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Texas Instruments LP2992ILD-5.0
- Part No.:
- LP2992ILD-5.0
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LP2992ILD-5.0.pdf
- Description:
- IC REG LINEAR 5V 250MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,855
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Product details
Overview
LP2992ILD-5.0 from Texas Instruments is a fixed-output, micropower, ultra-low-dropout linear regulator in 5-pin SOT-23 (DBV) package, delivering up to 250mA with ±0.5% output accuracy (new chip), 30µVRMS output noise (with 10nF bypass capacitor), and 70dB PSRR at 1kHz - designed for powering noise-sensitive analog circuits and low-voltage MCUs in space-constrained industrial systems.
For engineers reviewing the LP2992ILD-5.0 datasheet, LP2992ILD-5.0 pinout, LP2992ILD-5.0 application, or LP2992ILD-5.0 equivalent, key selection criteria include dropout voltage at 250mA (225–260mV), shutdown current (1.12µA typ), stability with 2.2µF ceramic output capacitors, and BYPASS pin functionality for noise reduction.
Technical Context
The LP2992ILD-5.0 employs a CMOS pass transistor architecture with internal bandgap reference and error amplifier, enabling ultra-low dropout operation down to 225mV at full 250mA load and –40°C to +125°C junction temperature range. Its dedicated BYPASS pin connects to a 10nF capacitor to reduce reference noise, directly enabling sub-30µVRMS output noise performance.
It integrates active-high enable (ON/OFF) logic with 0.72V low-threshold and 0.85V high-threshold (new chip), thermal shutdown, current limiting (300–350mA peak), and internal output pulldown during disable - supporting robust power sequencing in battery-powered and thermally demanding applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V - precisely regulated without external feedback components; supports 3.3V/5V MCU core and I/O rails. |
| Max Output Current | 250 mA - sufficient for powering multiple low-power peripherals (e.g., sensors, ADCs, RF front-ends) from a single LDO. |
| Dropout Voltage | 225 mV (typ) at 250 mA, 25°C - enables regulation from 5.225V input, critical for battery-powered systems near end-of-discharge. |
| Output Accuracy | ±0.5% (new chip, 25°C) - meets tight tolerance requirements of precision analog signal chains and reference voltage supplies. |
| Ground Pin Current | 875 µA (typ) at 250 mA load - ultra-low quiescent current preserves battery life in always-on monitoring nodes. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters, reducing need for additional filtering stages. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz, with 10 nF BYPASS cap) - suitable for powering PLLs, ADC references, and audio codecs. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive modules, motor control boards, and industrial PLC I/O sections. |
Pinout & Package
LP2992ILD-5.0 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9 mm × 2.8 mm, optimized for high thermal resistance (RθJA = 178.6°C/W) on standard PCB layouts and compatible with automated pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input supply connection | Accepts 2.5V–16V input; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| OUT (Pin 5) | Regulated output | Delivers fixed 5.0V; stable with ≥2.2µF ceramic output capacitor (ESR ≤1Ω). |
| GND (Pin 2) | Power ground reference | Common return path for IN, OUT, BYPASS, and ON/OFF; must be low-impedance plane for noise control. |
| ON/OFF (Pin 3) | Enable control input | Active-high logic: >0.85V enables regulator; <0.72V disables with internal pulldown to discharge OUT. |
| BYPASS (Pin 4) | Noise reduction node | Connects to 10nF capacitor to GND to filter reference voltage noise, enabling 30µVRMS output noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-noise regulation | 30µVRMS output noise with 10nF BYPASS cap - eliminates need for post-LDO LC filters in sensitive analog signal paths. |
| Micropower operation | 69µA ground current at zero load - extends battery runtime in IoT edge sensors and portable diagnostic tools. |
| Wide-input compatibility | 2.5V–16V input range - supports direct connection to 12V industrial rails, Li-ion battery packs (1–4S), and legacy 5V/3.3V system supplies. |
| Thermal & current protection | Integrated thermal shutdown and current limit (300–350mA) - prevents damage during overload or PCB layout thermal bottlenecks. |
| Soft-start behavior | Controlled turn-on reduces inrush current - minimizes required input capacitance and avoids brownout on shared supply rails. |
| High PSRR bandwidth | 40dB rejection at 1MHz - attenuates high-frequency switching noise from buck converters feeding the LDO input. |
Applications
| Motor Control Power Supply | Industrial Sensor Node |
|---|---|
|
Use Scenario: Powers gate drivers and position-sensing ADCs in BLDC motor drives operating from 12V bus with variable load transients. IC Role / Device Role / Timing Role: Primary 5V rail regulator supplying isolated gate driver bias and precision analog front-end. Use Value: 250mA capability and 70dB PSRR suppress noise coupling into current-sense amplifiers, improving torque control resolution. |
Use Scenario: Powers MEMS accelerometers, temperature sensors, and BLE radio in battery-operated predictive maintenance nodes. IC Role / Device Role / Timing Role: Low-noise, low-IQ 5V source enabling multi-year battery life and sub-mV signal integrity. Use Value: 30µVRMS noise and 69µA quiescent current ensure sensor ADC ENOB remains ≥14 bits while extending shelf life. |
| Active Antenna mMIMO System | Land Mobile Radio (LMR) Front-End |
|
