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Texas Instruments LP2986AIMX-3.0
- Part No.:
- LP2986AIMX-3.0
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LP2986AIMX-3.0.pdf
- Description:
- IC REG LINEAR 3V 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,249
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Product details
Overview
LP2986AIMX-3.0 from Texas Instruments is a micropower, ultra-low-dropout linear voltage regulator delivering a precise 3.0 V output at up to 200 mA. It features 0.5% output voltage accuracy (A grade), 180 mV typical dropout at full load, <1 µA quiescent current in shutdown, and integrated error flag for output supervision. It is used in battery-powered portable electronics requiring stable low-noise supply under variable input and load conditions.
For engineers reviewing the LP2986AIMX-3.0 datasheet, LP2986AIMX-3.0 pinout, LP2986AIMX-3.0 application, or LP2986AIMX-3.0 equivalent, key selection criteria include fixed 3.0 V output accuracy, thermal/overcurrent protection, ERROR flag behavior, SOIC-8 package compatibility, and dropout performance at 200 mA across −40°C to +125°C.
Technical Context
The LP2986AIMX-3.0 uses a vertically integrated PNP (VIP) bipolar process to achieve ultra-low dropout and high precision. Its internal 1.23 V reference enables 3.0 V output via factory-trimmed resistive divider, with feedback loop stability maintained by remote sensing (SENSE pin tied to OUT) and optional lead compensation when using external dividers.
It operates across 2.1 V to 16 V input range and supports two functional modes: fixed-output (via TAP–FEEDBACK and OUT–SENSE connection) and adjustable-output (via external resistor divider). Shutdown control is active-high, and the open-collector ERROR flag asserts low when output falls >5% below nominal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.0 V ±0.5% (A grade) at 25°C; ±0.84% over −40°C to +125°C - ensures stable logic supply for 3.3 V–3.0 V I/O domains. |
| Max output current | 200 mA continuous - sufficient for microcontrollers, sensors, and RF front-ends in portable systems. |
| Dropout voltage | 180 mV typical at 200 mA - enables regulation from 3.18 V input, critical for single-cell Li-ion or 3.3 V rail derivation. |
| Quiescent current | 1 mA typical at 200 mA load; <1 µA in shutdown - minimizes battery drain during sleep mode. |
| Ground pin current | 1 mA typical at 200 mA load - low bias current improves efficiency vs. older LDOs. |
| Error flag threshold | Asserts low when VOUT drops >5% below 3.0 V - provides system-level power-good monitoring without external supervisor IC. |
| Input voltage range | 2.1 V to 16 V - supports wide-input applications including automotive accessory rails and multi-cell battery packs. |
| Junction temperature | −40°C to +125°C - qualified for industrial and extended-temperature embedded environments. |
Pinout & Package
LP2986AIMX-3.0 is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with exposed pad not present (SOIC variant). Pin functions are identical across SOIC, VSSOP, and WSON packages per TI documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GROUND (Pin 1) | Power return path | Common reference for all internal circuitry; must be connected to low-impedance PCB ground plane. |
| FEEDBACK (Pin 2) | Voltage sense input | Tied to TAP for fixed 3.0 V operation; connects to external divider for adjustable output. |
| TAP (Pin 3) | Internal divider mid-point | Provides access to internal 1.23 V reference node; tied to FEEDBACK to enable fixed-output mode. |
| IN (Pin 4) | Unregulated input supply | Accepts 2.1–16 V; requires ≥2.2 µF input capacitor placed within 12.7 mm of pin. |
| OUT (Pin 5) | Regulated output | Delivers 3.0 V at up to 200 mA; requires ≥4.7 µF ceramic output capacitor with stable ESR. |
| SENSE (Pin 6) | Remote output sensing | Tied to OUT for local regulation; enables Kelvin sensing to compensate for PCB trace IR drop. |
