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Texas Instruments LP2986ILDX-3.3/NOPB
- Part No.:
- LP2986ILDX-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
LP2986ILDX-3.3/NOPB.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
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Product details
Overview
LP2986ILDX-3.3/NOPB from Texas Instruments is a micropower, 200-mA ultra-low-dropout linear voltage regulator with fixed 3.3 V output, 0.5% initial accuracy (A-grade), 180 mV dropout at 200 mA, <1 µA shutdown quiescent current, and integrated ERROR flag for output undervoltage detection. It serves as a precision power supply in battery-powered portable electronics requiring stable low-noise 3.3 V rails.
For engineers reviewing the LP2986ILDX-3.3/NOPB datasheet, LP2986ILDX-3.3/NOPB pinout, LP2986ILDX-3.3/NOPB application, or LP2986ILDX-3.3/NOPB equivalent, key selection considerations include dropout performance at full load, ground pin current vs. load, thermal resistance of the SOIC-8 package, ERROR comparator threshold hysteresis, and compatibility with 4.7 µF ceramic output capacitors.
Technical Context
The LP2986ILDX-3.3/NOPB uses a vertically integrated PNP (VIP) bipolar process to achieve ultra-low dropout and high PSRR (65 dB at 1 kHz). Its internal 1.23 V reference enables precise 3.3 V regulation via factory-trimmed resistive divider, with remote sensing capability through SENSE pin connection.
It integrates active protection including thermal shutdown, current limiting (400 mA peak), and an open-collector ERROR flag that asserts low when output drops >5% below nominal. Shutdown is logic-compatible (active-high), with defined turn-on/turn-off thresholds and minimum slew rate requirement (40 mV/µs) to prevent metastability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±0.5% at 25°C (A-grade); ±1.7% over −40°C to +125°C - ensures stable logic-level supply for 3.3 V microcontrollers and interfaces. |
| Dropout Voltage | 180 mV typical at 200 mA load - enables operation from 3.48 V input, critical for single-cell Li-ion or 3.6 V battery systems. |
| Quiescent Current | 1 mA typical at 200 mA load; <1 µA in shutdown - minimizes battery drain during sleep mode in portable devices. |
| Ground Pin Current | 1 mA typical at 200 mA load - low and stable, reducing system power loss and simplifying thermal design. |
| PSRR | 65 dB at 1 kHz - suppresses ripple from noisy DC-DC pre-regulators or shared power rails. |
| Output Noise | 160 µVRMS (300 Hz–50 kHz) - suitable for noise-sensitive analog circuits like ADC references or RF bias rails. |
| Operating Temp | −40°C to +125°C junction temperature - qualified for automotive under-hood and industrial embedded environments. |
Pinout & Package
LP2986ILDX-3.3/NOPB is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with standard gull-wing leads and no exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: GROUND | Power return path | Common reference for all internal circuitry; must be connected to low-impedance system ground plane. |
| 2: FEEDBACK | Regulation error sense input | Tied internally to TAP for fixed 3.3 V mode; connects to external resistor divider for adjustable output. |
| 3: TAP | Internal divider mid-point | Connected to FEEDBACK to enable factory-set 3.3 V output; unused in adjustable configuration. |
| 4: IN | Unregulated input supply | Accepts 2.1 V to 16 V; requires ≥2.2 µF input capacitor placed within 0.5 inch of pin. |
| 5: OUT | Regulated output | Delivers up to 200 mA at 3.3 V; requires ≥4.7 µF ceramic output capacitor for stability. |
| 6: SENSE | Remote output voltage sense | Tied to OUT for local regulation; enables Kelvin sensing to compensate PCB trace IR drop. |
| 7: ERROR | Open-collector fault indicator | Asserts low when VOUT falls >5% below nominal; requires external pull-up to VOUT or another supply ≤16 V. |
| 8: SHUTDOWN | Logic-enable control | Active-high; drives low to enter <1 µA shutdown; requires signal swing >1.4 V (ON) and <0.55 V (OFF) with ≥40 mV/µs slew rate. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 180 mV at full 200 mA load enables use with weak or depleting input sources such as coin cells or aging batteries. |
| 0.5% output accuracy (A-grade) | Guaranteed at 25°C - eliminates need for post-regulation trimming in precision 3.3 V applications like data converters. |
| Integrated ERROR flag | Open-collector comparator with 5% undervoltage threshold and hysteresis - provides reliable system-level power monitoring without external supervisor IC. |
| Sleep-mode quiescent current | <1 µA shutdown current - extends battery life in always-on IoT sensors and wearable standby modes. |
| Thermal & current protection | Automatic shutdown on die temperature >150°C or output short-circuit - prevents damage during transient overloads or poor heatsinking. |
Applications
| Cellular Phone Power Management | Palmtop/Laptop Core Logic Supply |
|---|---|
|
Use Scenario: Providing clean, regulated 3.3 V to baseband processors and memory during dynamic load transients and battery voltage sag. IC Role / Device Role / Timing Role: Primary LDO for core logic rail, delivering up to 200 mA with fast line/load transient response and <1 µA shutdown during deep sleep. Use Value: Maintains processor functionality down to 3.48 V input (180 mV dropout), while ERROR flag triggers system reset before brownout-induced corruption occurs. |
Use Scenario: Supplying stable 3.3 V to USB controllers, touch-screen interfaces, and low-power peripherals in clamshell-form factor devices. IC Role / Device Role / Timing Role: Secondary LDO with remote SENSE capability to compensate for PCB trace resistance between regulator and load. Use Value: Ensures ±0.5% output accuracy at point-of-load despite 100 mΩ trace resistance, eliminating need for layout-sensitive feedback routing. |
| Camcorder Image Sensor Bias | Precision Portable Instrument Reference |
|
