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Texas Instruments LP5990TMX-2.8/NOPB
- Part No.:
- LP5990TMX-2.8/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 4-WFBGA, DSBGA
- Datasheet:
-
LP5990TMX-2.8/NOPB.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
LP5990TMX-2.8/NOPB from Texas Instruments is a micropower 200mA CMOS low-dropout voltage regulator delivering a fixed 2.8V output with ±1% accuracy over −40°C to +125°C, 160mV dropout at 200mA, and 60 μVRMS output noise - designed for space-constrained portable systems including cellular handsets and handheld information appliances.
For engineers reviewing the LP5990TMX-2.8/NOPB datasheet, LP5990TMX-2.8/NOPB pinout, LP5990TMX-2.8/NOPB application, or LP5990TMX-2.8/NOPB equivalent, key selection criteria include ultra-low quiescent current (30 μA enabled / 10 nA disabled), stability with 0402 1.0 µF ceramic capacitors, and DSBGA package compatibility with high-density PCB layouts.
Technical Context
The LP5990TMX-2.8/NOPB employs a CMOS pass transistor architecture enabling operation from 2.2V to 5.5V input while maintaining regulation down to 160mV headroom at full 200mA load. Its push-pull enable circuitry achieves 500μs shutdown time and 60μs startup time, supporting rapid power-state transitions in battery-powered devices.
Designed specifically for stability with miniature 0402-case 1.0µF ceramic capacitors (ESR 5–500 mΩ), the device integrates thermal overload and short-circuit protection, and features logic-controlled enable with VIL ≤0.35V and VIH ≥1.0V thresholds - eliminating need for external level-shifting circuitry in standard GPIO interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% over −40°C to +125°C junction temperature - ensures stable core/peripheral rail in thermally varying portable environments. |
| Max Output Current | 200mA continuous - sufficient for powering RF transceivers, microcontroller cores, or sensor subsystems in compact handheld devices. |
| Dropout Voltage | 160mV at 200mA load - enables regulation from 2.96V input, extending battery runtime in single-cell Li-ion (2.8–4.2V) applications. |
| Quiescent Current | 30 μA (enabled), 10 nA (disabled) - minimizes standby leakage, critical for multi-week battery life in always-on sensing nodes. |
| Output Noise | 85 μVRMS (BW = 10 Hz–100 kHz, VOUT = 2.8V) - low enough for noise-sensitive analog circuits like ADC references or RF LDO stages. |
| PSRR | 55 dB at 10 kHz - suppresses switching noise from adjacent DC/DC converters, improving signal integrity in mixed-signal SoC power domains. |
| Capacitor Support | Stable with 0402 1.0 µF X7R/X5R ceramics (ESR 5–500 mΩ) - reduces total solution size to <2.5 mm², meeting stringent board area constraints. |
Pinout & Package
LP5990TMX-2.8/NOPB uses a 4-bump DSBGA package (YFQ0004CEA), 0.4 mm pitch, 866 µm × 917 µm footprint, lead-free, moisture sensitivity level 1 (260°C peak reflow). The package is light-sensitive; direct exposure to red/IR sources must be avoided during operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Accepts 2.2V–5.5V; requires local 1.0 µF ceramic capacitor within 1 cm of pin to minimize input inductance and ensure stability. |
| VOUT | Regulated output | Delivers fixed 2.8V; connects directly to load; requires 1.0 µF ceramic capacitor (X7R/X5R, ESR 5–500 mΩ) placed within 1 cm for transient response and stability. |
| VEN | Logic-enable input | Active-high control: ≥1.0V enables regulator; ≤0.35V disables it, reducing IQ to 10 nA; internal 3 MΩ pull-down eliminates need for external resistor. |
| GND | Power ground reference | Common return path for VIN, VOUT, and VEN; must connect to low-impedance analog ground plane to maintain PSRR and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 30 μA quiescent current enables >1-year battery life in 200mAh coin-cell applications with intermittent 200mA bursts. |
| Ultra-small capacitor support | Guaranteed stability with 0402 1.0 µF ceramics - eliminates need for larger 0603/0805 caps, saving >0.6 mm² board area per regulator. |