| ERROR (Pin 7) | Open-collector fault indicator | Sinks up to 300 µA when VOUT < 2.85 V; requires external pull-up to VOUT or another supply ≤16 V. |
| SHUTDOWN (Pin 8) | Enable control input | Active-high; drives low to enter <1 µA shutdown; requires signal slew rate ≥40 mV/µs to avoid metastability. |
Key Features
| Feature | Design Value |
|---|---|
| 0.5% output accuracy (A grade) | Ensures reliable operation of 3.0 V logic interfaces without margining or post-regulation trimming. |
| Ultra-low dropout (180 mV @ 200 mA) | Enables use with weak or depleting input sources such as single Li-ion cells down to 3.18 V. |
| Integrated ERROR flag with 5% hysteresis | Eliminates need for external reset supervisor IC in space-constrained portable designs. |
| Thermal and overcurrent protection | Prevents device damage during overload or poor heatsinking; auto-recovery on cooldown. |
| 1.23 V precision internal reference | Supports accurate adjustable outputs from 2.1 V to 16 V using external resistor divider. |
| −40°C to +125°C operating range | Validated for deployment in industrial control, automotive infotainment, and outdoor IoT nodes. |
Applications
| Cellular Phone Power Management | Palmtop Computer Core Supply |
|---|---|
Use Scenario: Regulating main 3.0 V rail for baseband processor, memory, and display interface in GSM/3G handsets with Li-ion battery input. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage regulator providing stable 3.0 V supply with fast transient response to burst-mode RF loads. Use Value: 160 µVRMS output noise and 65 dB PSRR at 1 kHz prevent RF coupling into sensitive analog sections. | Use Scenario: Supplying 3.0 V to ARM-based application processor and NAND flash in handheld PDAs with dual-cell alkaline input. IC Role / Device Role / Timing Role: Fixed-output LDO delivering regulated core voltage while supporting dynamic voltage scaling via SHUTDOWN control. Use Value: <1 µA shutdown current extends standby battery life to >30 days without compromising wake-up latency. |
| Digital Camcorder Sensor Bias | Industrial Camera Module Interface |
Use Scenario: Powering CMOS image sensor analog front-end and ADC reference in compact camcorders using 3.7 V Li-Po battery. IC Role / Device Role / Timing Role: Precision 3.0 V reference-grade regulator with remote SENSE capability to reject PCB trace resistance effects. Use Value: 20 ppm/°C output temperature coefficient maintains ADC linearity across −10°C to +60°C ambient. | Use Scenario: Providing isolated 3.0 V supply for FPGA I/O banks and camera interface logic in factory automation vision systems. IC Role / Device Role / Timing Role: Industrial-grade LDO with overtemperature protection and −40°C to +125°C junction rating for harsh enclosure environments. Use Value: Integrated thermal shutdown prevents field failure during prolonged high-temperature operation near motor drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP2985AIMX-3.0 | 150 mA max output; same 3.0 V ±0.5%, 160 mV dropout, and SOIC-8 package. | Limited to lower-current peripherals (e.g., sensors, EEPROMs); insufficient for 200 mA MCU cores. | Select LP2985AIMX-3.0 only if load current remains ≤150 mA and board footprint reuse is critical. |
| TLV70730PDQNR | 200 mA, 3.0 V ±1%, 220 mV dropout, 25 µA quiescent current, X2SON-4 package (1.0 mm × 1.0 mm). | No ERROR flag or SENSE pin; smaller footprint but no remote sensing or fault reporting. | Choose TLV70730PDQNR for ultra-compact, cost-sensitive designs where supervision and precision are secondary. |
Compared with LP2985AIMX-3.0, LP2986AIMX-3.0 delivers 33% higher current capacity and includes ERROR flag functionality; compared with TLV70730PDQNR, it trades package size for supervisory features, remote sensing, and tighter 0.5% initial accuracy essential for metrology-grade analog supplies.
