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Texas Instruments LP2986IMMX-3.3/NOPB
- Part No.:
- LP2986IMMX-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LP2986IMMX-3.3/NOPB.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,416
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Product details
Overview
LP2986IMMX-3.3/NOPB from Texas Instruments is a micropower, ultra-low-dropout linear voltage regulator delivering a precise 3.3 V output at up to 200 mA, with 0.5% initial accuracy (A-grade), 180 mV typical dropout at full load, and <1 µA quiescent current in shutdown - deployed in battery-powered portable electronics requiring stable low-noise supply rails.
For engineers reviewing the LP2986IMMX-3.3/NOPB datasheet, LP2986IMMX-3.3/NOPB pinout, LP2986IMMX-3.3/NOPB application, or LP2986IMMX-3.3/NOPB equivalent, key selection considerations include fixed 3.3 V output accuracy, thermal/overcurrent protection, ERROR flag supervision, shutdown control interface, and SOIC-8 package compatibility with standard PCB layouts.
Technical Context
The LP2986IMMX-3.3/NOPB uses a vertically integrated PNP (VIP) bipolar process to achieve ultra-low dropout (180 mV @ 200 mA) while maintaining high precision and stability across −40°C to +125°C junction temperature. Its internal 1.23 V reference and error amplifier enable tight regulation without external compensation when configured for fixed 3.3 V output via TAP–FEEDBACK and OUT–SENSE pin strapping.
It integrates an open-collector ERROR flag that asserts low when output drops >5% below nominal, plus active-high SHUTDOWN with defined turn-on/turn-off thresholds (VH = 1.4 V, VL = 0.55 V) and ≥40 mV/µs slew-rate requirement - making it suitable for power sequencing and brownout monitoring in compact portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±0.5% (A grade) at 25°C; ±0.7% over −40°C to +125°C - ensures reliable logic-level compliance for 3.3 V microcontrollers and peripherals. |
| Max Output Current | 200 mA continuous - supports moderate-power digital subsystems without external pass devices. |
| Dropout Voltage | 180 mV typical at 200 mA load - enables operation down to VIN = 3.48 V, critical for single-cell Li-ion or 4-cell alkaline applications. |
| Quiescent Current | <1 µA in shutdown; 1–2.1 mA at 200 mA load - minimizes standby drain and improves battery runtime. |
| Ground Pin Current | 1 mA typical at 200 mA - low, stable GND current simplifies current-sense design and reduces PCB heating. |
| Input Voltage Range | 2.1 V to 16 V - accommodates wide input sources including unregulated adapters, multi-cell batteries, and automotive-derived rails. |
| Error Flag Threshold | Asserts low when VOUT falls >5% below nominal - provides deterministic reset signaling for host processors without external supervisors. |
Pinout & Package
LP2986IMMX-3.3/NOPB is housed in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with gull-wing leads and standard JEDEC MS-012AC footprint. Thermal performance is characterized with RθJA = 114.4°C/W on high-K test board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: GROUND | Power return reference | Primary ground connection; must be low-impedance path to system ground plane for regulation stability and noise rejection. |
| 2: FEEDBACK | Regulation sense input | Tied to TAP pin for fixed 3.3 V mode; connects to external divider for adjustable output - sets output voltage via internal 1.23 V reference. |
| 3: TAP | Internal divider mid-point | Output of internal resistive divider; tied to FEEDBACK to select factory-trimmed 3.3 V output without external components. |
| 4: IN | Unregulated input supply | Accepts 2.1–16 V input; requires ≥2.2 µF ceramic capacitor placed within 12.7 mm of pin for stability and transient response. |
| 5: OUT | Regulated output | Delivers 3.3 V at up to 200 mA; requires ≥4.7 µF ceramic output capacitor with appropriate ESR for loop stability. |
| 6: SENSE | Remote output sensing | Tied to OUT pin in fixed-voltage mode to enable remote-sense capability - compensates for PCB trace IR drop in high-accuracy applications. |
| 7: ERROR | Open-collector fault flag | Active-low output asserting when VOUT drops >5%; requires external pull-up to VOUT or another rail ≤16 V; sinks up to 300 µA. |
