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Texas Instruments LP2980IM5-2.5/NOPB
- Part No.:
- LP2980IM5-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP2980IM5-2.5/NOPB.pdf
- Description:
- IC REG LINEAR 2.5V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
LP2980IM5-2.5/NOPB from Texas Instruments is a fixed 2.5V, micropower, ultra-low dropout linear regulator in SOT-23-5 package, delivering up to 50mA output current with ±0.5% initial accuracy, 120mV dropout at 50mA, and 69μA quiescent current at zero load. It powers low-voltage microcontrollers in solid-state drives and electricity meters.
For engineers reviewing the LP2980IM5-2.5/NOPB datasheet, LP2980IM5-2.5/NOPB pinout, LP2980IM5-2.5/NOPB application, or LP2980IM5-2.5/NOPB equivalent, key selection criteria include dropout voltage at full load, PSRR at 1kHz/1MHz, thermal shutdown threshold, enable pin logic thresholds, and stability with 2.2µF ceramic output capacitors.
Technical Context
The LP2980IM5-2.5/NOPB uses a CMOS pass transistor architecture with internal bandgap reference and error amplifier, enabling ultra-low dropout and high PSRR. Its active-high ON/OFF pin supports system-level power sequencing, while integrated UVLO (2.2V rising, 1.9V falling) ensures clean startup under brownout conditions.
Thermal protection triggers at 170°C with 20°C hysteresis, and current limiting is brick-wall type (150mA typical). The device features internal soft-start and output pulldown during disable, reducing inrush and ensuring controlled discharge of output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOUT | Fixed 2.5V output; stable for powering 2.5V I/O domains and low-voltage MCUs. |
| VIN Range | 2.5V to 16V input; supports wide supply rails including partially discharged batteries and industrial 12V buses. |
| Dropout Voltage | 120mV at 50mA load; enables regulation from 2.62V input, critical for battery-powered longevity. |
| Quiescent Current | 69μA at ILOAD = 0mA; minimizes standby power loss in always-on metering and building automation nodes. |
| PSRR | 75dB @ 1kHz, 45dB @ 1MHz; effectively suppresses switching noise from upstream DC/DC converters. |
| Accuracy | ±0.5% initial tolerance, ±1% over load/temperature; meets tight voltage margin requirements of modern 2.5V logic. |
| Operating Temp | –40°C to +125°C junction; qualified for industrial and smart-grid applications without derating. |
Pinout & Package
LP2980IM5-2.5/NOPB is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 1.6mm, optimized for space-constrained PCB layouts in SSDs and residential breakers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply | Accepts 2.5–16V; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| 2 (GND) | Ground reference | Common substrate connection; must be low-impedance path to minimize noise coupling. |
| 3 (ON/OFF) | Enable control | Active-high logic: >1.6V enables regulator; <0.15V disables it with internal pulldown activation. |
| 4 (N/C) | No-connect | Reserved for post-package calibration; must remain floating-no connection to GND or test probes. |
| 5 (OUT) | Regulated output | Delivers 2.5V/50mA; requires ≥2.2µF ceramic capacitor to GND for stability across temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 120mV at full 50mA load enables operation from near-output voltage rails, extending battery life. |
| High PSRR | 75dB @ 1kHz attenuates DC/DC ripple before sensitive analog or RF circuitry, reducing need for extra filtering. |
| Enable with pulldown | Active-high ON/OFF pin plus internal output pulldown ensures fast, controlled discharge when disabled. |
| UVLO with hysteresis | 2.2V turn-on / 1.9V turn-off (0.3V hysteresis) prevents oscillation during marginal input conditions. |
| Thermal & current protection | 170°C shutdown with 20°C hysteresis and 150mA current limit prevent damage during overload or poor heatsinking. |
Applications
| Residential Breakers | Solid State Drives (SSD) |
|---|---|
Use Scenario: Powering real-time monitoring ICs and communication interfaces in smart circuit breakers operating from 3.3V or 5V rails. IC Role / Device Role / Timing Role: Primary 2.5V LDO supplying MCU core voltage and sensor interface logic. Use Value: Ultra-low quiescent current extends backup battery life during mains outage; 125°C rating ensures reliability in enclosed breaker enclosures. | Use Scenario: Providing clean, low-noise 2.5V supply to NAND flash controllers and DRAM buffers in compact M.2 SSD modules. IC Role / Device Role / Timing Role: Post-regulator stabilizing switched-mode supply outputs to meet JEDEC DDR timing margins. Use Value: 75dB PSRR at 1kHz suppresses DC/DC switching artifacts, preventing data corruption during high-speed transfers. |
| Electricity Meters | Building Automation |
Use Scenario: Supplying metrology ADCs and isolated communication transceivers in ANSI C12.20-compliant revenue meters. IC Role / Device Role / Timing Role: Precision 2.5V reference-grade rail for analog front-end signal conditioning. Use Value: ±1% total accuracy over –40°C to +85°C ambient ensures consistent measurement performance across seasonal extremes. | Use Scenario: Powering wireless SoCs (e.g., Zigbee, Thread) and environmental sensors in HVAC controllers mounted in unconditioned spaces. IC Role / Device Role / Timing Role: Always-on 2.5V supply enabling rapid wake-from-sleep response for occupancy detection. Use Value: 69μA IQ allows multi-year operation on coin-cell batteries; 125°C rating supports deployment in hot attic or boiler-room environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 30mA max output, 1.6μA IQ, 170mV dropout at 250mA (but rated only to 250mA), no enable pin. | Lacks ON/OFF control and thermal shutdown; unsuitable for systems requiring dynamic power gating or high-reliability fault protection. | Choose only for ultra-low-power, low-current (<30mA), non-sequenced applications where enable and robust protection are unnecessary. |
