My Inquiry
My Account
Texas Instruments LP2980IM5X-2.5
- Part No.:
- LP2980IM5X-2.5
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP2980IM5X-2.5.pdf
- Description:
- IC REG LINEAR 2.5V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,833
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP2980IM5X-2.5 from Texas Instruments is a fixed-output, micropower, ultra-low dropout linear regulator delivering 2.5 V at up to 50 mA with ±0.5% output accuracy (A-grade), 69 µA quiescent current at zero load, and stable operation with 2.2 µF ceramic output capacitors. It serves as a precision post-regulator in low-power microcontroller power rails and sensor biasing circuits where input voltage ranges from 2.5 V to 16 V.
For engineers reviewing the LP2980IM5X-2.5 datasheet, LP2980IM5X-2.5 pinout, LP2980IM5X-2.5 application, or LP2980IM5X-2.5 equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and PSRR performance, and real-world application constraints for embedded power design.
Technical Context
The LP2980IM5X-2.5 implements a CMOS-based LDO architecture with an internal 1.2 V bandgap reference, active-high enable (ON/OFF) control, and integrated undervoltage lockout (UVLO) with 2.2 V rising threshold and 0.13 V hysteresis. Its pass transistor operates in ohmic region under full load, enabling dropout as low as 120 mV at 50 mA.
It features brick-wall current limiting (150 mA short-circuit), thermal shutdown at 170 °C with 20 °C hysteresis, and output pulldown activation during disable or UVLO conditions. PSRR reaches 75 dB at 1 kHz and 45 dB at 1 MHz-optimized to suppress switching noise from upstream DC/DC converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±0.5% (A-grade); ensures stable MCU core voltage under line/load/temp variation. |
| Input Voltage Range | 2.5 V to 16 V; supports direct connection to Li-ion batteries, industrial 5–12 V rails, or DC/DC outputs. |
| Max Output Current | 50 mA continuous; sufficient for low-power MCUs, sensors, and logic I/O banks without external boost. |
| Quiescent Current | 69 µA at 0 mA load; enables >10-year battery life in always-on IoT endpoints. |
| Dropout Voltage | 120 mV at 50 mA (25 °C); allows regulation from 2.62 V input-critical for brownout resilience. |
| PSRR | 75 dB @ 1 kHz, 45 dB @ 1 MHz; attenuates switching ripple from buck converters without added LC filtering. |
| Operating Temp | –40 °C to +125 °C junction; qualified for automotive cabin, industrial metering, and building automation environments. |
Pinout & Package
LP2980IM5X-2.5 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9 mm × 1.6 mm, optimized for space-constrained PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply | Accepts 2.5–16 V; requires ≥1 µF ceramic capacitor to GND for stability and transient response. |
| 2 (GND) | Power ground | Common substrate reference; must be low-impedance connection to minimize noise coupling. |
| 3 (ON/OFF) | Enable control | Active-high logic input; drives high (>1.6 V) to enable regulator, low (<0.15 V) to disable with output pulldown. |
| 4 (N/C) | No-connect | Reserved for factory calibration; must remain floating-no connection to GND, VIN, or test probes. |
| 5 (OUT) | Regulated output | Delivers 2.5 V ±0.5%; requires ≥2.2 µF ceramic capacitor to GND for phase margin and ESR stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 120 mV @ 50 mA enables operation from near-VOUT input sources-reducing heat and extending battery runtime. |
| High PSRR | 75 dB @ 1 kHz suppresses upstream DC/DC switching noise, eliminating need for additional ferrite beads or LC filters. |
| Enable with pulldown | Active-high ON/OFF pin plus internal output pulldown ensures fast, controlled discharge of downstream capacitance on disable. |
| UVLO with hysteresis | 2.2 V turn-on / 2.07 V turn-off prevents oscillation during marginal input conditions-critical for reliable cold-start behavior. |
| Thermal protection | 170 °C shutdown with 20 °C hysteresis prevents damage during sustained overload or poor heatsinking. |
Applications
| Residential Breakers | Solid State Drives (SSD) |
|---|---|
Use Scenario: Powering microcontroller, communication ICs, and current-sense amplifiers in smart circuit breakers with wide input voltage range (e.g., 5–12 V DC bus). IC Role / Device Role / Timing Role: Primary 2.5 V LDO for digital logic and analog front-end biasing-ensuring accurate trip detection and wireless reporting. Use Value: Ultra-low IQ (69 µA) extends backup battery life; ±0.5% accuracy maintains ADC reference integrity across temperature. | Use Scenario: Supplying 2.5 V to NAND flash interface buffers and controller I/O banks in compact SSD modules. IC Role / Device Role / Timing Role: Low-noise post-regulator decoupling switching converter ripple before high-speed data paths. Use Value: 75 dB PSRR at 1 kHz eliminates timing jitter induced by DC/DC switching noise-preserving signal integrity. |
| Electricity Meters | Building Automation |
