My Inquiry
My Account
Microchip Technology TC1173-3.0VOATR
- Part No.:
- TC1173-3.0VOATR
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TC1173-3.0VOATR.pdf
- Description:
- IC REG LINEAR 3V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,566
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC1173-3.0VOATR from Microchip Technology Inc. is a fixed-output CMOS low dropout (LDO) voltage regulator delivering 3.0V ±0.5% at up to 300mA, with ultra-low 50µA typical supply current and 240mV typical dropout at full load. It features an open-drain ERROR flag for out-of-regulation detection and shutdown control for 0.05µA quiescent current-ideal for battery-powered medical instruments and portable computing.
For engineers reviewing the TC1173-3.0VOATR datasheet, TC1173-3.0VOATR pinout, TC1173-3.0VOATR application, or TC1173-3.0VOATR equivalent, key selection criteria include its 3.0V precision output, MSOP-8 package footprint, ERROR threshold at 95% of VOUT (2.85V typ.), and compatibility with 1µF minimum output capacitance for stable linear post-regulation in space-constrained embedded systems.
Technical Context
The TC1173-3.0VOATR employs CMOS pass transistor architecture enabling constant 50µA supply current independent of load-unlike bipolar regulators-and maintains regulation from 0mA to 300mA. Its internal feed-forward compensation ensures fast transient response to step-load changes.
It integrates dual protection: thermal shutdown at 150°C and current limiting with 550–650mA short-circuit output capability. The ERROR output asserts low when VOUT drops ≥5% below nominal (i.e., ≤2.85V), with 50mV hysteresis referenced to VR, and operates as either low-battery detector or processor RESET signal with external RC timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±0.5% - precision regulation suitable for powering 3.0V logic rails without external trimming. |
| Max Output Current | 300mA - supports moderate-power peripherals like sensors or RF front-ends in portable devices. |
| Dropout Voltage | 240mV at 300mA - enables operation from 3.24V input (e.g., single Li-ion cell at end-of-discharge). |
| Supply Current | 50µA typical at full load - extends battery life significantly vs. bipolar LDOs (20–60× lower). |
| Shutdown Current | 0.05µA typical - reduces system standby power to nanoampere level during sleep modes. |
| ERROR Threshold | 2.85V (95% of 3.0V) with 50mV hysteresis - provides reliable low-battery warning before brownout. |
| Noise Performance | 260nV/√Hz at 1kHz - ultra-low noise enables clean power for analog circuits and ADC references. |
| Stability | Stable with 1µF ceramic output capacitor - eliminates need for large, costly tantalum or electrolytic caps. |
Pinout & Package
TC1173-3.0VOATR is packaged in an 8-pin MSOP (Mini Small Outline Package), measuring 3.10 × 4.80 mm with 0.50 mm pitch, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 8) | Unregulated input supply | Accepts 2.7–6.0V; must exceed VOUT + dropout (≥3.24V for 300mA @ 3.0V). |
| VOUT (Pin 1) | Regulated output | Delivers stable 3.0V ±0.5%; requires ≥1µF capacitor to GND for stability. |
| GND (Pin 2) | Ground reference | Primary return path; layout with low-impedance plane minimizes thermal resistance (θJA ≈ 200°C/W). |
| NC (Pins 3, 7) | No-connect | Not internally bonded; must remain unconnected per datasheet. |
| Bypass (Pin 4) | Reference bypass input | Connects 470pF to GND to reduce internal reference noise and cut output noise to 260nV/√Hz. |
| ERROR (Pin 5) | Open-drain fault flag | Asserts low when VOUT ≤2.85V; requires external pull-up for RESET or battery-warning logic. |
| SHDN (Pin 6) | Active-high enable | Logic high (>45% VIN) enables regulator; logic low (<15% VIN) forces 0.05µA shutdown mode. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 50µA at full load enables >1-year battery life in 10µA-average IoT sensor nodes. |
| Low-noise Bypass input | 470pF on Bypass pin reduces output noise by >50% versus standard configuration. |
| Fast transient response | Internal feed-forward compensation delivers <10µs recovery from 50–300mA load steps. |
| Integrated protection | Auto-recovering thermal shutdown (150°C trip) and current limit (550–650mA) prevent damage under fault. |
| Flexible ERROR function | Configurable as low-battery alert or processor RESET with user-defined RC timing (e.g., 200ms hold). |
Applications
| Portable Medical Devices | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Powering glucose meters and handheld ECG monitors operating from single-cell Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying analog front-end, MCU core, and display driver with tight voltage tolerance. Use Value: 0.5% output accuracy and 240mV dropout ensure continuous operation down to 3.24V input, extending usable battery capacity by 12–15%. | Use Scenario: Regulating power for portable oscilloscopes, multimeters, and environmental data loggers. IC Role / Device Role / Timing Role: Low-noise post-regulator after DC/DC converter, cleaning switching ripple for precision ADC and reference circuits. Use Value: 260nV/√Hz noise and 1µF-stable design eliminate need for additional filtering, reducing BOM count and board area. |
| Cellular/GSM Handsets | Linear Post-Regulators for SMPS |