Use Scenario: Supplies local 5V bias to phased-array RF beamforming ICs in 5G base station active antennas. IC Role / Device Role / Timing Role: Point-of-load regulator adjacent to RF ICs, minimizing trace inductance and EMI coupling. Use Value: Stability with 2.2µF ceramic caps allows compact layout; 125°C rating supports operation inside sealed antenna enclosures. |
Use Scenario: Regulates 5V supply for RF power amplifier bias and digital baseband in ruggedized handheld radios. IC Role / Device Role / Timing Role: Main system LDO providing clean 5V to PA driver stages and microcontroller peripherals. Use Value: 225mV dropout ensures regulation down to 5.225V input - critical during battery sag under transmit burst conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSS721AIDR | Fixed 5.0V output, 250mA, ±2% accuracy, 65µA IQ, no BYPASS pin, 40dB PSRR @1kHz | Lacks low-noise BYPASS path; lower PSRR limits use in high-precision analog chains | Select when cost sensitivity outweighs noise performance and BYPASS functionality is unnecessary |
| TPS7A2050PDBVR | Fixed 5.0V, 300mA, ±1% accuracy, 6.5µA IQ, 30µVRMS noise (with 10nF), 70dB PSRR @1kHz, same SOT-23-5 package | Lower IQ and identical noise/PSRR specs; higher max current but tighter accuracy tolerance | Preferred for ultra-low-power designs where <10µA standby current is mandatory and 5.0V ±1% is acceptable |
Compared with TSS721AIDR, LP2992ILD-5.0 delivers superior noise suppression and PSRR via its dedicated BYPASS pin; versus TPS7A2050PDBVR, it trades slightly higher quiescent current for proven thermal robustness across –40°C to +125°C and broader input voltage support (up to 16V).
Availability
LP2992ILD-5.0 is available at Aetrix Electronics and suitable for motor control boards, industrial sensor nodes, active antenna mMIMO systems, and land mobile radio front-ends requiring stable component supply, long-term manufacturability, and guaranteed parametric compliance.
Supply support for LP2992ILD-5.0 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 and embedded processing technologies, with decades of expertise in power management IC design and high-reliability manufacturing.
The LP2992 series belongs to TI's micropower LDO portfolio, engineered specifically for noise-critical, space-constrained applications in industrial automation, communications infrastructure, and automotive subsystems where ultra-low dropout and high PSRR are essential.
FAQ
What is the maximum input voltage rating for LP2992ILD-5.0?
The LP2992ILD-5.0 supports a continuous input voltage range of –0.3 V to 16 V for the new chip revision. Absolute maximum rating is 18 V, but operation above 16 V is not recommended for sustained use. This wide input range allows direct integration with 12 V industrial buses and multi-cell battery sources without pre-regulation.
Does LP2992ILD-5.0 require an external bypass capacitor?
Yes - LP2992ILD-5.0 requires a 10 nF ceramic capacitor between the BYPASS pin and GND to achieve its specified 30 µVRMS output noise performance. Omitting this capacitor increases output noise significantly and degrades PSRR at higher frequencies. The capacitor must be placed close to the BYPASS pin with short traces.
Can LP2992ILD-5.0 operate stably with a 1 µF output capacitor?
No - LP2992ILD-5.0 requires a minimum 2.2 µF ceramic output capacitor for guaranteed stability across temperature and load. While the datasheet notes "nominal output capacitance must be greater than 1 µF", derating to 50% means effective capacitance must remain ≥1 µF; 2.2 µF ensures margin under worst-case voltage/temperature conditions.
What is the shutdown current of LP2992ILD-5.0?
The shutdown current of LP2992ILD-5.0 is 1.12 µA (typical) at 25°C and 2.75 µA (max) over –40°C to +125°C, measured with ON/OFF pin driven low and VIN = 16 V. This ultra-low disable current makes it suitable for battery-backed systems where leakage must be minimized during sleep modes.
Is LP2992ILD-5.0 pin-compatible with other SOT-23-5 LDOs?
LP2992ILD-5.0 uses the standard DBV (SOT-23-5) pinout: Pin 1 = IN, Pin 2 = GND, Pin 3 = ON/OFF, Pin 4 = BYPASS, Pin 5 = OUT. While footprint-compatible with many SOT-23-5 regulators, functional pin mapping differs - especially the dedicated BYPASS pin - so direct substitution requires circuit validation and layout review.
LP2992ILD-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.85V @ 250mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- 4 mA
- PSRR:
- 45dB (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:
- 6-WSON (2.92x3.29)
LP2992ILD-5.0 FAQ
1.How can I place an order for LP2992ILD-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2992ILD-5.0 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 LP2992ILD-5.0 reliable?
The price and inventory of LP2992ILD-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2992ILD-5.0 is usually 5 days.
3.What payment methods are accepted for LP2992ILD-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2992ILD-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2992ILD-5.0?
LP2992ILD-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2992ILD-5.0 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 LP2992ILD-5.0?
For technical support, including LP2992ILD-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2992ILD-5.0 requirements.
6.How does Aetrix verify that LP2992ILD-5.0 is sourced from the original manufacturer or authorized distributors?
All LP2992ILD-5.0 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 LP2992ILD-5.0 meets industry standards.
7.What is the process for return or replacement of LP2992ILD-5.0?
All LP2992ILD-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LP2992ILD-5.0, 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 LP2992ILD-5.0 part is unused and in its original packaging.
Return procedure for LP2992ILD-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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