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Texas Instruments LP2980IM5-3.0
- Part No.:
- LP2980IM5-3.0
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP2980IM5-3.0.pdf
- Description:
- IC REG LINEAR 3V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,167
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Product details
Overview
LP2980IM5-3.0 from Texas Instruments is a micropower 50-mA ultra-low-dropout linear regulator in SOT-23-5 package, delivering fixed 3.0-V output with ±0.5% initial accuracy (A-grade), 120-mV typical dropout at 50-mA load, and <1-μA quiescent current in shutdown mode. It serves as a precision local power rail for low-power microcontrollers and RF subsystems in portable battery-powered systems.
For engineers reviewing the LP2980IM5-3.0 datasheet, LP2980IM5-3.0 pinout, LP2980IM5-3.0 application, or LP2980IM5-3.0 equivalent, key selection criteria include guaranteed 50-mA output under 2.1–16-V input, ON/OFF logic control with 0.18-V turnoff threshold, thermal/overcurrent protection, and stability with only 1-μF output capacitance.
Technical Context
The LP2980IM5-3.0 uses a vertically integrated PNP (VIP) pass transistor architecture to achieve ultra-low dropout and minimal ground current-375 μA typical at 50-mA load and 80 μA at 1-mA load. Its internal bandgap reference and error amplifier deliver high DC accuracy and tight line regulation (0.007%/V typical).
It features active ON/OFF control with defined logic thresholds (ON ≥1.6 V, OFF ≤0.18 V), sleep-mode operation with <1-μA shutdown current, and built-in foldback current limiting (100–150 mA peak) plus thermal shutdown at ~150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±0.5% (A-grade) - ensures stable supply for 3.0-V logic and analog circuitry without external feedback. |
| Max Output Current | 50 mA continuous - sufficient for MCU cores, sensors, and low-power RF ICs in compact portable designs. |
| Dropout Voltage | 120 mV typical at 50 mA - enables operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V min) without brownout. |
| Input Voltage Range | 2.1 V to 16 V - supports wide-input battery and adapter-fed applications while surviving transient surges. |
| Quiescent Current | 375 μA typical at full load; <1 μA in shutdown - extends battery life in always-on or duty-cycled systems. |
| Output Capacitor | 1 μF minimum (tantalum/ceramic) - reduces BOM count and PCB area vs. legacy LDOs requiring ≥10 μF. |
| Ripple Rejection | 63 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding sensitive analog circuits. |
| Operating Temp | −40°C to +125°C junction - qualified for industrial and automotive cabin-temperature environments. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm max height, gull-wing leads, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2.1–16 V; connects to bulk capacitor and upstream power source; reverse-biased internal diode prevents backfeed from OUT. |
| 2 - GND | Ground reference | Device substrate connection; must be low-impedance path to system ground plane to ensure stability and thermal performance. |
| 3 - ON/OFF | Enable/disable control input | Active-high logic: ≥1.6 V enables regulation; ≤0.18 V disables output and reduces IQ to <1 μA; requires external pull-up if unused. |
| 4 - NC | No-connect terminal | Factory test/calibration pad; must remain floating-no PCB trace, no solder mask opening, no continuity testing. |
| 5 - OUT | Regulated output | Delivers 3.0 V ±0.5%; requires ≥1 μF ceramic/tantalum capacitor placed within 3 mm of pin for loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 120 mV at 50 mA enables use with depleted batteries or low-headroom supplies without compromising regulation. |
| High-accuracy output | ±0.5% initial tolerance (A-grade) eliminates need for post-production calibration in precision sensor or ADC reference rails. |
| Micro-power shutdown | <1 μA IQ in OFF state extends shelf life and runtime in intermittently powered IoT edge nodes and wearables. |
| Single-capacitor stability | Stable with 1 μF output capacitor-reduces cost, footprint, and ESR sensitivity vs. traditional LDOs requiring ≥10 μF. |
| Integrated protection | Thermal shutdown and foldback current limiting prevent damage during overload, short-circuit, or ambient overheating. |
| Wide input range | 2.1–16 V operation supports multi-chemistry battery packs (Li-ion, NiMH, alkaline) and unregulated wall adapters. |
Applications
| Portable Medical Sensor Node | Industrial Wireless Transceiver Module |
|---|---|
|
Use Scenario: Compact wearable pulse oximeter using a 3.0-V analog front-end and BLE SoC powered by coin cell or rechargeable LiPo. IC Role / Device Role / Timing Role: Primary 3.0-V LDO supplying bias to optical sensor, ADC, and BLE radio; provides clean, low-noise rail independent of battery voltage sag. Use Value: 120-mV dropout allows >20% longer runtime from 3.0-V cutoff; <1-μA shutdown extends shelf life beyond 2 years. |
Use Scenario: Battery-operated LoRaWAN node deployed in remote factory monitoring, operating 24/7 on primary lithium thionyl chloride cells. IC Role / Device Role / Timing Role: Local 3.0-V regulator for ultra-low-power microcontroller and sub-GHz transceiver; enabled only during scheduled transmit windows. Use Value: 0.18-V ON/OFF threshold ensures reliable disable during deep-sleep; 63-dB PSRR rejects switching noise from boost converter powering RF stage. |
| Automotive Cabin-Camera Power Rail | Handheld Test Instrument Front-End |
|
Use Scenario: Low-light CMOS image sensor module in rear-view camera, powered from 12-V vehicle bus via step-down converter. IC Role / Device Role / Timing Role: Post-regulator for 3.0-V sensor core and ISP; filters ripple from switching supply and handles cold-crank transients. Use Value: −40°C to +125°C rating ensures operation across full automotive ambient range; 175.7°C/W RθJA enables conduction cooling on small PCB area. |
