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Texas Instruments LP2987IM-5.0/NOPB
- Part No.:
- LP2987IM-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LP2987IM-5.0/NOPB.pdf
- Description:
- IC REG LINEAR 5V 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
LP2987IM-5.0/NOPB from Texas Instruments is a fixed-output, 200 mA ultra-low-dropout linear voltage regulator with programmable power-on reset delay, 5.0 V output, 0.5% initial accuracy (A-grade), 180 mV dropout at 200 mA, and SOIC-8 package. It delivers precision bias for noise-sensitive analog circuitry in portable battery-powered systems requiring stable low-noise 5 V rails.
For engineers reviewing the LP2987IM-5.0/NOPB datasheet, LP2987IM-5.0/NOPB pinout, LP2987IM-5.0/NOPB application, or LP2987IM-5.0/NOPB equivalent, key selection criteria include dropout voltage under load, reset delay configurability via external capacitor, shutdown quiescent current (<2 µA), ground pin current behavior, and thermal performance in SOIC-8 (θJ−A = 160°C/W).
Technical Context
The LP2987IM-5.0/NOPB uses a vertically integrated PNP pass transistor to achieve ultra-low dropout and low ground current across load range. Its error flag (open-collector) asserts low when output drops >5% below nominal and doubles as a power-on reset signal when paired with an external capacitor on the DELAY pin.
It integrates internal overtemperature and overcurrent protection, supports input voltages from 2.1 V to 16 V, and operates across −40°C to +125°C junction temperature. The SHUTDOWN pin enables sleep mode with <2 µA quiescent current when pulled low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±0.5% (A-grade) at 25°C; ensures stable reference for ADCs, sensors, and logic I/O without external feedback. |
| Dropout Voltage | 180 mV @ 200 mA (typical); enables regulation from 5.18 V input - critical for single-cell Li-ion or multi-cell alkaline systems. |
| Quiescent Current | <2 µA in shutdown; reduces standby power loss in always-on subsystems like real-time clocks or wake-up monitors. |
| Ground Pin Current | 1 mA @ 200 mA load (typical); low, load-proportional GND current improves efficiency vs. older LDOs with fixed bias current. |
| Power-On Reset Delay | Programmable via single external capacitor on DELAY pin; enables system-level sequencing without additional supervisor ICs. |
| Operating Temp Range | −40°C to +125°C junction; qualified for automotive cabin, industrial control, and extended-temperature embedded applications. |
| Input Voltage Range | 2.1 V to 16 V operating; supports wide-input legacy and multi-rail systems while surviving transient surges up to 16 V. |
Pinout & Package
LP2987IM-5.0/NOPB is housed in an 8-pin SOIC (D) surface-mount package (Package Drawing D0008A), with θJ−A = 160°C/W and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - BYPASS | Reference bypass node | Not used on LP2987 (only LP2988); leave unconnected or tie to ground per layout best practice. |
| 2 - DELAY | Reset timing control | Sinks 2.2 µA current to charge external capacitor; sets power-on reset timeout (TDELAY = CDLY × 5.59×10⁵). |
| 3 - GROUND | Analog ground reference | Return path for internal bandgap, error amplifier, and pass transistor; must connect to clean analog ground plane. |
| 4 - INPUT | Unregulated input supply | Accepts 2.1–16 V; requires ≥2.2 µF ceramic/tantalum input capacitor placed ≤0.5″ from pin. |
| 5 - SENSE | Output voltage feedback | Monitors regulated output via internal resistive divider; connects directly to VOUT for highest accuracy. |
| 6 - OUTPUT | Regulated 5.0 V output | Delivers up to 200 mA continuous; requires ≥4.7 µF output capacitor with ESR in stable region per TI curves. |
| 7 - SHUTDOWN | Enable/disable control | Drives low to enter <2 µA sleep mode; requires logic-high ≥1.4 V to enable; slew rate ≥40 mV/µs required. |
| 8 - ERROR | Open-collector reset flag | Asserts low when VOUT falls >5%; requires external pull-up resistor to generate active-high reset signal. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 180 mV @ 200 mA enables operation from marginal input sources - e.g., aging batteries or post-dropper supplies. |
| Programmable POR delay | Single external capacitor on DELAY pin replaces discrete RC timers and supervisor ICs, reducing BOM count and board area. |
| 0.5% output accuracy (A-grade) | Guaranteed initial tolerance eliminates need for post-production calibration in precision analog signal chains. |
| Thermal/overcurrent protection | Auto-recovering shutdown prevents damage during sustained overload or high ambient temperature conditions. |
| Low ground pin current | 1 mA @ 200 mA load (vs. >5 mA typical in legacy LDOs) improves full-load efficiency and reduces PCB heating. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Powering low-power analog front-ends (AFE) in handheld glucose meters and pulse oximeters using coin-cell or single Li-ion batteries. IC Role / Device Role / Timing Role: Provides clean, accurate 5.0 V rail for precision ADCs, op-amps, and sensor excitation circuits; POR delay synchronizes MCU boot with analog settling. Use Value: Ultra-low dropout extends battery life by enabling regulation down to 5.18 V input; 0.5% accuracy ensures measurement repeatability without software correction. |
Use Scenario: Supplying isolated 5 V logic and analog interfaces in DIN-rail mounted programmable logic controller (PLC) modules. IC Role / Device Role / Timing Role: Regulates 5 V for digital I/O buffers and analog input conditioning stages; ERROR pin drives system watchdog reset during brownout events. Use Value: −40°C to +125°C operation ensures reliability in uncontrolled cabinet environments; SOIC-8 package supports automated optical inspection and reflow compatibility. |
| Camcorder Image Signal Processors | Automotive Infotainment USB Hubs |
|
