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Texas Instruments LP2980IM5X-4.7/NOPB
- Part No.:
- LP2980IM5X-4.7/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP2980IM5X-4.7/NOPB.pdf
- Description:
- IC REG LINEAR 4.7V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,379
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Product details
Overview
LP2980IM5X-4.7/NOPB from Texas Instruments is a micropower 50-mA ultra-low-dropout linear regulator in SOT-23-5 package, delivering fixed 4.7 V output with ±0.5% initial accuracy (A-grade), 120 mV typical dropout at 50 mA, and <1 µA shutdown quiescent current. It serves as a precision voltage source for low-power portable systems where battery life and tight regulation are critical.
For engineers reviewing the LP2980IM5X-4.7/NOPB datasheet, LP2980IM5X-4.7/NOPB pinout, LP2980IM5X-4.7/NOPB application, or LP2980IM5X-4.7/NOPB equivalent, key selection criteria include dropout performance at light-to-full load, ON/OFF control interface behavior, ground current vs. load, thermal derating in SOT-23, and compatibility with 1 µF minimum ceramic or tantalum output capacitance.
Technical Context
The LP2980IM5X-4.7/NOPB uses a vertically integrated PNP (VIP) pass transistor architecture to achieve ultra-low dropout and sub-100 µA ground current at 1 mA load. Its internal bandgap reference and error amplifier deliver high DC accuracy and low line regulation (0.007%/V typical).
It integrates active ON/OFF control with logic-level enable (ON/OFF pin threshold: 0.18 V low, 1.6 V high), overtemperature shutdown, and foldback current limiting (150 mA peak, 100 mA short-circuit). Pin 4 is NC and must remain unconnected per TI specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.7 V ±0.5% (A-grade, 25°C, 1 mA load); ensures stable rail for 4.5–4.9 V logic or analog circuitry |
| Max Output Current | 50 mA continuous; supports microcontrollers, sensors, and RF modules with burst-mode loads |
| Dropout Voltage | 120 mV typical at 50 mA; enables operation from 4.82 V input - critical for single-cell Li-ion or Li-poly systems |
| Quiescent Current | 375 µA typical at 50 mA load; <1 µA in shutdown (ON/OFF < 0.18 V); extends battery runtime in sleep states |
| Input Voltage Range | 2.1 V to 16 V; accommodates wide-input sources including DC-DC outputs, multi-cell batteries, and industrial rails |
| Ground Pin Current | 80 µA at 1 mA load; remains low across full load range - improves efficiency vs. traditional LDOs |
| Ripple Rejection | 63 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding sensitive analog circuits |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm max height, gull-wing leads. RoHS-compliant, lead-free (NOPB suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.1–16 V; connects to bulk capacitor (CIN ≥1 µF recommended) |
| 2 (GND) | Power ground reference | Device substrate connection; requires low-impedance PCB return path to minimize noise |
| 3 (ON/OFF) | Enable/disable control input | Active-high logic: >1.6 V enables regulator; <0.18 V disables with <1 µA IQ |
| 4 (NC) | No connect | Factory test/calibration pin - must float; no PCB trace, no solder, no probing |
| 5 (OUT) | Regulated output | Delivers 4.7 V ±0.5%; requires ≥1 µF output capacitor (ceramic/tantalum) for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 120 mV @ 50 mA load enables use with minimal input headroom - essential for aging batteries |
| A-grade output accuracy | ±0.5% initial tolerance at 25°C ensures reliable operation of 4.7 V–rated peripherals without margining |
| Sub-1 µA shutdown current | Reduces system standby power to nanoampere levels - critical for always-on IoT sensor nodes |
| Single 1 µF output capacitor | Eliminates need for large or specialized ESR capacitors; supports compact, low-BOM-cost designs |
| Integrated protection | Thermal shutdown + foldback current limit prevents damage during overload or short-circuit events |
Applications
| Cellular Phone Power Rail | Wearable Sensor Node Supply |
|---|---|
|
Use Scenario: Powers baseband processor I/O or RF front-end bias in GSM/UMTS handsets operating from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary 4.7 V LDO delivering regulated voltage to analog transceivers and clock buffers. Use Value: 120 mV dropout allows regulation down to 3.0 V battery voltage; <1 µA shutdown extends talk time between charges. |
Use Scenario: Supplies MEMS accelerometer and BLE radio in fitness tracker with coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Low-quiescent LDO generating stable 4.7 V rail for mixed-signal SoC and sensor interface. Use Value: 80 µA ground current at 1 mA load minimizes idle drain; ON/OFF pin enables firmware-controlled power gating. |
| Industrial Handheld Terminal | Medical Point-of-Care Monitor |
|
Use Scenario: Provides clean 4.7 V supply to barcode scanner ASIC and touch controller in ruggedized field device. IC Role / Device Role / Timing Role: Secondary LDO post-regulating switched-mode supply to reject ripple and ensure signal integrity. Use Value: 63 dB PSRR at 1 kHz attenuates 1 MHz DC-DC switching noise; −40°C to 125°C junction rating supports extended temperature operation. |
Use Scenario: Powers ECG front-end amplifier and ADC in portable diagnostic device requiring low-noise analog supply. IC Role / Device Role / Timing Role: Precision voltage source for analog signal chain with <160 µV RMS noise (300 Hz–50 kHz). Use Value: 0.5% output accuracy maintains calibration stability; low ground current avoids thermal drift in sealed enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-4702E/TT | 4.7 V fixed, 250 mA max, 1.6 µA IQ, SOT-23-3; no ON/OFF pin; higher dropout (600 mV @ 250 mA) | Lacks enable control; suited for always-on, higher-current apps where footprint is constrained to 3-pin | Choose when shutdown control is unnecessary and load exceeds 50 mA |
| TPS70647QDBVRQ1 | 4.7 V fixed, 150 mA max, 1.3 µA IQ, SOT-23-5; automotive AEC-Q100 qualified; 200 mV dropout @ 150 mA | Qualified for automotive; higher current but larger dropout compromises low-voltage battery operation | Choose for automotive-grade designs requiring qualification and higher output capability |
Compared with MCP1700T-4702E/TT and TPS70647QDBVRQ1, the LP2980IM5X-4.7/NOPB offers superior dropout performance at 50 mA and integrated enable functionality in the same SOT-23-5 footprint - making it optimal for space-constrained, battery-sensitive consumer and industrial portable devices.