Use Scenario: Portable multimeter with 3.0-V LCD display, precision ADC, and isolated serial interface, powered by AA batteries. IC Role / Device Role / Timing Role: Precision 3.0-V reference rail for 16-bit ADC and display driver; maintains accuracy over battery discharge curve. Use Value: ±0.5% output tolerance eliminates calibration drift; 0.007%/V line regulation ensures consistent readings despite input voltage variation. |
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 | 300-mA rated, 1.6-µA quiescent current, no ON/OFF pin, SOT-23-3 package | Lacks enable control and has higher IQ; suitable only where shutdown is not required and higher current headroom is needed | Select when >50-mA load or simplified 3-pin layout is prioritized over ultra-low IQ and enable functionality |
| TPS70630DRVR | 150-mA rated, 1-µA IQ, active-low EN, 170-mV dropout at 150 mA, WSON-6 package | Higher current, smaller footprint, but requires level-shifting for active-low enable and has tighter layout constraints | Select when board space is critical and system-level enable polarity can accommodate active-low logic |
Compared with MCP1700T-3002E/TT and TPS70630DRVR, the LP2980IM5-3.0 uniquely balances ultra-low dropout (120 mV), sub-1-µA shutdown, and active-high ON/OFF control in a standard SOT-23-5-making it optimal for battery-constrained, intermittently powered systems requiring precise 3.0-V regulation without design compromises.
Availability
LP2980IM5-3.0 is available at Aetrix Electronics and suitable for portable medical devices, industrial wireless sensors, automotive cabin electronics, and handheld test equipment requiring stable component supply, long-lifecycle support, and guaranteed parametric compliance.
Supply support for LP2980IM5-3.0 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, embedded processing, and connectivity technologies, with decades of expertise in power management ICs for mission-critical applications.
The LP2980-N series was designed specifically for micropower, ultra-low-dropout regulation in space- and energy-constrained battery-powered systems-emphasizing precision, efficiency, and robustness across extended temperature ranges.
FAQ
What is the minimum input voltage required for LP2980IM5-3.0 to regulate 3.0 V?
The LP2980IM5-3.0 requires an input voltage at least 120 mV above the nominal output to maintain regulation under full 50-mA load-so VIN ≥ 3.12 V. At lighter loads, dropout drops to 7 mV (VIN ≥ 3.007 V). The absolute minimum specified input is 2.1 V, but regulation is only guaranteed when VIN exceeds VOUT + dropout voltage per load and temperature conditions.
Can LP2980IM5-3.0 operate with a 1-μF ceramic output capacitor?
Yes, the LP2980IM5-3.0 is stable with a 1-μF ceramic capacitor, though TI recommends ≥2.2 μF for improved transient response and noise performance. For 3.0-V output, verified 2.2-μF MLCCs include Murata GRM42-6Y5V225Z16 and Tokin 1E225ZY5U-C203-both meeting ESR and temperature-coefficient requirements across −40°C to +125°C.
What happens to the output when the ON/OFF pin is left floating on LP2980IM5-3.0?
If the ON/OFF pin is left floating, the LP2980IM5-3.0 may power up unpredictably due to noise coupling or internal leakage. TI explicitly requires active termination: tie to IN (for always-on) or add a pull-down resistor to GND (for default-off). Floating violates recommended operating conditions and risks intermittent regulation or excessive ground current.
Does LP2980IM5-3.0 have reverse-current protection?
No, the LP2980IM5-3.0 lacks reverse-current blocking. Its internal PNP pass device includes a parasitic collector-emitter diode that conducts if VOUT > VIN-potentially backfeeding upstream circuitry. External reverse-blocking (e.g., Schottky diode in series with IN) is required in systems where output voltage may exceed input, such as during hot-swap or battery-swapping events.
Is LP2980IM5-3.0 RoHS-compliant and halogen-free?
Yes, LP2980IM5-3.0 is RoHS-compliant (per TI's official product change notice PCN# Z1207-01) and halogen-free. It meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified to AEC-Q100 Grade 3 for automotive applications-though the IM5 suffix denotes commercial temperature grade (−40°C to +125°C).
LP2980IM5-3.0 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):
- 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
LP2980IM5-3.0 FAQ
1.How can I place an order for LP2980IM5-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2980IM5-3.0 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 LP2980IM5-3.0 reliable?
The price and inventory of LP2980IM5-3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2980IM5-3.0 is usually 5 days.
3.What payment methods are accepted for LP2980IM5-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2980IM5-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2980IM5-3.0?
LP2980IM5-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2980IM5-3.0 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 LP2980IM5-3.0?
For technical support, including LP2980IM5-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2980IM5-3.0 requirements.
6.How does Aetrix verify that LP2980IM5-3.0 is sourced from the original manufacturer or authorized distributors?
All LP2980IM5-3.0 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 LP2980IM5-3.0 meets industry standards.
7.What is the process for return or replacement of LP2980IM5-3.0?
All LP2980IM5-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LP2980IM5-3.0, 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 LP2980IM5-3.0 part is unused and in its original packaging.
Return procedure for LP2980IM5-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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