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Microchip Technology TC2186-2.7VCTTR
- Part No.:
- TC2186-2.7VCTTR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TC2186-2.7VCTTR.pdf
- Description:
- IC REG LINEAR 2.7V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TC2186-2.7VCTTR from Microchip Technology is a 150 mA, fixed-output CMOS low-dropout (LDO) voltage regulator in a 5-pin SOT-23A package, delivering ±0.4% output accuracy at 2.7 V with 140 mV typical dropout at full load and 55 µA quiescent current - optimized for battery-powered medical instruments and portable communication devices.
For engineers reviewing the TC2186-2.7VCTTR datasheet, TC2186-2.7VCTTR pinout, TC2186-2.7VCTTR application, or TC2186-2.7VCTTR equivalent, key selection criteria include verified 150 mA output capability, ERROR flag functionality for low-battery detection, shutdown current ≤0.5 µA, thermal shutdown at 160°C, and compatibility with 1 µF ceramic output capacitors.
Technical Context
The TC2186-2.7VCTTR implements a CMOS-based LDO architecture with integrated error amplifier, reference, and pass transistor - enabling stable regulation across 0–150 mA load without supply current increase. Its open-drain ERROR output asserts low when VOUT drops >5% below 2.7 V, supporting reset generation or battery monitoring.
It operates over VIN = 2.7–6.0 V and TA = –40°C to +125°C, features 20 ppm/°C output voltage temperature coefficient, and maintains regulation with 1 µF ceramic output capacitance (ESR 0.01–5 Ω). Shutdown control (SHDN) reduces supply current to 0.05 µA typical and disables both VOUT and ERROR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7 V ±0.4% (±10.8 mV) - ensures stable core logic or sensor biasing within tight tolerance bands. |
| Max Output Current | 150 mA - supports moderate-power microcontrollers, RF transceivers, or analog front-ends without external boost stages. |
| Dropout Voltage | 140 mV typical at 150 mA - enables operation down to VIN = 2.84 V while maintaining regulation, critical for single-cell Li-ion or alkaline systems. |
| Quiescent Current | 55 µA typical at full load - extends battery life significantly versus bipolar regulators (20–60× lower). |
| ERROR Threshold | 2.565 V (95% of 2.7 V) with 50 mV hysteresis - provides clean, noise-immune undervoltage flagging for system-level power management. |
| Shutdown Current | 0.05 µA typical - reduces standby drain to negligible levels in sleep-mode applications like pagers or wearables. |
| PSRR | 50 dB @ ≤100 kHz - suppresses ripple from noisy switchers or shared power rails feeding sensitive analog circuitry. |
Pinout & Package
TC2186-2.7VCTTR is housed in a 5-pin SOT-23A (EIAJ SC-74A) surface-mount package with 220°C/W junction-to-air thermal resistance on standard FR4 PCBs. Pin 1 is marked by a beveled corner or dot; device orientation follows EIAJ tape-and-reel standard (marking right-side up, feed direction as shown in DS21663D-page 15).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated input supply | Accepts 2.7–6.0 V input; requires ≥1 µF ceramic decoupling capacitor close to pin for stability and transient response. |
| GND (Pin 2) | Ground reference | Common return for input/output capacitors and load; must connect to low-impedance ground plane to minimize noise coupling. |
| SHDN (Pin 3) | Active-high enable control | Logic high (≥60% VIN) enables regulation; logic low (≤15% VIN) forces shutdown with <0.5 µA supply current and zero VOUT. |
| ERROR (Pin 4) | Open-drain out-of-regulation flag | Sinks current when VOUT falls below 2.565 V; requires external pull-up (e.g., to VOUT or VIN) for reset or battery-low signaling. |
| VOUT (Pin 5) | Regulated 2.7 V output | Delivers up to 150 mA; connects directly to load and 1 µF ceramic capacitor; trace length must be minimized for ESR-sensitive stability. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS LDO architecture | Eliminates load-dependent quiescent current rise - maintains 55 µA IIN across 0–150 mA load range for predictable battery modeling. |