Use Scenario: Providing stable 2.5 V rail to metrology ADCs and real-time clocks in ANSI C12.20-compliant electricity meters operating from 3.3–12 V auxiliary supplies. IC Role / Device Role / Timing Role: Precision voltage reference source for 24-bit sigma-delta ADCs-directly impacting energy measurement accuracy. Use Value: ±0.5% output tolerance over –40 °C to +125 °C ensures <0.1% gain error drift-meeting Class 0.2 metering standards. | Use Scenario: Powering Zigbee/BLE SoCs and environmental sensors (temp/humidity/CO₂) in wall-mounted HVAC controllers with limited board area. IC Role / Device Role / Timing Role: Micropower LDO for always-on sensor subsystems requiring long-term reliability and low standby consumption. Use Value: 69 µA IQ and 2.2 µF ceramic stability reduce BOM count and footprint-enabling ultra-thin form factors. |
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 | 30 mA max output, 1.6 µA IQ, no enable pin, ±2% accuracy | Limited to ultra-low-current sensor nodes; lacks ON/OFF control and precision needed for MCU cores | Select only for sub-10 mA loads where enable and accuracy are non-critical |
| TLC7701QDBVRQ1 | 100 mA output, 12 µA IQ, reset delay, ±2% accuracy, automotive AEC-Q100 Grade 1 | Higher current and automotive qualification-but wider tolerance and no pulldown function | Prefer for automotive body electronics requiring reset signaling; avoid where 2.5 V precision and fast discharge are required |
Compared with MCP1700T-2502E/TT and TLC7701QDBVRQ1, LP2980IM5X-2.5 uniquely balances 50 mA capability, ±0.5% accuracy, active enable with pulldown, and 75 dB PSRR-making it optimal for precision, low-noise, medium-current embedded power rails.
Availability
LP2980IM5X-2.5 is available at Aetrix Electronics and suitable for residential breakers, solid state drives (SSD), and electricity meters requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for LP2980IM5X-2.5 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 for industrial, automotive, and consumer applications.
The LP2980-N product line delivers micropower, ultra-low-dropout regulators optimized for space- and power-constrained systems-designed specifically for precision biasing of MCUs, sensors, and metrology circuits in harsh thermal environments.
FAQ
What is the maximum input voltage rating for LP2980IM5X-2.5?
The absolute maximum continuous input voltage for LP2980IM5X-2.5 is 18 V, per the latest revision of the TI datasheet (SNOS733R, February 2025). Operation above 16 V is not recommended in normal use, as the recommended operating range is 2.5 V to 16 V. Exceeding 18 V risks permanent damage to the device.
Does LP2980IM5X-2.5 require an external pull-up on the ON/OFF pin?
No-LP2980IM5X-2.5 does not require an external pull-up on the ON/OFF pin. When unused, the ON/OFF pin should be tied directly to VIN to ensure the regulator remains enabled. The device has no internal pull-up; leaving the pin floating may cause unpredictable enable/disable behavior due to noise susceptibility.
Can LP2980IM5X-2.5 operate stably with a 1 µF output capacitor?
No-LP2980IM5X-2.5 requires a minimum 2.2 µF ceramic output capacitor for guaranteed stability across temperature and load. While the datasheet notes that ≥1 µF is the *effective* minimum after derating, TI specifies 2.2 µF as the nominal value for new-chip variants. Using only 1 µF risks phase margin loss and potential oscillation, especially at high temperatures or full load.
What is the dropout voltage of LP2980IM5X-2.5 at 50 mA and 125 °C?
At 50 mA load and +125 °C junction temperature, the dropout voltage of LP2980IM5X-2.5 is 184 mV (typical), as specified in Section 5.5 of the SNOS733R datasheet. This value reflects worst-case thermal degradation and confirms the device maintains regulation down to VIN = 2.684 V under full industrial temperature stress.
Is pin 4 (N/C) on LP2980IM5X-2.5 safe to connect to ground for ESD protection?
No-pin 4 (N/C) on LP2980IM5X-2.5 must remain unconnected and floating. It is reserved for post-packaging calibration and contains active trim circuitry. Connecting it to ground-or any voltage-can force the output voltage out of specification, damage internal calibration, or induce erratic behavior. TI explicitly warns against continuity testing or probing this pin.
LP2980IM5X-2.5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
LP2980IM5X-2.5 FAQ
1.How can I place an order for LP2980IM5X-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2980IM5X-2.5 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-2.5 reliable?
The price and inventory of LP2980IM5X-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2980IM5X-2.5 is usually 5 days.
3.What payment methods are accepted for LP2980IM5X-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2980IM5X-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2980IM5X-2.5?
LP2980IM5X-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2980IM5X-2.5 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-2.5?
For technical support, including LP2980IM5X-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2980IM5X-2.5 requirements.
6.How does Aetrix verify that LP2980IM5X-2.5 is sourced from the original manufacturer or authorized distributors?
All LP2980IM5X-2.5 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-2.5 meets industry standards.
7.What is the process for return or replacement of LP2980IM5X-2.5?
All LP2980IM5X-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with LP2980IM5X-2.5, 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-2.5 part is unused and in its original packaging.
Return procedure for LP2980IM5X-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP2980IM5X-2.5 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
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
