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Microchip Technology TC1107-2.8VUA
- Part No.:
- TC1107-2.8VUA
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TC1107-2.8VUA.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,576
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Product details
Overview
TC1107-2.8VUA from Microchip Technology is a fixed-output, 2.8V CMOS low-dropout (LDO) regulator in an 8-pin MSOP package, delivering up to 300mA output current with ±0.5% output voltage accuracy, 240mV typical dropout at full load, and 50μA typical supply current. It serves as a precision post-regulator in battery-powered portable electronics requiring ultra-low noise and shutdown control.
For engineers reviewing the TC1107-2.8VUA datasheet, TC1107-2.8VUA pinout, TC1107-2.8VUA application, or TC1107-2.8VUA equivalent, key selection criteria include its 2.8V fixed output, MSOP-8 thermal performance (θJA ≈ 200°C/W), Bypass input for noise reduction, and guaranteed operation from –40°C to +125°C junction temperature.
Technical Context
The TC1107-2.8VUA employs a CMOS-based pass element enabling stable regulation across 0–300mA load with no increase in supply current versus load-unlike legacy bipolar LDOs. Its internal reference is bypassable via a dedicated pin, reducing output noise to 260nV/√Hz at 1kHz when a 470pF capacitor is applied.
It integrates over-temperature and over-current protection, shuts down to 0.05μA (typical) supply current with VOUT forced to 0V, and remains stable with only 1μF output capacitance. Dropout voltage is specified at 270mV max at 300mA, with line regulation of 0.05% (typ) and load regulation of 1.1% (typ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±0.5% (±14mV) at 25°C; ensures stable rail for 2.8V logic or analog circuitry without external feedback. |
| Max Output Current | 300mA continuous; supports moderate-power microcontrollers, sensors, or RF modules in compact portable designs. |
| Dropout Voltage | 270mV max at 300mA; enables operation with VIN as low as 3.07V, critical for single-cell Li-ion or alkaline battery systems. |
| Supply Current | 50μA typical at full load; 20–60× lower than bipolar LDOs, extending battery life in always-on or low-duty-cycle applications. |
| Shutdown Current | 0.05μA typical; reduces system standby power to nanoampere levels when SHDN is asserted low. |
| Output Noise | 260nV/√Hz at 1kHz (with 1μF COUT); minimized further to sub-100nV/√Hz range using optional 470pF on Bypass pin. |
| PSRR | 60dB at ≤1kHz; suppresses ripple from upstream switching regulators in hybrid SMPS/LDO power architectures. |
| Operating Temp | –40°C to +125°C junction range; qualified for industrial, medical, and automotive under-hood auxiliary rails. |
Pinout & Package
TC1107-2.8VUA is housed in an 8-pin MSOP package (3.0mm × 3.0mm × 1.1mm height), with exposed pad not electrically connected. Thermal resistance θJA ≈ 200°C/W; recommended PCB layout includes wide copper traces and ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Regulated output | Delivers stable 2.8V to load; requires ≥1μF ceramic or tantalum output capacitor to ground for stability. |
| 2 (GND) | Ground reference | Primary return path for load and internal circuitry; must be low-impedance connection to minimize noise coupling. |
| 3 (NC) | No connect | Internally unconnected; must remain floating-no external tie or routing required. |
| 4 (Bypass) | Reference bypass input | Accepts 470pF capacitor to ground to reduce internal reference noise, lowering output noise by >50%. |
| 5 (SHDN) | Active-high shutdown control | Logic high (>45% VIN) enables regulation; logic low (<15% VIN) disables output and cuts supply current to 0.05μA. |
| 6 (NC) | No connect | Internally unconnected; must remain floating-no external tie or routing required. |
| 7 (NC) | No connect | Internally unconnected; must remain floating-no external tie or routing required. |
| 8 (VIN) | Unregulated input | Accepts 2.7–6.0V input; minimum VIN = VOUT + dropout (≥3.07V at 300mA); requires local 1μF decoupling if battery-fed. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50μA typical at full 300mA load-enables multi-year battery life in IoT sensors and medical wearables. |
| Bypass-enabled ultra-low noise | Dedicated Bypass pin accepts 470pF cap to cut output noise to <100nV/√Hz, supporting sensitive ADCs and RF receivers. |
| Fast transient response | Maintains regulation during rapid load steps (e.g., MCU wake-up bursts) without external compensation components. |
| Thermal & current protection | Auto-shutdown at >150°C junction temp and current limiting at ~600mA prevent damage during fault conditions. |
| Minimal external components | Stable with only 1μF output capacitor; eliminates need for ESR-tuned ceramics or complex compensation networks. |
| Wide input voltage range | Operates from 2.7V to 6.0V-compatible with single Li-ion (2.7–4.2V), dual alkaline (3.0–3.6V), or 5V SMPS rails. |
Applications
| Portable Medical Sensors | GSM/PHS Handset Power Rails |
|---|---|
Use Scenario: Continuous glucose monitor with low-power MCU and analog front-end operating from coin cell. IC Role / Device Role / Timing Role: Primary 2.8V LDO supplying sensor bias, ADC reference, and MCU I/O rail. Use Value: 50μA quiescent current extends 3V CR2032 battery life beyond 2 years; 260nV/√Hz noise ensures <16-bit ADC accuracy. |
Use Scenario: GSM phone baseband subsystem requiring clean 2.8V supply during RF transmit bursts. IC Role / Device Role / Timing Role: Post-regulator cleaning noisy 3.3V SMPS output before feeding transceiver ICs and PLLs. Use Value: 60dB PSRR at 1kHz attenuates SMPS switching noise; fast load transient response prevents voltage droop during TX peaks. |
