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Microchip Technology TC2015-1.8VCTTR
- Part No.:
- TC2015-1.8VCTTR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TC2015-1.8VCTTR.pdf
- Description:
- IC REG LINEAR 1.8V 100MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,895
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Product details
Overview
TC2015-1.8VCTTR from Microchip Technology is a 100 mA, 1.8 V fixed-output CMOS low-dropout (LDO) regulator in a 5-pin SOT-23A package, featuring ±0.4% output voltage accuracy, 140 mV typical dropout at 150 mA, 80 µA max supply current, and integrated shutdown control with 60 µs wake-up response-designed for battery-powered medical instruments and portable computing systems.
For engineers reviewing the TC2015-1.8VCTTR datasheet, TC2015-1.8VCTTR pinout, TC2015-1.8VCTTR application, or TC2015-1.8VCTTR equivalent, key selection criteria include ultra-low quiescent current, reference bypass capability for noise-sensitive analog rails, thermal/overcurrent protection, and compatibility with 1 µF ceramic output capacitance across –40°C to +125°C.
Technical Context
The TC2015-1.8VCTTR implements a CMOS-based LDO architecture optimized for low-noise, high-accuracy regulation in space-constrained applications. Its internal reference bypass input accepts 470 pF–0.01 µF capacitors to reduce output noise to 200 nV/√Hz and improve PSRR to 55 dB below 1 kHz.
It delivers stable 1.8 V output with load regulation of ±0.33% from 0.1 mA to 100 mA, line regulation of 0.05%/V, and thermal regulation of 0.04 V/W-enabling use as a linear post-regulator for switching power supplies where ripple rejection and fast transient response are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8 V ±0.4% (typical), enabling precision biasing of 1.8 V logic and RF circuitry |
| Max Output Current | 100 mA - sufficient for microcontrollers, sensors, and low-power FPGAs |
| Dropout Voltage | 140 mV (typ.) @ 100 mA - supports operation down to VIN = 1.94 V |
| Supply Current | 55 µA (typ.), 80 µA (max) - extends battery life in always-on monitoring systems |
| Shutdown Current | 0.05 µA (typ.) - enables deep-sleep modes without external disconnect |
| PSRR | 55 dB @ ≤1 kHz - suppresses switching noise from upstream DC/DC converters |
| Operating Temp | –40°C to +125°C - qualified for automotive cabin and industrial edge environments |
Pinout & Package
Package: 5-pin SOT-23A (EIAJ SC-74A), 2.95 mm × 1.63 mm × 1.18 mm body, with exposed pad not present; thermal resistance θJA = 255°C/W on standard FR-4 PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Unregulated input supply | Accepts 2.7–6.0 V; requires ≥1 µF input capacitor for stability and transient immunity |
| 2 - GND | Ground reference terminal | Common return for input/output capacitors and bypass network; must be low-impedance |
| 3 - SHDN | Active-high shutdown control | VIH ≥60% VIN enables regulation; VIL ≤15% VIN disables output and reduces IIN to 0.5 µA |
| 4 - Bypass | Reference bypass input | Connects 470 pF–0.01 µF capacitor to GND to reduce output noise and improve PSRR |
| 5 - VOUT | Regulated 1.8 V output | Stable with 1 µF ceramic COUT (ESR 0.01–5 Ω); delivers 100 mA with <±0.33% load regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise operation | 200 nV/√Hz output noise with 470 pF bypass capacitor-critical for ADC reference and RF front-end supplies |
| Fast wake-up response | 60 µs typical time to reach 95% of 1.8 V after SHDN assertion-supports burst-mode power management |
| Thermal shutdown protection | Auto-shutdown at 160°C die temperature, with 10°C hysteresis-prevents damage during sustained overload |
| Low dropout at full load | 140 mV dropout at 100 mA enables use with single-cell Li-ion (3.0 V min) or two-cell alkaline (2.4 V min) |
| Pin-compatible upgrade path | Direct replacement for LP2980-1.8 in SOT-23A footprint-no PCB redesign required for legacy bipolar LDO upgrades |
Applications
| Battery-Powered Medical Sensors | Portable Computing Core Rails |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and low-power MCU. IC Role / Device Role / Timing Role: Primary 1.8 V supply for BLE SoC digital core and sensor interface logic. Use Value: 80 µA max quiescent current extends coin-cell lifetime beyond 12 months; 140 mV dropout sustains regulation as battery discharges to 1.94 V. |
Use Scenario: Sub-1W ARM Cortex-M4-based handheld diagnostic tool with OLED display. IC Role / Device Role / Timing Role: Post-regulator for 3.3 V buck converter output, delivering clean 1.8 V to MCU I/O and memory interface. Use Value: 55 dB PSRR at 1 kHz attenuates switching ripple from upstream DC/DC; bypass input reduces noise to preserve signal integrity in analog front-end. |
| Linear Post-Regulator for SMPS | GSM/PHS Phone Baseband Supply |
Use Scenario: Dual-rail power system using 5 V buck converter followed by TC2015-1.8VCTTR for noise-sensitive peripherals. IC Role / Device Role / Timing Role: Low-noise LDO stage isolating digital switching noise from precision analog subsystems. Use Value: Reference bypass input enables 200 nV/√Hz noise floor-meets SNR requirements for 12-bit SAR ADCs and audio codecs. |
Use Scenario: Legacy GSM handset requiring stable 1.8 V rail for baseband processor and SIM interface. IC Role / Device Role / Timing Role: Main 1.8 V supply with fast shutdown for power sequencing during sleep/wake cycles. Use Value: 60 µs wake-up time meets 3GPP TS 45.009 timing constraints for rapid channel access; –40°C to +125°C rating ensures outdoor reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1802E/TO | 300 mA output, 1.8 V, 2 µA quiescent current, SOT-23-5 package, no bypass pin | Lacks reference bypass input; lower IQ but higher dropout (600 mV @ 250 mA) | Prefer when ultra-low IQ dominates over noise performance and load current exceeds 100 mA |
| LP2980AIM5-1.8/NOPB | Bipolar LDO, 50 mA, 1.8 V, 120 µA IQ, same SOT-23-5 pinout, no bypass pin | Higher supply current, lower PSRR (40 dB), no thermal shutdown, limited temp range (–40°C to +125°C only for A grade) | Acceptable for cost-sensitive, non-noise-critical designs where pin compatibility is mandatory and 50 mA suffices |
Compared with MCP1700-1802E/TO and LP2980AIM5-1.8/NOPB, TC2015-1.8VCTTR uniquely balances 100 mA drive, 80 µA IQ, 140 mV dropout, and dedicated bypass input-making it optimal for noise-sensitive, battery-constrained systems needing >50 mA.