Availability
LP2980IM5X-4.7/NOPB is available at Aetrix Electronics and suitable for cellular phones, wearable sensors, handheld terminals, and medical point-of-care monitors requiring stable component supply across production lifecycles.
Supply support for LP2980IM5X-4.7/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 company designing analog ICs, embedded processors, and system solutions for industrial, automotive, and personal electronics markets.
The LP2980-N series was developed specifically for micropower, ultra-low-dropout regulation in battery-powered portable equipment - emphasizing accuracy, low IQ, and minimal external component count.
FAQ
What is the minimum input voltage required for LP2980IM5X-4.7/NOPB to maintain regulation?
The LP2980IM5X-4.7/NOPB requires VIN ≥ VOUT + dropout voltage. With 4.7 V nominal output and 120 mV typical dropout at 50 mA, the minimum functional input is ~4.82 V under full load. At 1 mA load, dropout drops to 7 mV, allowing regulation from as low as 4.707 V - enabling operation near end-of-discharge in Li-ion cells.
Can LP2980IM5X-4.7/NOPB be used with ceramic output capacitors?
Yes, LP2980IM5X-4.7/NOPB supports multilayer ceramic capacitors (MLCCs), but requires ≥2.2 µF for 4.7 V version to ensure stability due to low ESR. Verified MLCC part numbers include Murata GRM42-6Y5V225Z16 and Tokin 1E225ZY5U-C203. Avoid using <1 µF ceramics, as they may cause oscillation.
What happens if pin 4 (NC) of LP2980IM5X-4.7/NOPB is accidentally connected to ground?
Connecting pin 4 to ground violates TI's absolute requirement that it remain floating. This pin is reserved for post-package calibration trim; grounding it may activate internal trim circuitry, forcing VOUT out of ±0.5% tolerance or causing unpredictable startup behavior. Always leave pin 4 unconnected on PCB layout and assembly.
How does the ON/OFF pin of LP2980IM5X-4.7/NOPB behave during power-up?
The LP2980IM5X-4.7/NOPB requires ON/OFF ≥1.6 V to initiate startup. If ON/OFF rises slower than VIN, the device enters a defined power-on reset state and begins regulation only after ON/OFF crosses threshold. Tie ON/OFF to VIN via 100 kΩ resistor if enable control is unused - never leave it floating.
Is LP2980IM5X-4.7/NOPB compatible with tantalum output capacitors?
Yes - LP2980IM5X-4.7/NOPB is fully compatible with surface-mount solid tantalum capacitors. A minimum of 1 µF is sufficient (e.g., Kemet T491A105M010AS), and 2.2 µF (e.g., Kemet T491A225M010AS) improves transient response and noise rejection. Tantalum provides stable ESR across temperature and avoids microphonics common in ceramics.
LP2980IM5X-4.7/NOPB 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):
- 4.7V
- 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-4.7/NOPB FAQ
1.How can I place an order for LP2980IM5X-4.7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2980IM5X-4.7/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-4.7/NOPB reliable?
The price and inventory of LP2980IM5X-4.7/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-4.7/NOPB is usually 5 days.
3.What payment methods are accepted for LP2980IM5X-4.7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2980IM5X-4.7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2980IM5X-4.7/NOPB?
LP2980IM5X-4.7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2980IM5X-4.7/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-4.7/NOPB?
For technical support, including LP2980IM5X-4.7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2980IM5X-4.7/NOPB requirements.
6.How does Aetrix verify that LP2980IM5X-4.7/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2980IM5X-4.7/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-4.7/NOPB meets industry standards.
7.What is the process for return or replacement of LP2980IM5X-4.7/NOPB?
All LP2980IM5X-4.7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2980IM5X-4.7/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-4.7/NOPB part is unused and in its original packaging.
Return procedure for LP2980IM5X-4.7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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