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Microchip Technology TC1017-2.85VLTTR
- Part No.:
- TC1017-2.85VLTTR
- Manufacturer:
- Microchip Technology
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TC1017-2.85VLTTR.pdf
- Description:
- IC REG LINEAR 2.85V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,406
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Product details
Overview
TC1017-2.85VLTTR from Microchip Technology is a fixed-output, 2.85 V CMOS low-dropout (LDO) linear voltage regulator in SC-70 package, delivering up to 150 mA output current with 285 mV typical dropout at full load, ±0.5% output voltage accuracy, and 53 µA typical quiescent current - optimized for battery-powered medical instruments and portable computing.
For engineers reviewing the TC1017-2.85VLTTR datasheet, TC1017-2.85VLTTR pinout, TC1017-2.85VLTTR application, or TC1017-2.85VLTTR equivalent, key selection criteria include shutdown current (0.05 µA typ), wake-up time (10 µs typ), ceramic capacitor compatibility (1 µF min), thermal shutdown threshold (160°C), and SC-70 footprint constraints.
Technical Context
The TC1017-2.85VLTTR uses a P-channel MOSFET pass element with internal bandgap reference and error amplifier feedback, enabling stable regulation across 2.7–6.0 V input and 0–150 mA load without external resistors. Its body diode (cathode at VIN, anode at VOUT) supports reverse-voltage protection in battery systems.
It integrates overcurrent limiting (120 mA typ during short-circuit), thermal shutdown (160°C trip, 10°C hysteresis), and fast transient response - achieving 32 µs typical settling time from shutdown with 1 µF ceramic output capacitance and 5.0 V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±0.5% (typ), ensuring precision biasing for 2.8 V–3.0 V logic and analog circuitry. |
| Max Output Current | 150 mA continuous, supporting power rails for microcontrollers, sensors, and RF front-ends in compact portable devices. |
| Dropout Voltage | 285 mV (typ) at 150 mA, enabling operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V min) sources. |
| Quiescent Current | 53 µA (typ) active, extending battery life in always-on monitoring applications such as wearable medical sensors. |
| Shutdown Current | 0.05 µA (typ), reducing standby drain to negligible levels in pagers and handheld diagnostic tools. |
| Wake-Up Time | 10 µs (typ) from SHDN assertion, meeting real-time responsiveness requirements in burst-mode wireless transceivers. |
| Capacitor Requirement | Stable with 1 µF ceramic output capacitor (ESR 0–2 Ω), eliminating need for costly tantalum or large electrolytics. |
Pinout & Package
TC1017-2.85VLTTR is supplied in a 5-pin SC-70 package (JEDEC MO-203AA), measuring 2.0 mm × 1.25 mm × 0.9 mm, with exposed pad not electrically connected. Thermal resistance θJA = 450°C/W under JEDEC J51-7 layout conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SHDN | Active-high shutdown control: VIH ≥ 45% VIN enables regulator; VIL ≤ 15% VIN disables output and reduces IIN to 0.05 µA. |
| 2 | NC | No-connect terminal - must be left floating; no internal connection or function. |
| 3 | GND | Ground reference for all internal circuitry; requires low-impedance connection to PCB ground plane for thermal and noise performance. |
| 4 | VOUT | Regulated 2.85 V output; bypassed with ≥1 µF ceramic capacitor placed adjacent to pin for stability and transient suppression. |
| 5 | VIN | Unregulated input (2.7–6.0 V); requires local 0.1–1 µF ceramic decoupling capacitor to suppress source impedance-induced instability. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS architecture | Reduces quiescent current by ~60× vs. bipolar LDOs, directly extending runtime in coin-cell or Li-ion–powered devices. |
| SC-70 footprint | 50% smaller area than SOT-23, enabling high-density layouts in space-constrained handheld medical and telecom equipment. |
| 1 µF ceramic stability | Eliminates ESR sensitivity and simplifies BOM by removing need for specialized low-ESR capacitors or compensation networks. |
| Thermal shutdown + hysteresis | 160°C trip / 150°C recovery prevents latch-up during sustained overload, protecting both IC and PCB traces. |
| Fast wake-up & settling | 10 µs wake-up and 32 µs total settling enable microsecond-scale power cycling in duty-cycled sensor nodes. |
Applications
| Portable Medical Sensors | Battery-Powered Diagnostic Tools |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and electrochemical sensor front-end. IC Role / Device Role / Timing Role: Primary 2.85 V supply for ultra-low-power MCU, ADC, and RF transceiver - regulated from single 3.0 V Li-ion cell. Use Value: 53 µA quiescent current minimizes background drain; 1 µF ceramic compatibility reduces board area by >30% vs. legacy LDOs. |
Use Scenario: Handheld ECG device operating 8 hours per charge on dual AA alkaline cells. IC Role / Device Role / Timing Role: Stable 2.85 V rail for analog front-end amplifiers and 12-bit SAR ADC, rejecting battery voltage sag during pulse acquisition. Use Value: 285 mV dropout ensures regulation down to 3.135 V input, preserving full runtime as cells discharge from 3.2 V to 2.4 V. |
| Ultra-Compact Pagers | GSM/PHS Handsets |
|
Use Scenario: Two-way pager with vibration motor, OLED display, and narrowband RF receiver. IC Role / Device Role / Timing Role: Always-on 2.85 V supply for real-time clock, memory retention, and wake-up controller - enabled only during alert events. Use Value: 0.05 µA shutdown current extends shelf life beyond 5 years; 10 µs wake-up enables sub-20 ms alert latency. |