Use Scenario: Supplying 3.0V rails to baseband processors and RF transceivers in legacy GSM/PHS phones. IC Role / Device Role / Timing Role: Shutdown-controlled LDO providing sequenced power to subsystems during sleep/wake cycles. Use Value: 0.05µA shutdown current and fast wake-up (<10µs) minimize leakage and latency in burst-communication protocols. | Use Scenario: Final-stage regulation after buck converter in industrial controllers and telecom modules. IC Role / Device Role / Timing Role: Precision, low-noise LDO improving PSRR and transient immunity of downstream analog circuitry. Use Value: 60dB PSRR at ≤1kHz suppresses switching noise from upstream SMPS, preventing measurement errors in sensitive analog paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | Same 3.0V output, but SOT-23-5 package; 2.5µA quiescent current (lower), 250mA max output (lower), no ERROR pin. | Lacks fault reporting; suited for ultra-low-power always-on sensors where ERROR is unnecessary. | Select MCP1700-3002E/TO only if ERROR functionality is omitted and footprint constraints favor SOT-23. |
| NCP1117ST30T3G | 3.0V fixed output, TO-220/TO-263 package; 6mA quiescent current (120× higher); 1A output; no shutdown or ERROR. | Higher thermal mass and power dissipation; intended for high-current, non-battery applications with heatsinking. | Choose NCP1117ST30T3G only for mains-powered systems requiring >300mA and accepting higher quiescent loss. |
Compared with MCP1700-3002E/TO, TC1173-3.0VOATR adds critical ERROR monitoring and 300mA drive in MSOP-8, while NCP1117ST30T3G trades precision and low IQ for raw current capacity-making TC1173-3.0VOATR the sole choice for battery-operated systems needing both reliability and efficiency.
Availability
TC1173-3.0VOATR is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and cellular handset designs requiring stable component supply with long-term manufacturability.
Supply support for TC1173-3.0VOATR 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 TC1173 family was designed specifically for ultra-low-power, high-accuracy linear regulation in battery-critical applications-emphasizing minimal quiescent current, fast transient response, and integrated fault signaling without external components.
FAQ
What is the maximum input voltage rating for TC1173-3.0VOATR?
The absolute maximum input voltage for TC1173-3.0VOATR is 6.5V, but the recommended operating range is 2.7V to 6.0V per Electrical Characteristics. Exceeding 6.0V may trigger overvoltage stress not covered by warranty, and operation above 6.5V risks permanent damage. Always maintain VIN ≥ VOUT + dropout (≥3.24V at 300mA) to ensure regulation.
Does TC1173-3.0VOATR require an external capacitor on the Bypass pin?
No, the Bypass pin on TC1173-3.0VOATR is optional: connecting a 470pF capacitor to ground reduces output noise to 260nV/√Hz, but leaving it unconnected still yields functional regulation. Larger values increase startup time; smaller or missing capacitors degrade noise performance but do not affect basic voltage regulation.
How does the ERROR output of TC1173-3.0VOATR behave during shutdown?
During shutdown (SHDN = low), the ERROR output of TC1173-3.0VOATR is disabled and floats-neither driven high nor low. It only becomes active (open-drain low) when SHDN is high and VOUT falls ≥5% below 3.0V (i.e., ≤2.85V). This prevents false assertions during power-down sequences.
Can TC1173-3.0VOATR be used with ceramic output capacitors?
Yes, TC1173-3.0VOATR is explicitly stable with 1µF ceramic output capacitors (ESR 0.1–5.0Ω), eliminating reliance on larger, less reliable tantalum or aluminum electrolytics. This simplifies layout, improves temperature performance (no freezing below –25°C), and reduces cost and footprint in compact designs.
What is the thermal shutdown behavior of TC1173-3.0VOATR?
TC1173-3.0VOATR initiates thermal shutdown at approximately 150°C junction temperature and remains off until die temperature cools to ~140°C. Recovery is automatic and does not require cycling SHDN. The 8-pin MSOP package has θJA ≈ 200°C/W; proper PCB copper pour and wide traces are essential to avoid repeated tripping under sustained 300mA loads.
TC1173-3.0VOATR 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):
- 3V
- 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
TC1173-3.0VOATR FAQ
1.How can I place an order for TC1173-3.0VOATR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1173-3.0VOATR 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 TC1173-3.0VOATR reliable?
The price and inventory of TC1173-3.0VOATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1173-3.0VOATR is usually 5 days.
3.What payment methods are accepted for TC1173-3.0VOATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1173-3.0VOATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1173-3.0VOATR?
TC1173-3.0VOATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1173-3.0VOATR 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 TC1173-3.0VOATR?
For technical support, including TC1173-3.0VOATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1173-3.0VOATR requirements.
6.How does Aetrix verify that TC1173-3.0VOATR is sourced from the original manufacturer or authorized distributors?
All TC1173-3.0VOATR 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 TC1173-3.0VOATR meets industry standards.
7.What is the process for return or replacement of TC1173-3.0VOATR?
All TC1173-3.0VOATR units undergo pre-shipment inspection (PSI). If there is an issue with TC1173-3.0VOATR, 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 TC1173-3.0VOATR part is unused and in its original packaging.
Return procedure for TC1173-3.0VOATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC1173-3.0VOATR Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