| Integrated ERROR flag | Provides hardware-level undervoltage detection with 50 mV hysteresis - enables reliable processor reset or battery-alert without external comparators. |
| Thermal shutdown protection | Triggers at ~160°C die temperature and releases at ~150°C - prevents permanent damage during sustained overload or poor heatsinking. |
| Low-noise operation | 600 nV/√Hz output noise at 10 kHz - suitable for powering precision ADCs, op-amps, or RF synthesizers without added filtering. |
| Fast wake-up from shutdown | 60 µs typical VOUT rise time to 95% of 2.7 V - supports rapid system wake-up in duty-cycled IoT sensors or portable diagnostics. |
Applications
| Medical Instrumentation | Portable Communication Devices |
|---|---|
|
Use Scenario: Powering handheld glucose meters and pulse oximeters operating from single AA/AAA cells. IC Role / Device Role / Timing Role: Primary 2.7 V supply for MCU, display driver, and analog signal chain with precise voltage reference integrity. Use Value: ±0.4% output accuracy and 20 ppm/°C drift ensure consistent ADC conversion and sensor calibration across –20°C to +50°C ambient. |
Use Scenario: Supplying baseband processors and audio codecs in GSM/PHS pagers and feature phones. IC Role / Device Role / Timing Role: Low-noise, low-quiescent LDO delivering regulated 2.7 V during active transmit/receive bursts and deep-sleep modes. Use Value: 55 µA IQ extends standby time; 140 mV dropout allows operation down to 2.84 V VIN - maximizing usable battery capacity. |
| Industrial Portable Test Equipment | Battery-Operated Data Loggers |
|
Use Scenario: Providing stable 2.7 V rail for 16-bit SAR ADCs and isolated RS-485 transceivers in field multimeters. IC Role / Device Role / Timing Role: Precision voltage source with ERROR flag used to trigger low-battery alerts before measurement accuracy degrades. Use Value: 50 dB PSRR at 100 kHz rejects switching noise from onboard DC/DC converters; 1 µF ceramic compatibility simplifies layout. |
Use Scenario: Powering ultra-low-power microcontrollers (e.g., PIC16LF) and EEPROM memory in environmental monitoring nodes. IC Role / Device Role / Timing Role: Always-on regulator with SHDN controlled by MCU GPIO to gate power to sensors during sampling intervals. Use Value: 0.05 µA shutdown current minimizes annual self-discharge; fast 60 µs wake-up enables sub-second wake/sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2702E/TO | 300 mA output, 1.6 µA quiescent current, no ERROR pin, same SOT-23-5 package | Lacks hardware fault flag; better for ultra-low-IQ sleep-only use cases where reset signaling is handled externally | Select when lowest possible shutdown current is critical and ERROR functionality is unnecessary. |
| TPS76327QDBVRQ1 | 150 mA output, 80 µA IQ, integrated thermal/overcurrent protection, automotive-grade (-40°C to +125°C), same pinout | Designed for automotive AEC-Q100 qualification; higher IQ but includes enhanced reliability testing and qualification documentation | Select for automotive or industrial designs requiring certified qualification and broader supply-chain assurance. |
Compared with MCP1700-2702E/TO and TPS76327QDBVRQ1, TC2186-2.7VCTTR uniquely balances 150 mA capability, 55 µA operational IQ, and integrated ERROR flag in a cost-optimized industrial-grade package - making it optimal for battery-constrained portable instrumentation requiring both efficiency and fault visibility.
Availability
TC2186-2.7VCTTR is available at Aetrix Electronics and suitable for battery-operated medical instruments, portable communication devices, and industrial data loggers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TC2186-2.7VCTTR 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 is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management ICs, with ISO/TS-16949:2002 certification across wafer fabrication and design centers.
The TC2054/2055/2186 family was designed as CMOS upgrades to legacy bipolar LDOs - targeting extended battery life, precision regulation, and integrated system-monitoring features for portable and space-constrained applications.
FAQ
What is the maximum input voltage rating for TC2186-2.7VCTTR?