| 8: SHUTDOWN | Enable/disable control | Active-high logic input; pulled high to enable, low to enter <1 µA shutdown; threshold VH = 1.4 V, VL = 0.55 V; requires ≥40 mV/µs slew rate. |
Key Features
| Feature | Design Value |
|---|---|
| 0.5% output accuracy (A grade) | Ensures 3.3 V remains within 3.283–3.317 V at room temperature - eliminates need for post-regulation trimming in precision analog or MCU supply rails. |
| Ultra-low dropout (180 mV @ 200 mA) | Enables operation from marginal input sources (e.g., 3.48 V minimum), extending usable battery voltage range and reducing heat dissipation vs. higher-dropout regulators. |
| Built-in ERROR flag with 5% threshold | Provides autonomous output supervision without external comparators - simplifies system-level reset architecture and reduces BOM count. |
| Thermal and overcurrent protection | Shuts down output during sustained overload or excessive junction temperature (>150°C typical), preventing device damage and enabling robust field reliability. |
| Fixed 3.3 V configuration (no external resistors) | Reduces component count and layout area by using internal TAP–FEEDBACK and OUT–SENSE strapping - ideal for space-constrained portable designs. |
Applications
| Cellular Phone Power Management | Palmtop Computer Core Supply |
|---|---|
Use Scenario: Regulating main 3.3 V rail for baseband processor, memory, and RF interface in GSM/UMTS handsets with single Li-ion cell input. IC Role / Device Role / Timing Role: Primary LDO supplying clean, low-noise 3.3 V to sensitive analog and digital blocks; ERROR flag triggers PMIC reset on battery sag. Use Value: 180 mV dropout extends usable battery life by ~12 minutes per charge cycle compared to 300 mV-dropout alternatives at 200 mA load. |
Use Scenario: Providing stable 3.3 V core voltage to ARM-based application processor and NAND flash in handheld PDAs. IC Role / Device Role / Timing Role: Fixed-output LDO with shutdown control synchronized to system sleep/wake states; ERROR flag monitors rail integrity during wake-up sequences. Use Value: <1 µA shutdown current reduces standby leakage by >95% vs. non-shutdown LDOs, enabling multi-week idle battery retention. |
| Digital Camcorder Sensor Bias | Portable Medical Monitor Analog Front-End |
Use Scenario: Powering CMOS image sensor analog bias and ADC reference in battery-operated camcorders. IC Role / Device Role / Timing Role: Low-noise (160 µVRMS) 3.3 V source with remote sensing (SENSE tied to OUT) to maintain accuracy across flex-cable voltage drop. Use Value: 20 ppm/°C temperature coefficient limits output drift to <±10 mV over −20°C to +60°C operating range - preserving image sensor linearity. |
Use Scenario: Supplying precision 3.3 V reference and signal-chain bias for ECG/SpO₂ analog front-end in wearable patient monitors. IC Role / Device Role / Timing Role: High-accuracy LDO acting as both power source and secondary voltage reference; ERROR flag alerts firmware of supply degradation before clinical data corruption. Use Value: 0.5% initial tolerance and <0.032%/V line regulation ensure ADC reference stability under varying battery and charger conditions - meeting IEC 60601-1 accuracy requirements. |
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, 300 mA rated, 250 mV dropout @ 300 mA, 2.5 µA quiescent current (active), no ERROR flag. | Lacks built-in supervision; better suited for high-current, low-IQ apps where fault detection is handled externally. | Select TLV70733PDQNR only if higher output current or lower active IQ is prioritized over integrated error monitoring and thermal protection. |
| TPS7A2033PDQNR | CMOS LDO, 300 mA, 170 mV dropout @ 300 mA, 6.5 µA IQ, no ERROR flag, ±1% accuracy (standard grade). | No fault flag or shutdown hysteresis; tighter dropout but looser initial accuracy and no thermal foldback. | Choose TPS7A2033PDQNR for cost-sensitive, high-volume consumer apps where 1% accuracy suffices and external supervision is acceptable. |
Compared with TLV70733PDQNR and TPS7A2033PDQNR, LP2986IMMX-3.3/NOPB uniquely combines A-grade 0.5% accuracy, integrated ERROR flag with 5% threshold, thermal/overcurrent protection, and bipolar VIP process ultra-low dropout - making it the only option among the three qualified for safety-critical portable medical and industrial logging applications requiring autonomous rail supervision.
