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Microchip Technology TC1107-2.8VOATR
- Part No.:
- TC1107-2.8VOATR
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TC1107-2.8VOATR.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,132
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Product details
Overview
TC1107-2.8VOATR from Microchip Technology is a fixed-output, 2.8V CMOS low-dropout (LDO) linear regulator with 300mA output current, ±0.5% output voltage accuracy, and ultra-low 50μA typical supply current. It features shutdown control, bypass input for noise reduction, and integrated over-temperature and over-current protection - designed for battery-powered medical instruments and portable communications devices.
For engineers reviewing the TC1107-2.8VOATR datasheet, TC1107-2.8VOATR pinout, TC1107-2.8VOATR application, or TC1107-2.8VOATR equivalent, key selection criteria include dropout voltage at full load (270mV max), thermal shutdown threshold (150°C), and compatibility with 1μF minimum output capacitance in space-constrained MSOP-8 layouts.
Technical Context
The TC1107-2.8VOATR 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, lowering output noise to 260nV/√Hz at 1kHz.
Shutdown functionality reduces supply current to 0.05μA (typical) while forcing VOUT to zero; SHDN input thresholds are defined as VIH ≥ 45% VIN and VIL ≤ 15% VIN, enabling direct interface with CMOS logic or microcontroller I/O pins without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±0.5% (±14mV) at 25°C - ensures stable power for 2.8V logic rails and analog sensors. |
| Max Output Current | 300mA - supports moderate-power peripherals like RF front-ends or display drivers in portable systems. |
| Dropout Voltage | 270mV max at 300mA - enables operation from 3.07V input (e.g., single Li-ion cell at end-of-discharge). |
| Supply Current | 50μA typical at full load - extends battery life >20× vs. comparable bipolar regulators. |
| PSRR | 60dB at ≤1kHz - suppresses ripple from upstream switching regulators in hybrid SMPS/LDO architectures. |
| Output Noise | 260nV/√Hz at 1kHz - meets low-noise requirements for precision ADCs and RF biasing circuits. |
| Thermal Shutdown | Triggers at 150°C junction temperature - protects device during sustained overload or poor PCB thermal design. |
Pinout & Package
TC1107-2.8VOATR is packaged in an 8-pin MSOP (Mini Small Outline Package) with 0.65mm pitch, 3.0mm × 3.0mm body size, and exposed pad not electrically connected. Thermal resistance θJA is 200°C/W, requiring careful PCB copper area allocation for >100mA continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 2.8V output - connects directly to load; requires ≥1μF ceramic capacitor to GND for stability. |
| 2 | GND | Power ground reference - must tie to low-impedance system ground plane to minimize noise coupling. |
| 3 | NC | No connect - left unconnected; no internal connection or function. |
| 4 | Bypass | Reference bypass node - adding 470pF to GND reduces output noise by filtering internal bandgap reference. |
| 5 | SHDN | Active-high shutdown control - logic high (≥45% VIN) enables regulator; logic low (≤15% VIN) disables it. |
| 6 | NC | No connect - left unconnected; no internal connection or function. |
| 7 | NC | No connect - left unconnected; no internal connection or function. |
| 8 | VIN | Unregulated input - accepts 2.7V to 6.0V; requires local 1μF decoupling if sourced from battery or long traces. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50μA typical at full load - enables multi-year battery life in always-on sensor nodes. |
| Low-noise operation with bypass | 260nV/√Hz output noise reduced further via external 470pF on Bypass pin - critical for RF and precision analog stages. |
| Fast transient response | Maintains regulation during rapid load steps (e.g., GSM transmit bursts) without external compensation. |
| Integrated protection | Auto-recovering over-temperature shutdown (150°C trip) and current-limiting (550–650mA short-circuit current) - eliminates need for external fault management circuitry. |
| Wide input voltage range | 2.7V to 6.0V operation - supports single-cell Li-ion (2.7–4.2V), dual-cell alkaline (3.0–3.6V), and post-regulation from 5V SMPS rails. |
Applications
| Portable Medical Sensors | Cellular/GSM Handsets |
|---|---|
Use Scenario: Powering low-power ECG front-end amplifiers and ADCs in wearable patch monitors. IC Role / Device Role / Timing Role: Primary 2.8V LDO delivering clean, stable bias to analog signal chain components. Use Value: ±0.5% output accuracy and 260nV/√Hz noise ensure <1 LSB error in 12-bit biomedical ADC conversions. |
Use Scenario: Supplying 2.8V to GSM transceiver ICs during high-current TX bursts. IC Role / Device Role / Timing Role: Local post-regulator smoothing ripple from main 3.3V SMPS and managing dynamic load transients. Use Value: 300mA capability and fast load-step response prevent brownout during 2A peak TX current draw from shared rail. |
| Battery-Backed RTC Modules | Industrial Handheld Terminals |
Use Scenario: Providing backup power to real-time clock (RTC) and SRAM during main power loss. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining 2.8V from coin cell (CR2032) during extended backup mode. Use Value: 50μA supply current extends CR2032 lifetime beyond 10 years at room temperature. |
Use Scenario: Regulating 2.8V for OLED display driver and touch controller in ruggedized field terminals. IC Role / Device Role / Timing Role: Main system LDO supporting mixed-signal loads with shutdown control for sleep/wake cycles. Use Value: SHDN input enables <0.1μA system standby current when display is off, meeting IP67 power budget targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | Same 2.8V output, but 250mA max current and 1.6μA quiescent current - lower IOUT, much lower IQ. | Optimized for ultra-low-power always-on monitoring; unsuitable for 300mA burst loads. | Select MCP1700-2802E/TO only when load never exceeds 250mA and sub-μA shutdown is required. |
| NCP1117ST28T3G | 2.8V output, 1A rating, but 6mA quiescent current and 1.2V dropout - higher IQ, much higher dropout. | Designed for higher-input-voltage industrial supplies; incompatible with single-cell battery inputs. | Choose NCP1117ST28T3G only when input voltage ≥4.0V and thermal margin allows 6mA static draw. |
Compared with MCP1700-2802E/TO and NCP1117ST28T3G, TC1107-2.8VOATR uniquely balances 300mA drive, 50μA IQ, and 270mV dropout - making it the only viable option for 2.8V battery-powered systems needing both moderate current and multi-year runtime.