Availability
TC2015-1.8VCTTR is available at Aetrix Electronics and suitable for battery-operated medical instruments, portable computing subsystems, and GSM/PHS phone baseband supplies requiring stable component supply with guaranteed long-term continuity.
Supply support for TC2015-1.8VCTTR 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, headquartered in Chandler, Arizona, with global design, manufacturing, and sales operations.
The TC2015-1.8VCTTR belongs to Microchip's precision CMOS LDO family designed specifically for upgrading legacy bipolar regulators in space- and power-constrained applications-emphasizing low noise, high accuracy, and robust protection features.
FAQ
What is the maximum input voltage rating for TC2015-1.8VCTTR?
The absolute maximum input voltage for TC2015-1.8VCTTR is 7.0 V. Operation above this level risks permanent damage. The recommended operating input range is 2.7 V to 6.0 V, ensuring proper regulation while maintaining 140 mV dropout margin at full 100 mA load. Exceeding 6.0 V may degrade long-term reliability even if within absolute maximum limits.
Does TC2015-1.8VCTTR require an external bypass capacitor for basic operation?
No, TC2015-1.8VCTTR operates stably without an external bypass capacitor on the Bypass pin. However, connecting a 470 pF–0.01 µF ceramic capacitor from Bypass to GND reduces output noise to 200 nV/√Hz and improves PSRR-essential for analog/RF applications. Leaving Bypass unconnected degrades noise performance but does not affect regulation or stability.
Can TC2015-1.8VCTTR be used with ceramic output capacitors smaller than 1 µF?
No-TC2015-1.8VCTTR requires a minimum 1 µF ceramic or tantalum output capacitor (COUT) connected from VOUT to GND for stability across its full operating range. Using less capacitance risks oscillation or poor transient response. X5R/X7R dielectrics are recommended for stable ESR (0.01–5 Ω) over temperature.
What is the shutdown behavior of TC2015-1.8VCTTR when SHDN is pulled low?
When SHDN is driven below 15% of VIN, TC2015-1.8VCTTR enters shutdown mode: VOUT falls to 0 V, and supply current drops to 0.05 µA (typical) or 0.5 µA (max). Wake-up occurs within 60 µs after SHDN rises above 60% of VIN. No external discharge path is needed-the internal circuitry actively pulls VOUT to ground.
Is TC2015-1.8VCTTR pin-compatible with the LP2980-1.8 series?
Yes-TC2015-1.8VCTTR uses the identical 5-pin SOT-23A (SC-74A) footprint and pinout as LP2980-1.8 variants, enabling direct drop-in replacement. Unlike the bipolar LP2980, TC2015-1.8VCTTR adds a Bypass pin (Pin 4) and offers lower dropout, lower IQ, and thermal shutdown-enhancing performance without layout changes.
TC2015-1.8VCTTR 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.14V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (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:
- SOT-23-5
TC2015-1.8VCTTR FAQ
1.How can I place an order for TC2015-1.8VCTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC2015-1.8VCTTR 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 TC2015-1.8VCTTR reliable?
The price and inventory of TC2015-1.8VCTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC2015-1.8VCTTR is usually 5 days.
3.What payment methods are accepted for TC2015-1.8VCTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC2015-1.8VCTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC2015-1.8VCTTR?
TC2015-1.8VCTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC2015-1.8VCTTR 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 TC2015-1.8VCTTR?
For technical support, including TC2015-1.8VCTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC2015-1.8VCTTR requirements.
6.How does Aetrix verify that TC2015-1.8VCTTR is sourced from the original manufacturer or authorized distributors?
All TC2015-1.8VCTTR 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 TC2015-1.8VCTTR meets industry standards.
7.What is the process for return or replacement of TC2015-1.8VCTTR?
All TC2015-1.8VCTTR units undergo pre-shipment inspection (PSI). If there is an issue with TC2015-1.8VCTTR, 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 TC2015-1.8VCTTR part is unused and in its original packaging.
Return procedure for TC2015-1.8VCTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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