Availability
LP2986IMMX-3.3/NOPB is available at Aetrix Electronics and suitable for cellular phones, palmtop computers, camcorders, and portable medical monitors requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for LP2986IMMX-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 leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability linear regulators and precision voltage references.
The LP2986IMMX-3.3/NOPB belongs to TI's micropower LDO family designed specifically for battery-powered portable electronics - emphasizing ultra-low dropout, sub-µA shutdown, high accuracy, and integrated supervision for extended runtime and system robustness.
FAQ
What is the output voltage tolerance of LP2986IMMX-3.3/NOPB over temperature?
The LP2986IMMX-3.3/NOPB delivers 3.3 V output with ±0.5% tolerance at 25°C (A grade). Over the full −40°C to +125°C junction temperature range, output voltage remains within ±0.7% of nominal (3.274 V to 3.326 V), verified per TI's Electrical Characteristics table in SNVS137I Rev I. This stability is enabled by its 20 ppm/°C temperature coefficient and precision internal reference.
Does LP2986IMMX-3.3/NOPB require external resistors to set its 3.3 V output?
No - LP2986IMMX-3.3/NOPB is factory-configured for fixed 3.3 V output and requires no external resistors. It achieves this by internally strapping the TAP and FEEDBACK pins and the OUT and SENSE pins, as confirmed in the "Typical Applications" section of the datasheet. External resistors are only needed for adjustable-output variants.
What is the minimum input voltage required for LP2986IMMX-3.3/NOPB to regulate at 200 mA?
The minimum input voltage for LP2986IMMX-3.3/NOPB to maintain regulation at 200 mA is 3.48 V - calculated as 3.3 V + 180 mV typical dropout. The device supports inputs as low as 2.1 V, but below 3.48 V, it enters dropout and output voltage declines linearly with input. This value is specified in the "Dropout Voltage" row of the Electrical Characteristics table.
How does the ERROR pin on LP2986IMMX-3.3/NOPB function, and what external components are needed?
The ERROR pin on LP2986IMMX-3.3/NOPB is an open-collector output that pulls low when VOUT drops >5% below nominal (i.e., below ~3.135 V). It requires an external pull-up resistor to VOUT or another supply ≤16 V. TI specifies it can sink up to 300 µA. If unused, the pin may be left floating - no pull-down or termination is required.
Is LP2986IMMX-3.3/NOPB RoHS-compliant and lead-free?
Yes - LP2986IMMX-3.3/NOPB carries the "/NOPB" suffix, which TI explicitly defines as "No Lead (Pb)-Free", indicating full RoHS compliance and lead-free finish per JEDEC J-STD-609. The SOIC-8 package uses matte tin lead plating and meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life.
LP2986IMMX-3.3/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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):
- 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-VSSOP
LP2986IMMX-3.3/NOPB FAQ
1.How can I place an order for LP2986IMMX-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2986IMMX-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 LP2986IMMX-3.3/NOPB reliable?
The price and inventory of LP2986IMMX-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 LP2986IMMX-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LP2986IMMX-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2986IMMX-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2986IMMX-3.3/NOPB?
LP2986IMMX-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2986IMMX-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 LP2986IMMX-3.3/NOPB?
For technical support, including LP2986IMMX-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2986IMMX-3.3/NOPB requirements.
6.How does Aetrix verify that LP2986IMMX-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2986IMMX-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 LP2986IMMX-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LP2986IMMX-3.3/NOPB?
All LP2986IMMX-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2986IMMX-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 LP2986IMMX-3.3/NOPB part is unused and in its original packaging.
Return procedure for LP2986IMMX-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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