Availability
LP2986AIMX-3.0 is available at Aetrix Electronics and suitable for cellular phones, palmtop computers, digital camcorders, and industrial camera modules requiring stable component supply with long-term manufacturability and consistent parametric performance.
Supply support for LP2986AIMX-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 company specializing in analog, embedded processing, and connectivity technologies, with leadership in power management ICs for industrial, automotive, and portable markets.
The LP2986AIMX-3.0 belongs to TI's LP2986 family of micropower ultra-low-dropout regulators, designed specifically for battery-powered portable electronics needing high accuracy, low quiescent current, and integrated power supervision.
FAQ
What is the output voltage tolerance of the LP2986AIMX-3.0 over temperature?
The LP2986AIMX-3.0 guarantees 3.0 V output with ±0.5% accuracy at 25°C (A grade). Over the full −40°C to +125°C junction temperature range, total variation is ±0.84%, derived from 20 ppm/°C temperature coefficient and initial tolerance. This is confirmed in Section 6.5 Electrical Characteristics of the SNVS137I datasheet.
Does the LP2986AIMX-3.0 require an external capacitor on the ERROR pin?
No, the LP2986AIMX-3.0 does not require an external capacitor on the ERROR pin. The ERROR pin is an open-collector output that sinks up to 300 µA when asserted low; it requires only an external pull-up resistor to VOUT or another supply (≤16 V). Capacitors are unnecessary and not recommended unless filtering specific noise sources in the system-level design.
Can the LP2986AIMX-3.0 be used with a 2.5 V input supply?
No, the LP2986AIMX-3.0 cannot regulate from a 2.5 V input. Its minimum recommended input voltage is 2.1 V above the output voltage - i.e., ≥5.1 V for 3.0 V output - due to its PNP-based architecture and dropout characteristics. At 2.5 V input, the device will be in dropout or unregulated state and cannot sustain 3.0 V output.
How is the SHUTDOWN pin of the LP2986AIMX-3.0 driven correctly?
The SHUTDOWN pin of the LP2986AIMX-3.0 must be driven with a logic signal having a minimum slew rate of 40 mV/µs and voltage thresholds exceeding VH = 1.4 V (turn-on) and falling below VL = 0.55 V (turn-off). Slow-rising/falling signals between these thresholds cause undefined output states. TI recommends tying SHUTDOWN directly to VIN if unused, or using a clean GPIO with adequate drive strength.
Is the LP2986AIMX-3.0 pin-compatible with other LP2986 variants like LP2986AIMX-3.3?
Yes, the LP2986AIMX-3.0 is pin-compatible with all LP2986 fixed-output variants (e.g., LP2986AIMX-3.3, LP2986AIMX-5.0) in the same SOIC-8 package. Pin configuration, electrical behavior, and thermal characteristics are identical; only the internal resistor divider is trimmed for different output voltages. No PCB layout change is required when substituting between fixed-output versions.
LP2986AIMX-3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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):
- 0.35V @ 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-SOIC
LP2986AIMX-3.0 FAQ
1.How can I place an order for LP2986AIMX-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2986AIMX-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 LP2986AIMX-3.0 reliable?
The price and inventory of LP2986AIMX-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 LP2986AIMX-3.0 is usually 5 days.
3.What payment methods are accepted for LP2986AIMX-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2986AIMX-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2986AIMX-3.0?
LP2986AIMX-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2986AIMX-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 LP2986AIMX-3.0?
For technical support, including LP2986AIMX-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2986AIMX-3.0 requirements.
6.How does Aetrix verify that LP2986AIMX-3.0 is sourced from the original manufacturer or authorized distributors?
All LP2986AIMX-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 LP2986AIMX-3.0 meets industry standards.
7.What is the process for return or replacement of LP2986AIMX-3.0?
All LP2986AIMX-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LP2986AIMX-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 LP2986AIMX-3.0 part is unused and in its original packaging.
Return procedure for LP2986AIMX-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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