| Linear Post-Regulator for SMPS | Industrial Instrumentation Front-End |
Use Scenario: Industrial PLC module using 5V buck converter followed by precision 2.8V rail for analog signal conditioning. IC Role / Device Role / Timing Role: Low-noise, low-dropout final-stage regulator isolating sensitive analog circuits from digital switching noise. Use Value: 240mV dropout allows operation with minimal headroom; Bypass pin reduces noise floor to enable 24-bit sigma-delta ADC performance. |
Use Scenario: Portable multimeter with real-time clock (RTC), EEPROM backup, and precision op-amps. IC Role / Device Role / Timing Role: Stable 2.8V supply maintaining RTC accuracy and memory retention during main power interruptions. Use Value: Output remains regulated from 0–300mA with zero load-dependence-critical for battery-backed RTC and SRAM retention. |
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, SOT-23-5 package, 250mA max, 1.8μA quiescent current-but no Bypass pin or shutdown. | Lacks SHDN and Bypass; unsuitable where ultra-low noise or controlled power-down is required. | Select MCP1700 only for space-constrained, always-on, ultra-low-IQ applications without noise or shutdown needs. |
| TPS76328DBVR | 2.8V, 150mA, 80μA IQ, SOT-23-5, integrated thermal shutdown-but no Bypass pin and higher dropout (350mV @ 150mA). | Lower current rating and no noise-reduction capability limit use in high-precision or high-load scenarios. | Choose TPS76328 only if footprint compatibility with SOT-23 is mandatory and 150mA/350mV dropout suffices. |
Compared with MCP1700-2802E/TO and TPS76328DBVR, TC1107-2.8VUA uniquely combines 300mA drive, 240mV dropout, 50μA IQ, active shutdown, and Bypass-enabled noise reduction-all in MSOP-8-making it optimal for noise-sensitive, battery-critical, and thermally constrained designs.
Availability
TC1107-2.8VUA is available at Aetrix Electronics and suitable for battery-operated systems, portable medical instruments, and GSM/PHS handset power rails requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for TC1107-2.8VUA 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 devices, and power management ICs, with ISO/TS-16949 certified wafer fabrication and design facilities.
The TC1107 series was designed as a CMOS-based upgrade to legacy bipolar LDOs-targeting portable, battery-powered, and industrial applications demanding ultra-low quiescent current, high accuracy, and robust protection features.
FAQ
What is the maximum input voltage for TC1107-2.8VUA?
The absolute maximum input voltage for TC1107-2.8VUA is 6.0V. Operation above this risks permanent damage. The recommended operating range is 2.7V to 6.0V, with minimum input determined by dropout: VIN ≥ 2.8V + dropout voltage (e.g., ≥3.07V at 300mA load). Exceeding 6.0V violates Absolute Maximum Ratings per DS21356C.
Does TC1107-2.8VUA require an external capacitor on the Bypass pin?
No-TC1107-2.8VUA operates fully functional without any capacitor on the Bypass pin. A 470pF capacitor is optional and used only when ultra-low output noise (<100nV/√Hz) is required. Leaving Bypass unconnected results in 260nV/√Hz typical noise at 1kHz, which suffices for most digital and moderate-precision analog applications.
Can TC1107-2.8VUA be used with ceramic output capacitors?
Yes-TC1107-2.8VUA 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 low-profile, high-reliability designs. Avoid ultra-low-ESR ceramics (<0.1Ω) unless verified per Microchip's application notes.
What happens to the output voltage of TC1107-2.8VUA during shutdown?
When the SHDN pin is driven low (<15% VIN), TC1107-2.8VUA enters shutdown mode: output voltage falls to 0V, and supply current drops to 0.05μA (typical). This ensures complete isolation of the downstream load and eliminates standby power loss-critical for battery longevity in sleep-mode systems.
Is TC1107-2.8VUA compatible with lead-free reflow soldering processes?
Yes-TC1107-2.8VUA in MSOP-8 packaging is rated for standard lead-free reflow profiles, including JEDEC J-STD-020-compliant peak temperatures up to 260°C. The device uses matte tin (Sn) lead finish and meets RoHS Directive 2011/65/EU requirements. Refer to Microchip Packaging Specification for detailed thermal profile guidance.
TC1107-2.8VUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.8V
- 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-MSOP
TC1107-2.8VUA FAQ
1.How can I place an order for TC1107-2.8VUA through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1107-2.8VUA 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 TC1107-2.8VUA reliable?
The price and inventory of TC1107-2.8VUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1107-2.8VUA is usually 5 days.
3.What payment methods are accepted for TC1107-2.8VUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1107-2.8VUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1107-2.8VUA?
TC1107-2.8VUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1107-2.8VUA 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 TC1107-2.8VUA?
For technical support, including TC1107-2.8VUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1107-2.8VUA requirements.
6.How does Aetrix verify that TC1107-2.8VUA is sourced from the original manufacturer or authorized distributors?
All TC1107-2.8VUA 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 TC1107-2.8VUA meets industry standards.
7.What is the process for return or replacement of TC1107-2.8VUA?
All TC1107-2.8VUA units undergo pre-shipment inspection (PSI). If there is an issue with TC1107-2.8VUA, 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 TC1107-2.8VUA part is unused and in its original packaging.
Return procedure for TC1107-2.8VUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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