor on Bypass pin - critical for ADC reference rails |
| Fast transient response | Maintains regulation during rapid load steps (e.g., MCU wake-up bursts) without external compensation |
| Thermal and overcurrent protection | Auto-shutdown at 150°C junction temp and current limit ~600mA - prevents damage during fault conditions |
| Stable with minimal capacitance | Requires only 1μF output capacitor (ESR 0.1–5Ω) - eliminates need for large, costly electrolytics |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous ECG signal acquisition in handheld patient monitors powered by single Li-ion cell. IC Role / Device Role / Timing Role: Primary 2.5V analog supply for precision ADC and op-amp front-end. Use Value: ±0.5% output accuracy and 260nV/√Hz noise ensure <1 LSB error in 12-bit conversion; 50μA quiescent current extends runtime between charges. | Use Scenario: Long-term environmental monitoring using coin-cell-powered sensor nodes logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Always-on 2.5V regulator enabling RTC and microcontroller deep-sleep mode. Use Value: 0.05μA shutdown current minimizes leakage during 99.9% sleep time; 300mA headroom supports brief RF transmission bursts. |
| Linear Post-Regulator for SMPS | GSM Phone Baseband Power |
Use Scenario: Clean 2.5V rail generation downstream of noisy 3.3V buck converter in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Low-noise LDO filtering SMPS ripple before sensitive analog circuitry. Use Value: 60dB PSRR at ≤1kHz attenuates switching noise; 270mV dropout allows use with marginally regulated 2.77V input. | Use Scenario: Supplying 2.5V to baseband processor and audio codec in dual-mode GSM/PHS handsets. IC Role / Device Role / Timing Role: Main core voltage regulator with dynamic shutdown during idle frames. Use Value: CMOS-compatible SHDN input synchronizes with baseband power management logic; SOIC package supports standard reflow assembly. |
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 250mA max current and 1.8μA quiescent current - optimized for ultra-low-IQ, not high-current stability | Limited to ≤250mA loads; lacks Bypass pin for noise-sensitive rails | Select when standby current dominates design priority and full 300mA is not required |
| TPS76325DBVR | 2.5V output, 150mA max, 85μA IQ, 350mV dropout - higher IQ and lower current than TC1107-2.5VOA | Not suitable for 300mA continuous loads; no bypass input for noise reduction | Choose only if footprint compatibility with SOT-23-5 is mandatory and load current remains <150mA |
Compared with MCP1700-2502E/TO and TPS76325DBVR, the TC1107-2.5VOA uniquely delivers 300mA output with 50μA IQ and a dedicated bypass pin - making it the only option among the three capable of simultaneously meeting high-current, low-noise, and ultra-low-quiescent requirements in space-constrained portable systems.
Availability
TC1107-2.5VOA is available at Aetrix Electronics and suitable for battery-operated medical instruments, portable data loggers, and linear post-regulators requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TC1107-2.5VOA 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 company specializing in microcontrollers, analog devices, and power management ICs, with ISO/TS-16949 certified manufacturing.
The TC1107 product line was engineered as a CMOS-based upgrade to legacy bipolar LDOs - targeting high-accuracy, low-power, and low-noise regulation in portable and medical electronics where battery life and signal integrity are critical.
FAQ
What is the minimum input voltage required for TC1107-2.5VOA to regulate at full 300mA load?
The TC1107-2.5VOA requires VIN ≥ VOUT + dropout voltage. At 300mA, max dropout is 270mV, so minimum VIN = 2.5V + 0.27V = 2.77V. The datasheet also specifies absolute minimum VIN as 2.7V, making 2.77V the practical lower bound for full-load operation. Below this, regulation is not guaranteed.
Can TC1107-2.5VOA operate without the Bypass (Pin 4) capacitor?
Yes, TC1107-2.5VOA functions normally without the 470pF capacitor on the Bypass pin. That capacitor is optional and used solely to reduce output noise - particularly beneficial for ADC reference or audio circuits. Omitting it increases output noise to 260nV/√Hz (vs. lower values with bypass), but does not affect regulation accuracy, dropout, or stability.
Is TC1107-2.5VOA pin-compatible with other variants in the TC1107 family?
Yes, all TC1107 variants - including TC1107-2.5VOA, TC1107-3.3VOA, and TC1107-5.0VOA - share identical 8-pin SOIC pinouts and electrical behavior. Only the fixed output voltage differs. This allows drop-in replacement across voltage options without PCB changes, provided input voltage margins and load requirements remain compatible.
Does TC1107-2.5VOA require an input capacitor?
The TC1107-2.5VOA does not mandate an input capacitor for stability, but one is recommended: a 1μF capacitor from VIN to GND improves transient response and reduces noise when the input source has >10 inches of wiring or is a battery. Aluminum electrolytic or tantalum types are acceptable; solid tantalum is preferred for operation below -25°C.
What happens to the output voltage of TC1107-2.5VOA during thermal shutdown?
During thermal shutdown, the TC1107-2.5VOA disables its pass element, causing VOUT to fall to 0V. The device remains latched off until the junction temperature drops to approximately 140°C, at which point regulation resumes automatically. Output voltage does not sag or droop gradually - it transitions fully on/off, ensuring predictable behavior in thermally constrained designs.
TC1107-2.5VOA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TC1107-2.5VOA FAQ
1.How can I place an order for TC1107-2.5VOA through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1107-2.5VOA 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 TC1107-2.5VOA reliable?
The price and inventory of TC1107-2.5VOA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1107-2.5VOA is usually 5 days.
3.What payment methods are accepted for TC1107-2.5VOA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1107-2.5VOA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1107-2.5VOA?
TC1107-2.5VOA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1107-2.5VOA 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 TC1107-2.5VOA?
For technical support, including TC1107-2.5VOA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1107-2.5VOA requirements.
6.How does Aetrix verify that TC1107-2.5VOA is sourced from the original manufacturer or authorized distributors?
All TC1107-2.5VOA 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 TC1107-2.5VOA meets industry standards.
7.What is the process for return or replacement of TC1107-2.5VOA?
All TC1107-2.5VOA units undergo pre-shipment inspection (PSI). If there is an issue with TC1107-2.5VOA, 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 TC1107-2.5VOA part is unused and in its original packaging.
Return procedure for TC1107-2.5VOA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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