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Texas Instruments LP2980IM5X-3.0/NOPB
- Part No.:
- LP2980IM5X-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP2980IM5X-3.0/NOPB.pdf
- Description:
- IC REG LINEAR 3V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,575
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Product details
Overview
LP2980IM5X-3.0/NOPB from Texas Instruments is a fixed 3.0V, micropower, ultra-low dropout (LDO) linear regulator in SOT-23-5 package, delivering up to 50mA output current with ±0.5% initial accuracy and ±1% load/temperature variation. It operates from 2.5V to 16V input, features 69μA quiescent current at zero load, and supports stable regulation with 2.2µF ceramic output capacitors - ideal for powering low-voltage microcontrollers in space-constrained industrial and metering systems.
For engineers reviewing the LP2980IM5X-3.0/NOPB datasheet, LP2980IM5X-3.0/NOPB pinout, LP2980IM5X-3.0/NOPB application, or LP2980IM5X-3.0/NOPB equivalent, key selection considerations include dropout voltage at 50mA (≤145mV), PSRR of 75dB @ 1kHz / 45dB @ 1MHz, thermal shutdown at 170°C, enable functionality via ON/OFF pin, and compatibility with wide-input, low-noise power rail requirements in SSDs, electricity meters, and building automation controllers.
Technical Context
The LP2980IM5X-3.0/NOPB employs a CMOS pass transistor architecture enabling ultra-low dropout (as low as 2.75mV at 0mA) and high PSRR through optimized internal compensation. Its integrated UVLO (2.2V rising threshold, 1.9V falling) and active pulldown circuit ensure controlled startup/shutdown behavior and rapid output discharge when disabled.
Functional safety features include brick-wall current limiting (150mA short-circuit), thermal shutdown with 20°C hysteresis (170°C trip, 150°C reset), and overtemperature protection. The device maintains ±1% output accuracy across –40°C to +125°C junction temperature and supports operation with minimal external components: only 1µF input and 2.2µF output ceramic capacitors required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±0.5% (A-grade new chip); ensures precise biasing for 3.3V-tolerant MCUs and sensors. |
| Input Voltage Range | 2.5V to 16V; accommodates wide-input sources including unregulated DC rails and battery-backed supplies. |
| Max Output Current | 50mA continuous; sufficient for low-power logic, real-time clocks, and analog front-ends in metering and appliance control. |
| Quiescent Current | 69μA at 0mA load; enables multi-year battery life in always-on residential breaker monitoring circuits. |
| Dropout Voltage | 120–145mV at 50mA (–40°C to +125°C); allows regulation from 3.12V input even under worst-case thermal conditions. |
| PSRR | 75dB @ 1kHz, 45dB @ 1MHz; effectively suppresses switching noise from upstream DC/DC converters in mixed-signal systems. |
| Operating Temp | –40°C to +125°C junction; qualified for industrial environments including electricity meter enclosures and HVAC control panels. |
Pinout & Package
LP2980IM5X-3.0/NOPB is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 1.6mm, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply | Accepts 2.5–16V input; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| 2 (GND) | Ground reference | Common substrate connection; must be low-impedance path to system ground plane for noise immunity. |
| 3 (ON/OFF) | Enable control | Active-high logic input; >1.6V enables regulator, <0.15V disables it with active output pulldown. |
| 4 (N/C) | No-connect | Reserved for post-package calibration; must remain floating - no connection to GND, VOUT, or test probes. |
| 5 (OUT) | Regulated output | Delivers stable 3.0V; requires ≥2.2µF ceramic capacitor to GND for loop stability and ESR tolerance ≤1Ω. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 2.75mV typical at 0mA enables operation from near-output voltages - critical for battery-powered backup rails. |
| High PSRR | 75dB @ 1kHz attenuates DC/DC ripple before sensitive analog sections, reducing need for additional filtering stages. |
| Enable with pulldown | ON/OFF pin controls output state while internal pulldown rapidly discharges VOUT on disable - prevents floating rail issues. |
| Thermal & current protection | Integrated brick-wall current limit (150mA) and thermal shutdown (170°C) prevent damage during fault conditions without external circuitry. |
| Low-noise operation | 140µVRMS output noise (300Hz–50kHz, 3.3V out, 50mA) supports precision ADC references and RF subsystems. |
Applications
| Residential Breakers | Solid State Drives (SSD) |
|---|---|
Use Scenario: Real-time arc-fault detection and wireless reporting in smart circuit breakers powered by energy-harvested or coin-cell sources. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying MCU, RF transceiver, and analog sensing circuitry with ultra-low IQ and stable regulation. Use Value: 69μA quiescent current extends battery life beyond 5 years; ±1% accuracy ensures reliable ADC reference voltage across temperature. | Use Scenario: Powering NAND flash I/O buffers and controller peripherals in compact M.2 and U.2 SSD modules. IC Role / Device Role / Timing Role: Secondary low-noise LDO generating clean 3.0V rail for interface logic and timing-critical data paths. Use Value: 75dB PSRR at 1kHz suppresses switching noise from main DC/DC converter, preventing bit errors during high-speed read/write operations. |
| Electricity Meters | Building Automation |
