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Texas Instruments LP3995ITLX-2.5/NOPB
- Part No.:
- LP3995ITLX-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 5-WFBGA, DSBGA
- Datasheet:
-
LP3995ITLX-2.5/NOPB.pdf
- Description:
- IC REG LINEAR 2.5V 150MA 5DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,770
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Product details
Overview
LP3995ITLX-2.5/NOPB from Texas Instruments is a micropower 150-mA CMOS low-dropout (LDO) voltage regulator in a 5-pin DSBGA package, delivering a fixed 2.5 V output with ±2% tolerance, 60 mV typical dropout at full load, and 25 µVRMS output noise (10 Hz–100 kHz). It powers RF/analog circuitry in space-constrained portable devices requiring fast enable/disable control and ultra-low quiescent current.
For engineers reviewing the LP3995ITLX-2.5/NOPB datasheet, LP3995ITLX-2.5/NOPB pinout, LP3995ITLX-2.5/NOPB application, or LP3995ITLX-2.5/NOPB equivalent, key selection criteria include its 30 µs turnon/175 µs turnoff timing, active discharge on shutdown, stability with 1-µF ceramic output capacitor, and −40°C to +125°C junction temperature operation.
Technical Context
The LP3995ITLX-2.5/NOPB employs a CMOS pass transistor architecture with integrated bandgap reference and active feedback loop, enabling stable regulation with minimal external components. Its BYPASS pin connects directly to the high-impedance node of the internal reference, allowing a 10 nF capacitor to suppress noise without degrading transient response.
Enable logic operates with VIH ≥ 0.9 V and VIL ≤ 0.4 V, driving an internal pull-down FET during disable to actively discharge the output capacitance. Thermal shutdown activates at ~160°C with ~20°C hysteresis, and short-circuit current limit is 450 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over −40°C to +125°C; ensures stable bias for precision analog/RF ICs. |
| Max Output Current | 150 mA continuous; supports moderate-power subsystems like Bluetooth baseband or sensor signal chains. |
| Dropout Voltage | 60 mV typical at 150 mA; enables operation down to VIN = 2.55 V, maximizing battery runtime in single-cell Li-ion systems. |
| Quiescent Current | 85–200 µA under load; drops to ≤1.5 µA in shutdown-critical for always-on keep-alive circuits. |
| Output Noise | 25 µVRMS (10 Hz–100 kHz); low enough for sensitive RF receivers and ADC reference supplies. |
| PSRR | 60 dB at 1 kHz; rejects ripple from noisy switching supplies feeding mixed-signal SoCs. |
| Enable Timing | 30 µs turnon / 175 µs turnoff; supports rapid power sequencing in multi-rail portable platforms. |
Pinout & Package
LP3995ITLX-2.5/NOPB uses a 5-pin DSBGA (YZR) package measuring 1.502 mm × 1.045 mm, with bottom-side thermal pad connected to GND. Pin mapping is verified per TI SNVS179F Rev F (2015).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (C3) | IN | Input supply connection; requires 1-µF ceramic capacitor within 1 cm of pin for stability. |
| 2 (B2) | GND | Analog ground reference; must be tied to PCB ground plane with low-inductance path. |
| 3 (A1) | EN | Logic-controlled enable input; high ≥0.9 V enables regulator, low ≤0.4 V disables with active output discharge. |
| 4 (A3) | BYPASS | Bandgap reference bypass node; 10 nF capacitor reduces output noise and prevents startup overshoot. |
| 6 (C1) | OUT | Regulated 2.5 V output; stable with 1-µF ceramic capacitor (ESR 5–500 mΩ) directly at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Active Discharge on Shutdown | Internal FET pulls OUT to GND when EN is low-eliminates hold-up time and prevents unintended wake-up in battery-powered sleep modes. |
| Ceramic-Capacitor Stability | Guaranteed stable with 1-µF X7R/Z5U/Y5V ceramic output capacitor-enables smallest possible PCB footprint vs. tantalum alternatives. |
| Virtually Zero Shutdown Current | ≤1.5 µA max IQ in disable state-extends shelf life and standby time in IoT sensors and wearables. |
| Fast Transient Response | No degradation in load step response when 10 nF BYPASS capacitor is used-maintains regulation during RF transmit bursts. |
| Thermal & Short-Circuit Protection | Auto-recovering thermal shutdown at 160°C and 450 mA current limiting-prevents damage during fault conditions without external circuitry. |
Applications
| GSM Portable Phones | Bluetooth Devices |
|---|---|
|
Use Scenario: Powering GSM transceiver RF front-end and baseband processor core rails. IC Role / Device Role / Timing Role: Low-noise 2.5 V LDO supplying VCC for RF synthesizer PLL and ADC reference. Use Value: 25 µVRMS noise and 60 dB PSRR prevent phase noise degradation and spurious emissions in cellular bands. |
Use Scenario: Supplying 2.5 V to Bluetooth 5.0 SoC digital I/O and radio interface. IC Role / Device Role / Timing Role: Enable-controlled power rail for Bluetooth controller, synchronized with host MCU sleep/wake cycles. Use Value: 30 µs turnon ensures immediate readiness after wake signal; 175 µs turnoff eliminates leakage during deep sleep. |
| Portable Information Appliances | CDMA Cellular Handsets |
|