| TPS70625DBVR | 150mA output, 1μA IQ, 220mV dropout at 150mA, active-low enable, 1% accuracy over temp. | Higher current capability but larger dropout and lower PSRR (60dB @ 1kHz); different enable polarity requires board redesign. | Select when higher load current is needed and system design accommodates active-low enable logic and relaxed PSRR requirements. |
Compared with MCP1700T-2502E/TT and TPS70625DBVR, LP2980IM5-2.5/NOPB uniquely balances 50mA capability, ultra-low dropout (120mV), high PSRR (75dB), and active-high enable in a 5-pin SOT-23 - making it optimal for space-constrained, noise-sensitive, and thermally demanding industrial applications.
Availability
LP2980IM5-2.5/NOPB is available at Aetrix Electronics and suitable for solid state drives (SSD), electricity meters, and residential breakers requiring stable component supply across extended product lifecycles.
Supply support for LP2980IM5-2.5/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 ICs.
The LP2980-N series was designed specifically for micropower, ultra-low-dropout regulation in industrial and energy infrastructure applications where precision, thermal resilience, and long-term reliability are mandatory.
FAQ
What is the maximum input voltage rating for LP2980IM5-2.5/NOPB?
The LP2980IM5-2.5/NOPB has an absolute maximum continuous input voltage of 18V for the new chip revision. Its recommended operating input range is 2.5V to 16V. Exceeding 18V risks permanent damage, and operation above 16V falls outside guaranteed specifications per the datasheet's Recommended Operating Conditions table.
Does LP2980IM5-2.5/NOPB require an external capacitor on the ON/OFF pin?
No, LP2980IM5-2.5/NOPB does not require an external capacitor on the ON/OFF pin. The pin is a standard CMOS input with internal hysteresis and pull-down when disabled. TI's datasheet specifies only that the pin be driven directly by a logic signal or tied to VIN if unused - no decoupling or filtering capacitor is specified or recommended.
Can LP2980IM5-2.5/NOPB operate stably with a 1µF output capacitor?
No - LP2980IM5-2.5/NOPB requires a minimum 2.2µF ceramic output capacitor for guaranteed stability across temperature and load. While the datasheet notes a nominal 1µF minimum effective capacitance (after 50% derating), TI explicitly states "output capacitance (for new chip): 1 to 2.2 µF" and mandates ≥2.2µF for all designs using ceramic capacitors to ensure phase margin and transient response.
What is the thermal shutdown behavior of LP2980IM5-2.5/NOPB?
LP2980IM5-2.5/NOPB activates thermal shutdown at 170°C (typical) junction temperature and resets (re-enables) at 150°C (typical), providing 20°C hysteresis. During shutdown, the output is disabled and the internal pass transistor turns off. Once cooled below 150°C, the device automatically resumes regulation without external intervention - a feature critical for unattended industrial deployments.
Is pin 4 (N/C) on LP2980IM5-2.5/NOPB safe to leave unconnected?
Yes - pin 4 is designated N/C (No Connect) and must remain floating. It is reserved for post-packaging calibration and contains internal trim circuitry. Connecting it to ground, VOUT, or any test probe may activate the trim network and force VOUT out of specification. TI explicitly warns against continuity testing or any physical connection to this pin.
LP2980IM5-2.5/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):
- 2.5V
- 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
LP2980IM5-2.5/NOPB FAQ
1.How can I place an order for LP2980IM5-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2980IM5-2.5/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 LP2980IM5-2.5/NOPB reliable?
The price and inventory of LP2980IM5-2.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2980IM5-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LP2980IM5-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2980IM5-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2980IM5-2.5/NOPB?
LP2980IM5-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2980IM5-2.5/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 LP2980IM5-2.5/NOPB?
For technical support, including LP2980IM5-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2980IM5-2.5/NOPB requirements.
6.How does Aetrix verify that LP2980IM5-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2980IM5-2.5/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 LP2980IM5-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LP2980IM5-2.5/NOPB?
All LP2980IM5-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2980IM5-2.5/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 LP2980IM5-2.5/NOPB part is unused and in its original packaging.
Return procedure for LP2980IM5-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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