Use Scenario: Powering CMOS image sensor analog front-end and ADC reference in handheld video recorders. IC Role / Device Role / Timing Role: Low-noise 3.3 V source with 160 µVRMS output noise and 65 dB PSRR - directly referenced by 12-bit ADCs. Use Value: Reduces quantization noise floor by >1 LSB compared to standard LDOs, improving dynamic range in low-light capture. |
Use Scenario: Serving as a 3.3 V precision voltage reference for handheld multimeters and portable oscilloscopes. IC Role / Device Role / Timing Role: High-accuracy, low-drift regulator used as a stable excitation source for ratiometric measurements. Use Value: 20 ppm/°C temperature coefficient and <0.01%/V line regulation minimize measurement drift across operating temperature and input voltage ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDQNR | CMOS-based, 200 mA, 220 mV dropout at 200 mA, 25 µA quiescent current (active), no ERROR flag. | Lacks integrated fault reporting; better suited for cost-sensitive, non-safety-critical consumer apps where shutdown current is less critical. | Choose TLV70733PDQNR for lower BOM count in designs not requiring undervoltage supervision. |
| TPS7A2033PDBVR | CMOS-based, 300 mA, 175 mV dropout at 300 mA, 6.5 µA quiescent current (active), no ERROR flag, smaller SOT-23-5 package. | Higher output current but no built-in ERROR function; requires external supervisor for fault detection. | Choose TPS7A2033PDBVR when higher current headroom and space savings outweigh need for integrated fault signaling. |
Compared with TLV70733PDQNR and TPS7A2033PDBVR, LP2986ILDX-3.3/NOPB uniquely combines sub-1 µA shutdown current, integrated ERROR flag, and bipolar-process ultra-low dropout - making it optimal for battery-constrained systems requiring autonomous power health monitoring without added components.
Availability
LP2986ILDX-3.3/NOPB is available at Aetrix Electronics and suitable for cellular phones, palmtop computers, camcorders, and precision portable instruments requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LP2986ILDX-3.3/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 digital signal solutions for industrial, automotive, and consumer markets.
The LP2986ILDX-3.3/NOPB belongs to TI's micropower LDO family engineered for battery-powered portable electronics, emphasizing ultra-low dropout, precision output, and integrated supervision features for reliable operation in energy-constrained environments.
FAQ
What is the maximum input voltage rating for LP2986ILDX-3.3/NOPB?
The LP2986ILDX-3.3/NOPB supports a maximum input voltage of 16 V under absolute maximum ratings. For continuous operation, the recommended input range is 2.1 V to 16 V. Exceeding 16 V risks permanent damage, and operation below 2.1 V may cause dropout or regulation failure. Always verify input transient margins in your system design.
Does LP2986ILDX-3.3/NOPB require external capacitors, and what values are recommended?
Yes, LP2986ILDX-3.3/NOPB requires both input and output capacitors for stability. A minimum 2.2 µF ceramic or tantalum capacitor is required on the IN pin, and a minimum 4.7 µF ceramic capacitor is required on the OUT pin. These must be placed within 0.5 inch of their respective pins and connected to a clean analog ground. Larger values improve transient response without compromising stability.
How does the ERROR pin on LP2986ILDX-3.3/NOPB function, and what external components are needed?
The ERROR pin on LP2986ILDX-3.3/NOPB is an open-collector output that pulls low when VOUT drops >5% below nominal. It requires an external pull-up resistor to VOUT or another supply ≤16 V. The pin can sink up to 300 µA. If unused, it may be left floating. No pull-down is required, and no additional logic is needed for basic undervoltage detection.
Can LP2986ILDX-3.3/NOPB be used in adjustable-output configurations?
No - LP2986ILDX-3.3/NOPB is a fixed-output variant configured at manufacture for 3.3 V. While the base LP2986 family supports adjustable output via external resistors on FEEDBACK, the ILDX-3.3/NOPB suffix denotes factory-trimmed internal divider for 3.3 V only. To implement adjustable output, select the LP2986IMX-ADJ/NOPB or similar adjustable version.
What thermal performance can be expected from LP2986ILDX-3.3/NOPB in SOIC-8 package?
In its SOIC-8 (D) package, LP2986ILDX-3.3/NOPB has a junction-to-ambient thermal resistance (RθJA) of 114.4°C/W on a high-K test board. With 200 mA load and 180 mV dropout, power dissipation is ~36 mW, resulting in ~4.1°C junction rise above ambient. For high-temperature or high-power applications, ensure adequate copper area and consider derating per TI's thermal guidelines.
LP2986ILDX-3.3/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- 3.7 mA
- PSRR:
- 65dB (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:
- 8-WSON (4x4)
LP2986ILDX-3.3/NOPB FAQ
1.How can I place an order for LP2986ILDX-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2986ILDX-3.3/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 LP2986ILDX-3.3/NOPB reliable?
The price and inventory of LP2986ILDX-3.3/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2986ILDX-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LP2986ILDX-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2986ILDX-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2986ILDX-3.3/NOPB?
LP2986ILDX-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2986ILDX-3.3/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 LP2986ILDX-3.3/NOPB?
For technical support, including LP2986ILDX-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2986ILDX-3.3/NOPB requirements.
6.How does Aetrix verify that LP2986ILDX-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2986ILDX-3.3/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 LP2986ILDX-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LP2986ILDX-3.3/NOPB?
All LP2986ILDX-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2986ILDX-3.3/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 LP2986ILDX-3.3/NOPB part is unused and in its original packaging.
Return procedure for LP2986ILDX-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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