The absolute maximum input voltage for TC2186-2.7VCTTR is 6.5 V, but the recommended operating range is 2.7 V to 6.0 V. Exceeding 6.5 V risks permanent damage per Absolute Maximum Ratings in DS21663D. Within the operating range, the device maintains regulation down to VIN = VOUT + dropout (2.84 V typical at 150 mA), making TC2186-2.7VCTTR suitable for single-cell Li-ion or dual-alkaline systems.
Does TC2186-2.7VCTTR require an external pull-up resistor on the ERROR pin?
Yes, TC2186-2.7VCTTR features an open-drain ERROR output and requires an external pull-up resistor (typically 10–100 kΩ) to a valid voltage rail (VOUT, VIN, or another logic-compatible supply ≤ VIN + 0.3 V). Without pull-up, the ERROR signal cannot assert high-impedance or logic-high states, rendering the undervoltage flag nonfunctional. The ERROR pin sinks up to 18 mA when active, so TC2186-2.7VCTTR's internal structure supports direct interfacing with most microcontroller reset inputs.
Can TC2186-2.7VCTTR operate with a 1 µF ceramic output capacitor?
Yes, TC2186-2.7VCTTR is explicitly characterized and stabilized with a minimum 1 µF ceramic output capacitor (ESR 0.01–5 Ω), as confirmed in DS21663D-page 11 Section 4.2. This eliminates need for larger tantalum or electrolytic capacitors, reducing board area and cost. Using less than 1 µF or exceeding the ESR range may cause instability or excessive output ripple - so TC2186-2.7VCTTR's design enables compact, low-BOM-count power solutions.
What is the thermal shutdown behavior of TC2186-2.7VCTTR?
TC2186-2.7VCTTR incorporates thermal shutdown that activates at approximately 160°C die temperature and releases when the junction cools to ~150°C, as specified in DS21663D-page 4 and Section 5.1. During shutdown, regulation halts, VOUT drops to 0 V, and supply current falls to ≤0.5 µA. This protects against irreversible damage during sustained overload or inadequate PCB copper pour - and TC2186-2.7VCTTR resumes normal operation automatically once thermally safe, with no latch or external reset required.
How does the SHDN pin function in TC2186-2.7VCTTR?
The SHDN pin on TC2186-2.7VCTTR is an active-high enable input: logic high (≥60% VIN) enables regulation, while logic low (≤15% VIN) forces shutdown. In shutdown mode, TC2186-2.7VCTTR draws ≤0.5 µA, VOUT falls to 0 V, and ERROR becomes high-impedance. If unused, SHDN must be tied to VIN - floating is not permitted. This direct CMOS-compatible control allows seamless integration with microcontroller GPIOs or power sequencers in battery-powered systems using TC2186-2.7VCTTR.
TC2186-2.7VCTTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 2.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.21V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 50dB (100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TC2186-2.7VCTTR FAQ
1.How can I place an order for TC2186-2.7VCTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC2186-2.7VCTTR 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 TC2186-2.7VCTTR reliable?
The price and inventory of TC2186-2.7VCTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC2186-2.7VCTTR is usually 5 days.
3.What payment methods are accepted for TC2186-2.7VCTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC2186-2.7VCTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC2186-2.7VCTTR?
TC2186-2.7VCTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC2186-2.7VCTTR 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 TC2186-2.7VCTTR?
For technical support, including TC2186-2.7VCTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC2186-2.7VCTTR requirements.
6.How does Aetrix verify that TC2186-2.7VCTTR is sourced from the original manufacturer or authorized distributors?
All TC2186-2.7VCTTR 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 TC2186-2.7VCTTR meets industry standards.
7.What is the process for return or replacement of TC2186-2.7VCTTR?
All TC2186-2.7VCTTR units undergo pre-shipment inspection (PSI). If there is an issue with TC2186-2.7VCTTR, 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 TC2186-2.7VCTTR part is unused and in its original packaging.
Return procedure for TC2186-2.7VCTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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