Availability
TC1107-2.8VOATR is available at Aetrix Electronics and suitable for portable medical instruments, cellular handset power management, and industrial handheld terminals requiring stable component supply with consistent parametric performance across temperature.
Supply support for TC1107-2.8VOATR 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 facilities.
The TC1107 product line delivers high-accuracy, low-quiescent CMOS LDOs targeting battery-operated and noise-sensitive applications - emphasizing efficiency, stability, and integration of protection features without external components.
FAQ
What is the maximum input voltage for TC1107-2.8VOATR?
The absolute maximum input voltage for TC1107-2.8VOATR is 6.5V, but the recommended operating range is 2.7V to 6.0V per the datasheet. Exceeding 6.0V risks violating the specified electrical characteristics and may trigger overvoltage stress conditions. Always maintain VIN ≤ 6.0V in normal operation to ensure reliability and parameter compliance.
Does TC1107-2.8VOATR require an external capacitor on the Bypass pin?
No, TC1107-2.8VOATR does not require an external capacitor on the Bypass pin - it functions correctly with the pin left unconnected. However, adding a 470pF capacitor from Bypass to GND reduces output noise to 260nV/√Hz, which is beneficial in precision analog or RF applications. Larger values increase startup time and are not recommended unless validated.
Can TC1107-2.8VOATR be used with ceramic output capacitors?
Yes, TC1107-2.8VOATR is stable with ceramic output capacitors ≥1μF, provided their effective series resistance (ESR) is between 0.1Ω and 5.0Ω. Standard X5R or X7R 1μF/6.3V ceramics meet this requirement and are preferred for small size and low ESL. Avoid ultra-low-ESR types (<0.1Ω) unless verified with transient testing.
What happens to TC1107-2.8VOATR output during shutdown?
When the SHDN pin is pulled low (≤15% VIN), TC1107-2.8VOATR enters shutdown mode: output voltage falls to 0V, and supply current drops to 0.05μA (typical). The device remains in this state until SHDN rises above 45% VIN. No external discharge path is needed - VOUT is actively discharged internally.
Is TC1107-2.8VOATR compatible with lead-free reflow soldering?
Yes, TC1107-2.8VOATR in MSOP-8 package (suffix "T") is rated for standard lead-free reflow profiles per JEDEC J-STD-020. Peak temperature tolerance is 260°C for 10 seconds, matching common Pb-free assembly processes. The device carries RoHS-compliant markings and has been qualified for MSL Level 1 handling.
TC1107-2.8VOATR 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):
- 2.8V
- 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
TC1107-2.8VOATR FAQ
1.How can I place an order for TC1107-2.8VOATR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1107-2.8VOATR 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 TC1107-2.8VOATR reliable?
The price and inventory of TC1107-2.8VOATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1107-2.8VOATR is usually 5 days.
3.What payment methods are accepted for TC1107-2.8VOATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1107-2.8VOATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1107-2.8VOATR?
TC1107-2.8VOATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1107-2.8VOATR 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 TC1107-2.8VOATR?
For technical support, including TC1107-2.8VOATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1107-2.8VOATR requirements.
6.How does Aetrix verify that TC1107-2.8VOATR is sourced from the original manufacturer or authorized distributors?
All TC1107-2.8VOATR 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 TC1107-2.8VOATR meets industry standards.
7.What is the process for return or replacement of TC1107-2.8VOATR?
All TC1107-2.8VOATR units undergo pre-shipment inspection (PSI). If there is an issue with TC1107-2.8VOATR, 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 TC1107-2.8VOATR part is unused and in its original packaging.
Return procedure for TC1107-2.8VOATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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