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Texas Instruments LP2988AIMM-3.0/NOPB
- Part No.:
- LP2988AIMM-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LP2988AIMM-3.0/NOPB.pdf
- Description:
- IC REG LINEAR 3V 200MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,652
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Product details
Overview
LP2988AIMM-3.0/NOPB from Texas Instruments is a micropower, 200 mA ultra-low-dropout linear regulator with programmable power-on reset delay and bypass pin for noise reduction. It delivers 3.0 V output at ±0.5% accuracy (A-grade), 180 mV dropout at 200 mA, and 20 µVRMS output noise (BW = 300 Hz–50 kHz) when using 0.01 µF bypass capacitor. It operates across −40°C to +125°C and supports cellular phones, camcorders, and portable instrumentation.
For engineers reviewing the LP2988AIMM-3.0/NOPB datasheet, LP2988AIMM-3.0/NOPB pinout, LP2988AIMM-3.0/NOPB application, or LP2988AIMM-3.0/NOPB equivalent, key selection criteria include its low-noise LDO architecture, single-capacitor POR delay implementation, 8-pin VSSOP package footprint, and compatibility with high-PSRR, low-ESR output capacitors in space-constrained battery-powered systems.
Technical Context
The LP2988AIMM-3.0/NOPB uses an optimized vertically integrated PNP (VIP) process to achieve ultra-low dropout and minimal ground current across load range. Its error comparator provides open-collector reset flag with −4.6% to −6.6% output voltage threshold hysteresis and 220 mV low-state voltage at 300 µA sink current.
Power-on reset timing is set by external capacitor on DELAY pin (CDLY = TDELAY / 5.59×10⁵), while BYPASS pin connects to 0.01 µF low-leakage capacitor to reduce bandgap reference noise contribution-enabling 20 µVRMS output noise performance unmatched by standard LDOs like the LP2987.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±0.5% (A-grade) at 25°C; ensures stable MCU core or sensor biasing without external feedback. |
| Dropout Voltage | 180 mV @ 200 mA load (typical); enables regulation from 3.18 V input-critical for single-cell Li-ion or Li-poly systems. |
| Output Noise | 20 µVRMS (300 Hz–50 kHz, CBYPASS = 0.01 µF); meets low-noise analog/RF supply requirements in camera modules and audio codecs. |
| Quiescent Current | <2 µA in shutdown mode; extends battery life in always-on wake-up circuits and IoT endpoint sleep states. |
| Power-On Reset Delay | Programmable via single external capacitor on DELAY pin; eliminates need for discrete RC timing networks or dedicated supervisor ICs. |
| Operating Temp Range | −40°C to +125°C junction temperature; qualified for automotive infotainment and industrial handheld environments. |
| Package | VSSOP-8 (DGK), 3.0 mm × 3.0 mm, 0.65 mm pitch; surface-mount compatible with fine-pitch PCB assembly and thermal vias for 200°C/W θJ−A. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm body, 0.65 mm lead pitch, exposed thermal pad (not electrically connected). RoHS-compliant, Sn finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BYPASS | Bandgap reference bypass | Connects 0.01 µF low-leakage capacitor (NPO/COG ceramic or film) to reduce output noise by filtering reference ripple. |
| DELAY | Reset delay timing node | Sinks 2.2 µA constant current until VOUT reaches 95% of nominal; external capacitor sets POR delay time (TDELAY = 5.59×10⁵ × CDLY). |
| GROUND | Analog ground reference | Low-impedance return path for regulator core, error amplifier, and bypass circuit; must be routed separately from power ground. |
| INPUT | Input supply connection | Accepts 2.1 V to 16 V DC; requires ≥2.2 µF input capacitor within 12.7 mm of pin to suppress supply transients and EMI. |
| SENSE | Output voltage sensing | High-impedance feedback node; connects directly to regulated output or remote sense point to compensate for PCB trace IR drop. |
| OUTPUT | Regulated output terminal | Delivers up to 200 mA continuous; requires ≥4.7 µF output capacitor with ESR between 0.1 Ω and 2 Ω for stability. |