| Fast transient response | ±50 mV load step deviation (1 mA ↔ 200 mA in 1 μs) and 4 mV line transient - maintains clean supply during processor wake/sleep transitions. |
| Integrated protection | Thermal shutdown (160°C trigger, 20°C hysteresis) and short-circuit current limit (600 mA typical) prevent damage during fault conditions without external components. |
| No-load stability | Remains in regulation with zero load current - supports always-on monitoring circuits without requiring minimum load resistors. |
Applications
| Cellular Handset Power Rail | Wearable Sensor Subsystem |
|---|---|
Use Scenario: Powers baseband processor I/O or RF front-end bias in slim smartphone designs where board area and battery life are constrained. IC Role / Device Role / Timing Role: Primary LDO supplying 2.8V to cellular transceiver modules requiring low noise and fast enable/disable cycling during call setup and idle modes. Use Value: 85 μVRMS noise and 55 dB PSRR prevent AM modulation on RF carriers; 60 μs startup enables rapid channel acquisition without supply brownout. | Use Scenario: Supplies 2.8V to MEMS accelerometers and BLE radio ICs in compact fitness trackers with coin-cell batteries. IC Role / Device Role / Timing Role: Low-quiescent LDO providing regulated rail during sleep (10 nA shutdown) and active (200mA burst) states, synchronized to MCU wake signals via VEN. Use Value: 10 nA shutdown current extends 200mAh battery life to >18 months in typical usage; 0402 capacitor compatibility fits sub-10mm² wearable PCBs. |
| Handheld Information Appliance | Industrial Portable Data Logger |
Use Scenario: Delivers clean 2.8V to LCD controller and touch-screen interface in ruggedized PDAs operating across −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Main system LDO ensuring ±1% output accuracy over full temperature range, with thermal shutdown protecting against enclosure overheating. Use Value: −40°C to +125°C junction rating and 1% tolerance maintain display contrast and touch accuracy in outdoor deployments; 160mV dropout preserves operation as battery discharges to 2.96V. | Use Scenario: Powers precision ADC and microcontroller in battery-operated environmental sensors deployed in remote field locations. IC Role / Device Role / Timing Role: Stable reference LDO decoupling analog front-end from noisy digital sections, with shutdown controlled by host MCU to conserve energy between sampling intervals. Use Value: 60 μVRMS noise prevents quantization errors in 16-bit ADC measurements; 500 μs shutdown allows precise timing of measurement windows without supply droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, micropower LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F285PDBVR | 200mA, 2.85V output, 25 μA IQ, 120mV dropout, SOT-23-5 package | Larger footprint (SOT-23 vs DSBGA); higher dropout limits use with lower Vin sources | Select when board layout permits larger package and slightly tighter output tolerance (±0.5%) is required. |
| MCP1700T-2802E/TT | 250mA, 2.8V output, 1.6 μA IQ, 600mV dropout, SOT-23-3 package | Higher dropout (600mV) and lower max load (250mA); no enable pin - always-on operation | Select only for ultra-low-IQ applications where enable control and low dropout are not required. |
Compared with TPL720F285PDBVR and MCP1700T-2802E/TT, the LP5990TMX-2.8/NOPB uniquely combines DSBGA footprint, 160mV dropout, and 10nA shutdown - making it optimal for space- and battery-life-critical portable designs where rapid enable/disable sequencing is needed.
Availability
LP5990TMX-2.8/NOPB is available at Aetrix Electronics and suitable for cellular handset power rails, wearable sensor subsystems, handheld information appliances, and industrial portable data loggers requiring stable component supply with guaranteed long-term continuity.
Supply support for LP5990TMX-2.8/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 specializing in analog and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.
The LP5990 series belongs to TI's micropower LDO product line, engineered specifically for battery-powered portable electronics demanding ultra-low IQ, minimal solution size, and robust thermal performance across extended temperature ranges.