Use Scenario: Delivering low-noise 5 V to CMOS image sensor interfaces and ISP cores in consumer camcorders with variable battery voltage. IC Role / Device Role / Timing Role: Supplies regulated 5 V to high-speed parallel video interfaces; SHUTDOWN pin enables dynamic power gating during standby recording modes. Use Value: Low ground current minimizes IR drop in shared PCB planes; programmable POR ensures clean boot after hot-swap battery insertion. |
Use Scenario: Providing auxiliary 5 V power to USB 2.0 hub controllers in vehicle infotainment head units powered from 12 V battery with load dump transients. IC Role / Device Role / Timing Role: Acts as secondary LDO after primary DC/DC converter; ERROR pin triggers system reset if main 5 V rail collapses during cold-crank. Use Value: 16 V absolute max input withstands automotive load dump spikes; thermal shutdown protects against enclosure overheating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP2987AIMX-5.0/NOPB | Same electrical specs; WSON-8 (NGN) package, 3× smaller footprint, higher θJ−A (PCB-dependent), MSL Level-3. | Better suited for space-constrained designs where thermal management via PCB copper is feasible. | Select when board area is critical and thermal design allows for enhanced heatsinking on WSON pad. |
| TLV70750PDQNR | Lower IQ (25 µA active, 0.5 µA shutdown), 300 mA output, but only 1% accuracy and no POR delay function. | Lacks programmable reset delay and tighter accuracy; suitable for cost-sensitive, non-precision applications. | Choose only if POR delay and 0.5% accuracy are not required, and lower quiescent current is prioritized over reset functionality. |
Compared with LP2987AIMX-5.0/NOPB, the LP2987IM-5.0/NOPB offers easier thermal validation and standard SOIC handling, while TLV70750PDQNR trades away reset capability and accuracy for lower IQ and higher current - making LP2987IM-5.0/NOPB optimal for precision, sequenced, and thermally predictable 5 V regulation.
Availability
LP2987IM-5.0/NOPB is available at Aetrix Electronics and suitable for portable medical devices, industrial PLCs, camcorder ISPs, and automotive infotainment USB hubs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LP2987IM-5.0/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 connectivity technologies, with decades of LDO design heritage and automotive-grade qualification expertise.
The LP2987 family was engineered for micropower, ultra-low-dropout regulation in battery-critical and noise-sensitive applications - emphasizing precision, reset intelligence, and robust thermal behavior in compact packages.
FAQ
What is the maximum input voltage rating for LP2987IM-5.0/NOPB?
The LP2987IM-5.0/NOPB has an absolute maximum input voltage of +16 V and a recommended operating range of 2.1 V to +16 V. This allows it to interface directly with unregulated 12 V automotive or industrial supplies while surviving transient surges - but sustained operation above 16 V risks permanent damage per Absolute Maximum Ratings.
Does LP2987IM-5.0/NOPB include a bypass pin for noise reduction?
No. The BYPASS pin is exclusive to the LP2988 variant (low-noise version). LP2987IM-5.0/NOPB does not use the BYPASS pin; it should be left unconnected or tied to ground. For ultra-low-noise applications, TI recommends selecting LP2988AIM-5.0/NOPB instead.
How is the power-on reset delay configured on LP2987IM-5.0/NOPB?
The LP2987IM-5.0/NOPB implements programmable power-on reset delay using an external capacitor connected to the DELAY pin. A 2.2 µA internal current source charges this capacitor; when its voltage reaches 1.23 V, the ERROR pin releases high. Delay time is calculated as TDELAY = CDLY × 5.59×10⁵ (e.g., 100 nF → ~56 ms).
What is the thermal resistance (θJ−A) of the SOIC-8 package used by LP2987IM-5.0/NOPB?
The SOIC-8 (D) package for LP2987IM-5.0/NOPB has a specified junction-to-ambient thermal resistance (θJ−A) of 160°C/W under standard JEDEC test conditions. Actual thermal performance depends on PCB copper area, layer count, and thermal vias - so layout optimization is essential for high-current or high-ambient applications.
Can LP2987IM-5.0/NOPB be used in automotive under-hood applications?
Yes. LP2987IM-5.0/NOPB is rated for −40°C to +125°C junction temperature and features built-in overtemperature and overcurrent protection. Its 16 V absolute max input withstands automotive load dump transients, and SOIC-8 packaging supports AEC-Q200-compatible board assembly - making it suitable for cabin and controlled under-hood subsystems.
LP2987IM-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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):
- 0.35V @ 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
LP2987IM-5.0/NOPB FAQ
1.How can I place an order for LP2987IM-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2987IM-5.0/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 LP2987IM-5.0/NOPB reliable?
The price and inventory of LP2987IM-5.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2987IM-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LP2987IM-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2987IM-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2987IM-5.0/NOPB?
LP2987IM-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2987IM-5.0/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 LP2987IM-5.0/NOPB?
For technical support, including LP2987IM-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2987IM-5.0/NOPB requirements.
6.How does Aetrix verify that LP2987IM-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2987IM-5.0/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 LP2987IM-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LP2987IM-5.0/NOPB?
All LP2987IM-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2987IM-5.0/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 LP2987IM-5.0/NOPB part is unused and in its original packaging.
Return procedure for LP2987IM-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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