| SHUTDOWN | Enable/disable control | Active-high logic input; drives high (>1.6 V) to enable, low (<0.18 V) to enter <2 µA shutdown; slew rate ≥40 mV/µs required. |
| ERROR | Open-collector reset flag | Asserts low when VOUT drops >4.6% below nominal; requires external pull-up resistor to system rail for reset signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-noise regulation | 20 µVRMS output noise with 0.01 µF bypass capacitor-enables clean supply for ADCs, PLLs, and RF front-ends. |
| Single-component POR delay | Delay time set by one external capacitor on DELAY pin; eliminates discrete timing resistors and reduces BOM count. |
| Sub-2 µA shutdown current | Draws <2 µA quiescent current when SHUTDOWN pin is low-supports multi-year battery life in maintenance-free sensors. |
| High-accuracy output | ±0.5% output tolerance (A-grade) over temperature and line/load-reduces need for post-regulation trimming in precision systems. |
| Integrated protection | Thermal shutdown and current limiting prevent damage during overload or ambient temperature excursions up to +125°C. |
Applications
| Cellular Phone Power Management | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Regulating 3.0 V supply for baseband processor I/O and RF transceiver bias rails in slim smartphone designs. IC Role / Device Role / Timing Role: Low-noise LDO providing stable, ripple-free 3.0 V output with POR signal for sequenced power-up of modem and PMIC subsystems. Use Value: 20 µVRMS noise prevents RF desensitization; 180 mV dropout allows operation down to 3.18 V input-extending usable battery voltage range. |
Use Scenario: Supplying analog front-end (AFE) and microcontroller core in handheld ECG or pulse oximeter devices. IC Role / Device Role / Timing Role: Precision 3.0 V source with reset assertion on brownout, ensuring reliable boot and data acquisition integrity during battery sag. Use Value: ±0.5% output accuracy maintains ADC reference stability; sub-2 µA shutdown current enables multi-week standby on coin cell. |
| Digital Camcorder Sensor Bias | Industrial Handheld Scanner |
|
Use Scenario: Powering CMOS image sensor and ISP core in compact camcorders where EMI-sensitive analog paths coexist with digital logic. IC Role / Device Role / Timing Role: Ultra-low-noise 3.0 V regulator with bypass pin decoupling, delivering clean bias independent of switching DC/DC noise. Use Value: 20 µVRMS noise floor avoids fixed-pattern noise in raw sensor output; VSSOP-8 footprint saves board area vs. SOIC-8 alternatives. |
Use Scenario: Providing regulated 3.0 V for laser diode driver, barcode decoder ASIC, and Bluetooth radio in ruggedized warehouse scanners. IC Role / Device Role / Timing Role: Robust LDO with thermal/current protection and wide input range (2.1–16 V) accommodating 3.7 V Li-ion and 12 V adapter inputs. Use Value: −40°C to +125°C rating ensures reliability in uncontrolled ambient conditions; 200 mA output supports peak burst loads during scan initiation. |
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 |
|---|---|---|---|
| TLC7703IPW | 3.3 V fixed output, no bypass pin, 35 µVRMS noise, 250 mA output, SOIC-8 only | Lacks programmable POR and ultra-low-noise capability; suitable for non-critical digital rails only | Select when 3.3 V output is acceptable and noise sensitivity is low; not drop-in due to different pinout and no BYPASS function |
| LP2985AIM5-3.0/NOPB | Same 3.0 V A-grade output but SOT-23-5 package, no DELAY or BYPASS pins, 45 µVRMS noise, 150 mA max | Smaller footprint but no POR or noise-reduction features; limited current and thermal performance | Choose for space-constrained designs where POR and ultra-low noise are unnecessary; incompatible pin mapping prevents direct replacement |
Compared with TLC7703IPW and LP2985AIM5-3.0/NOPB, the LP2988AIMM-3.0/NOPB uniquely combines 3.0 V precision, 20 µVRMS noise, and single-capacitor POR in a thermally enhanced VSSOP-8-making it irreplaceable in noise-critical, battery-operated imaging and measurement systems requiring guaranteed power sequencing.