Use Scenario: Legacy GSM handset baseband subsystem requiring clean 2.85 V for audio codec and SIM interface. IC Role / Device Role / Timing Role: Secondary LDO supplying noise-sensitive analog blocks, isolated from noisy digital supply domains. Use Value: 58 dB PSRR at 1 kHz suppresses switching noise from PMU DC-DC converters; ±0.5% accuracy maintains ADC reference integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TT | Same SC-70 package, 2.8 V output (not 2.85 V), 250 mV dropout at 250 mA, 1.8 µA shutdown current. | Lower output voltage limits use in 2.8 V logic; higher shutdown current increases standby drain in long-life battery apps. | Select when exact 2.85 V is non-critical and lowest possible shutdown current is prioritized over output accuracy. |
| TPS780285DRVR | 2.85 V output, 200 mV dropout at 150 mA, 500 nA shutdown current, but requires 2.2 µF minimum output capacitance. | Superior shutdown current and lower dropout, but larger capacitor requirement increases cost and board area. | Select when ultra-low shutdown current justifies added capacitor size and cost - e.g., multi-year IoT sensor deployments. |
Compared with MCP1700-2802E/TT and TPS780285DRVR, TC1017-2.85VLTTR offers the optimal balance of precise 2.85 V output, minimal 1 µF ceramic support, and industry-standard 0.05 µA shutdown - making it ideal for medical and telecom designs where voltage tolerance and component count are critical.
Availability
TC1017-2.85VLTTR is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered diagnostic tools, and ultra-compact pagers requiring stable component supply with guaranteed long-term sourcing.
Supply support for TC1017-2.85VLTTR 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 leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The TC1017 product line delivers ultra-low-quiescent, space-optimized CMOS LDOs specifically engineered for battery longevity and miniaturization in portable electronics - emphasizing precision, simplicity, and robustness over feature complexity.
FAQ
What is the maximum input voltage rating for TC1017-2.85VLTTR?
The absolute maximum input voltage for TC1017-2.85VLTTR is 6.0 V. Operation above this level risks permanent damage. The recommended operating range is 2.7 V to 6.0 V, with minimum input constrained by both dropout and output accuracy requirements - specifically VIN ≥ (2.85 V × 1.025) + VDROPOUT.
Does TC1017-2.85VLTTR require an input capacitor?
Yes, TC1017-2.85VLTTR requires a minimum 0.1 µF ceramic input capacitor placed close to the VIN pin. This stabilizes operation under high-source-impedance conditions - such as those found in battery-powered systems with long PCB traces - preventing oscillation and improving noise rejection.
Can TC1017-2.85VLTTR be used with tantalum output capacitors?
Yes, TC1017-2.85VLTTR supports tantalum output capacitors, provided their ESR remains between 0 Ω and 2 Ω. However, ceramic X7R/X5R types are preferred due to superior low-temperature performance (down to –40°C), smaller size, and absence of aging effects that affect tantalum reliability.
What is the thermal shutdown behavior of TC1017-2.85VLTTR?
TC1017-2.85VLTTR initiates thermal shutdown at approximately 160°C junction temperature and resumes operation once the die cools to ~150°C. This hysteresis prevents rapid cycling. The absolute maximum steady-state junction temperature is +125°C; sustained operation near 160°C may cause permanent damage.
Is TC1017-2.85VLTTR pin-compatible with bipolar LDOs?
Yes, TC1017-2.85VLTTR is explicitly designed as a pin-compatible upgrade for legacy bipolar LDOs in SC-70 and SOT-23 footprints. Its SHDN, GND, VOUT, and VIN pin assignments match common 5-pin regulators - enabling drop-in replacement without PCB redesign, while delivering 60× lower quiescent current.
TC1017-2.85VLTTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 58dB (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:
- SC-70-5
TC1017-2.85VLTTR FAQ
1.How can I place an order for TC1017-2.85VLTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1017-2.85VLTTR 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 TC1017-2.85VLTTR reliable?
The price and inventory of TC1017-2.85VLTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1017-2.85VLTTR is usually 5 days.
3.What payment methods are accepted for TC1017-2.85VLTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1017-2.85VLTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1017-2.85VLTTR?
TC1017-2.85VLTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1017-2.85VLTTR 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 TC1017-2.85VLTTR?
For technical support, including TC1017-2.85VLTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1017-2.85VLTTR requirements.
6.How does Aetrix verify that TC1017-2.85VLTTR is sourced from the original manufacturer or authorized distributors?
All TC1017-2.85VLTTR 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 TC1017-2.85VLTTR meets industry standards.
7.What is the process for return or replacement of TC1017-2.85VLTTR?
All TC1017-2.85VLTTR units undergo pre-shipment inspection (PSI). If there is an issue with TC1017-2.85VLTTR, 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 TC1017-2.85VLTTR part is unused and in its original packaging.
Return procedure for TC1017-2.85VLTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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