Use Scenario: Isolated auxiliary power for metrology ASICs and communication ICs in ANSI C12.20-compliant revenue meters. IC Role / Device Role / Timing Role: Regulated 3.0V supply for precision sigma-delta ADCs and PLC/G3-PLC modems operating in harsh EMI environments. Use Value: Stable 2.2µF ceramic capacitor support simplifies layout; ±1% output accuracy over –40°C to +85°C ambient meets Class 0.2 metering accuracy specs. | Use Scenario: Distributed sensor node power in HVAC controllers, lighting systems, and occupancy detectors deployed in commercial buildings. IC Role / Device Role / Timing Role: Local 3.0V regulator for low-power ARM Cortex-M0+ microcontrollers and environmental sensors (temp/humidity/CO₂). Use Value: SOT-23-5 footprint enables miniaturized PCB designs; thermal shutdown protects against enclosure overheating in sealed junction boxes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 300mA output, higher IQ (2.5μA), but lower PSRR (60dB @ 1kHz); SOT-23-5 package. | Better suited for higher-current sensor nodes; less effective at rejecting high-frequency switching noise. | Select when >50mA load or ultra-low IQ dominates over PSRR and thermal performance. |
| NCP1117ST30T3G | 800mA output, TO-220/SOT-223, higher dropout (1.2V min), no enable pin; ±2% accuracy. | Designed for high-power industrial supplies; lacks enable and thermal shutdown in same package. | Choose only if legacy board space allows larger package and higher dropout is acceptable. |
Compared with MCP1700T-3002E/TT and NCP1117ST30T3G, LP2980IM5X-3.0/NOPB delivers superior PSRR and tighter accuracy in the same SOT-23-5 footprint, making it optimal for noise-sensitive, thermally constrained, and battery-backed applications where 50mA is sufficient.
Availability
LP2980IM5X-3.0/NOPB is available at Aetrix Electronics and suitable for residential breakers, solid state drives (SSD), and electricity meters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LP2980IM5X-3.0/NOPB 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The LP2980-N product line was engineered specifically for ultra-low-power, wide-input LDO applications in industrial metering, building automation, and portable electronics - emphasizing micropower operation, high PSRR, and robust thermal protection in miniature packages.
FAQ
What is the maximum input voltage rating for LP2980IM5X-3.0/NOPB?
The LP2980IM5X-3.0/NOPB supports a continuous input voltage range of –0.3V to 18V for the new chip revision. Absolute maximum rating is 18V; operation above 16V is not recommended for long-term reliability. This allows use with 12V nominal systems and transient-tolerant designs in industrial environments.
Does LP2980IM5X-3.0/NOPB require an external pull-up resistor on the ON/OFF pin?
No - LP2980IM5X-3.0/NOPB does not require an external pull-up resistor on the ON/OFF pin. When unused, TI recommends tying the ON/OFF pin directly to VIN to ensure enabled operation. The device has no internal pull-up; however, its enable thresholds (≥1.6V high, ≤0.15V low) are compatible with direct connection to common logic rails.
Can LP2980IM5X-3.0/NOPB operate stably with a 1µF output capacitor?
No - LP2980IM5X-3.0/NOPB requires a minimum 2.2µF ceramic output capacitor for guaranteed stability per the datasheet. While 1µF may function in some cases, it violates the specified design condition and risks oscillation or poor transient response. Always use ≥2.2µF X7R/X5R ceramic with ESR ≤1Ω.
What is the thermal shutdown behavior of LP2980IM5X-3.0/NOPB?
LP2980IM5X-3.0/NOPB triggers thermal shutdown at 170°C (typical) and resets at 150°C (typical), providing 20°C hysteresis. During sustained overload, it cycles between shutdown and restart until power dissipation decreases. This protects the die without requiring external thermal management in most SOT-23-5 PCB layouts.
Is LP2980IM5X-3.0/NOPB pin-compatible with earlier LP2980 variants?
Yes - LP2980IM5X-3.0/NOPB uses the same SOT-23-5 (DBV) package and pinout as legacy LP2980 devices, including identical IN, GND, ON/OFF, N/C, and OUT assignments. However, electrical characteristics (e.g., PSRR, dropout, IQ) reflect the "new chip" revision, so functional equivalence requires verification against the specific application's performance requirements.
LP2980IM5X-3.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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):
- 16V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 50mA
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- 1.2 mA
- PSRR:
- 63dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LP2980IM5X-3.0/NOPB FAQ
1.How can I place an order for LP2980IM5X-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2980IM5X-3.0/NOPB 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 LP2980IM5X-3.0/NOPB reliable?
The price and inventory of LP2980IM5X-3.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2980IM5X-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LP2980IM5X-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2980IM5X-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2980IM5X-3.0/NOPB?
LP2980IM5X-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2980IM5X-3.0/NOPB 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 LP2980IM5X-3.0/NOPB?
For technical support, including LP2980IM5X-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2980IM5X-3.0/NOPB requirements.
6.How does Aetrix verify that LP2980IM5X-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2980IM5X-3.0/NOPB 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 LP2980IM5X-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LP2980IM5X-3.0/NOPB?
All LP2980IM5X-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2980IM5X-3.0/NOPB, 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 LP2980IM5X-3.0/NOPB part is unused and in its original packaging.
Return procedure for LP2980IM5X-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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