Availability
LP2988AIMM-3.0/NOPB is available at Aetrix Electronics and suitable for cellular phone power management, portable medical instrumentation, digital camcorder sensor bias, and industrial handheld scanner applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LP2988AIMM-3.0/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 broad automotive, industrial, and consumer qualification.
The LP2988AIMM-3.0/NOPB belongs to TI's micropower ultra-low-dropout regulator family, engineered specifically for noise-sensitive portable electronics where clean, accurate, and sequenced power delivery is essential.
FAQ
What is the maximum input voltage rating for LP2988AIMM-3.0/NOPB?
The LP2988AIMM-3.0/NOPB has an absolute maximum input supply voltage of +16 V and an operating input range of 2.1 V to +16 V. Exceeding 16 V may cause permanent damage. For reliable operation, maintain VIN ≤ VO + 1 V under full load to ensure sufficient headroom for dropout and transient margin.
Does LP2988AIMM-3.0/NOPB require an external bypass capacitor to achieve its specified 20 µVRMS noise performance?
Yes, LP2988AIMM-3.0/NOPB requires a 0.01 µF low-leakage capacitor (NPO/COG ceramic or film) connected to the BYPASS pin to achieve its 20 µVRMS output noise specification. Without this capacitor, noise reverts to ~100 µVRMS, matching the LP2987 variant. Leakage must remain below 1 nA over temperature to avoid output voltage drift.
How is the power-on reset delay time calculated for LP2988AIMM-3.0/NOPB?
The power-on reset delay time for LP2988AIMM-3.0/NOPB is calculated using CDLY = TDELAY / 5.59×10⁵, where CDLY is in farads and TDELAY in seconds. For example, a 100 ms delay requires a 180 nF capacitor. The DELAY pin sinks a precise 2.2 µA current, and the reset asserts low until CDLY charges to 1.23 V.
Can LP2988AIMM-3.0/NOPB be used with ceramic output capacitors?
Yes, LP2988AIMM-3.0/NOPB supports ceramic output capacitors, but a 1 Ω series resistor must be added to ensure minimum ESR (0.1–2 Ω) for stability. Standard 4.7 µF X5R/X7R ceramics typically exhibit <15 mΩ ESR and will cause oscillation without this resistor. Tantalum remains the preferred choice for optimal phase margin.
What is the thermal resistance (θJ−A) of the VSSOP-8 package used by LP2988AIMM-3.0/NOPB?
The VSSOP-8 (DGK) package for LP2988AIMM-3.0/NOPB has a junction-to-ambient thermal resistance (θJ−A) of 200°C/W under standard JEDEC test conditions. With proper PCB layout-including thermal vias to inner ground planes-actual θJ−A can be reduced to ~60°C/W, enabling 200 mA continuous operation at +85°C ambient.
LP2988AIMM-3.0/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:
- Active
- 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-VSSOP
LP2988AIMM-3.0/NOPB FAQ
1.How can I place an order for LP2988AIMM-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2988AIMM-3.0/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 LP2988AIMM-3.0/NOPB reliable?
The price and inventory of LP2988AIMM-3.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2988AIMM-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LP2988AIMM-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2988AIMM-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2988AIMM-3.0/NOPB?
LP2988AIMM-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2988AIMM-3.0/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 LP2988AIMM-3.0/NOPB?
For technical support, including LP2988AIMM-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2988AIMM-3.0/NOPB requirements.
6.How does Aetrix verify that LP2988AIMM-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2988AIMM-3.0/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 LP2988AIMM-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LP2988AIMM-3.0/NOPB?
All LP2988AIMM-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2988AIMM-3.0/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 LP2988AIMM-3.0/NOPB part is unused and in its original packaging.
Return procedure for LP2988AIMM-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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