FAQ
What is the maximum input voltage rating for the LP5990TMX-2.8/NOPB?
The LP5990TMX-2.8/NOPB has an absolute maximum input voltage (VIN) rating of 6.0V. However, its specified operating input voltage range is 2.2V to 5.5V. Exceeding 5.5V may cause functional degradation or damage, even if below the 6.0V absolute maximum limit. Always operate within the 2.2V–5.5V range for guaranteed performance and reliability of the LP5990TMX-2.8/NOPB.
Does the LP5990TMX-2.8/NOPB require an external pull-up resistor on the VEN pin?
No, the LP5990TMX-2.8/NOPB does not require an external pull-up resistor on the VEN pin. It includes an internal 3 MΩ resistor from VEN to GND, ensuring reliable disable state when left floating. If permanent enable is desired, tie VEN directly to VIN; for GPIO control, drive VEN to ≥1.0V (enable) or ≤0.35V (disable) - no external components are needed for basic operation of the LP5990TMX-2.8/NOPB.
Can the LP5990TMX-2.8/NOPB be used with Y5V or Z5U ceramic capacitors?
The LP5990TMX-2.8/NOPB is not recommended for use with Y5V or Z5U ceramic capacitors. These dielectrics exhibit severe capacitance loss (>50%) over temperature and DC bias, potentially dropping below the 0.3 µF minimum required for stability. X7R or X5R dielectrics are specified - they maintain ≥85% of nominal capacitance across −40°C to +85°C and typical bias conditions, ensuring reliable regulation and transient response for the LP5990TMX-2.8/NOPB.
What is the thermal shutdown behavior of the LP5990TMX-2.8/NOPB?
The LP5990TMX-2.8/NOPB activates thermal shutdown at a junction temperature of 160°C and includes 20°C hysteresis, meaning it resumes normal operation only after cooling to ≤140°C. During shutdown, output is disabled and quiescent current drops to near-zero. This protection is fully integrated - no external circuitry is required. Thermal shutdown safeguards the LP5990TMX-2.8/NOPB during sustained high-power-dissipation conditions, such as high load current combined with elevated ambient temperature or poor PCB thermal design.
Is the LP5990TMX-2.8/NOPB compatible with lead-free reflow processes?
Yes, the LP5990TMX-2.8/NOPB is fully compatible with lead-free reflow processes. It carries an MSL Level-1 rating (unlimited floor life) and is qualified for peak reflow temperatures up to 260°C, matching JEDEC J-STD-020 requirements. The device uses SNAGCU (tin-silver-copper) ball finish and is RoHS-compliant. Standard lead-free reflow profiles - including ramp-to-spike and soak profiles - may be applied without risk to solder joint integrity or electrical performance of the LP5990TMX-2.8/NOPB.
LP5990TMX-2.8/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA
LP5990TMX-2.8/NOPB FAQ
1.How can I place an order for LP5990TMX-2.8/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5990TMX-2.8/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 LP5990TMX-2.8/NOPB reliable?
The price and inventory of LP5990TMX-2.8/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5990TMX-2.8/NOPB is usually 5 days.
3.What payment methods are accepted for LP5990TMX-2.8/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5990TMX-2.8/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5990TMX-2.8/NOPB?
LP5990TMX-2.8/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5990TMX-2.8/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 LP5990TMX-2.8/NOPB?
For technical support, including LP5990TMX-2.8/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5990TMX-2.8/NOPB requirements.
6.How does Aetrix verify that LP5990TMX-2.8/NOPB is sourced from the original manufacturer or authorized distributors?
All LP5990TMX-2.8/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 LP5990TMX-2.8/NOPB meets industry standards.
7.What is the process for return or replacement of LP5990TMX-2.8/NOPB?
All LP5990TMX-2.8/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP5990TMX-2.8/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 LP5990TMX-2.8/NOPB part is unused and in its original packaging.
Return procedure for LP5990TMX-2.8/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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