Use Scenario: Providing regulated 2.5 V for touch controller, display driver, and flash memory interface. IC Role / Device Role / Timing Role: Always-on LDO maintaining RAM retention and real-time clock during system suspend. Use Value: Stable no-load regulation and ≤1.5 µA shutdown current extend battery life beyond 30 days in standby. |
Use Scenario: Biasing CDMA power amplifier driver stage and analog front-end filters. IC Role / Device Role / Timing Role: Low-dropout 2.5 V source operating from partially discharged Li-ion (down to 2.55 V). Use Value: 60 mV dropout enables full 150 mA delivery even at end-of-discharge, sustaining call quality until battery cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F12-DBVR | Fixed 1.2 V output; 200 mA rating; 120 mV dropout at 200 mA; same DSBGA-5 package. | Not suitable for 2.5 V systems; requires redesign if output voltage change is unacceptable. | Select only if target application requires lower voltage and higher current, with board layout reuse. |
| MCP1700T-2502E/MB | 2.5 V output; SOT-23-3 package; 250 mA rating; 600 mV dropout at 250 mA; no BYPASS pin or active discharge. | Larger dropout limits use in low-VIN battery apps; slower turnoff (~ms) lacks active discharge for fast shutdown. | Choose for cost-sensitive, non-RF applications where 3-pin simplicity and higher current outweigh noise/turnoff speed needs. |
Compared with LP3995ITLX-2.5/NOPB, TPL720F12-DBVR offers higher current but incompatible voltage, while MCP1700T-2502E/MB trades noise performance and fast turnoff for lower cost and simpler layout-neither is pin-compatible, and both require schematic and layout revision.
Availability
LP3995ITLX-2.5/NOPB is available at Aetrix Electronics and suitable for GSM phones, Bluetooth modules, portable information appliances, and CDMA handsets requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LP3995ITLX-2.5/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 expertise in power management IC design and high-volume manufacturing.
The LP3995ITLX-2.5/NOPB belongs to TI's micropower LDO family engineered for battery-powered portable electronics-prioritizing ultra-low IQ, fast enable/disable, and ceramic-capacitor compatibility to minimize size and cost in handheld and wearable systems.
FAQ
What is the maximum input voltage for LP3995ITLX-2.5/NOPB?
The absolute maximum input voltage for LP3995ITLX-2.5/NOPB is 6.5 V, but the recommended operating range is 2.5 V to 6 V. Exceeding 6.5 V risks permanent damage. For reliable operation in battery-powered designs, VIN should remain ≥2.55 V to maintain regulation at full 150 mA load due to its 60 mV typical dropout.
Does LP3995ITLX-2.5/NOPB require an external bypass capacitor?
Yes-LP3995ITLX-2.5/NOPB requires a 10 nF ceramic capacitor between the BYPASS pin and GND. This capacitor reduces output noise by stabilizing the internal bandgap reference and prevents output overshoot during startup. Omitting it increases RMS noise and may cause instability under dynamic load conditions.
Can LP3995ITLX-2.5/NOPB operate without a load?
Yes-LP3995ITLX-2.5/NOPB remains stable and in regulation with zero load current. This no-load stability is confirmed in TI's SNVS179F datasheet and makes it suitable for applications like CMOS RAM keep-alive circuits or always-on sensor bias rails where standby current must be minimized.
What is the thermal shutdown behavior of LP3995ITLX-2.5/NOPB?
LP3995ITLX-2.5/NOPB activates thermal shutdown at approximately 160°C junction temperature and auto-recovers when temperature falls to ~140°C. This hysteresis prevents oscillation during overload. The device is not intended for continuous thermal cycling-proper PCB copper area and thermal vias are required to avoid sustained shutdown in high-power applications.
Is LP3995ITLX-2.5/NOPB compatible with ceramic output capacitors?
Yes-LP3995ITLX-2.5/NOPB is explicitly designed and characterized for stability with 1-µF ceramic output capacitors (X7R, Y5V, Z5U dielectrics), requiring ESR between 5 mΩ and 500 mΩ. Unlike many LDOs, adding the 10 nF BYPASS capacitor does not affect transient response, preserving fast load-step performance.
LP3995ITLX-2.5/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 200 µA
- PSRR:
- 60dB ~ 50dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DSBGA (1.41x1.08)
LP3995ITLX-2.5/NOPB FAQ
1.How can I place an order for LP3995ITLX-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP3995ITLX-2.5/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 LP3995ITLX-2.5/NOPB reliable?
The price and inventory of LP3995ITLX-2.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP3995ITLX-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LP3995ITLX-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP3995ITLX-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP3995ITLX-2.5/NOPB?
LP3995ITLX-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP3995ITLX-2.5/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 LP3995ITLX-2.5/NOPB?
For technical support, including LP3995ITLX-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP3995ITLX-2.5/NOPB requirements.
6.How does Aetrix verify that LP3995ITLX-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LP3995ITLX-2.5/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 LP3995ITLX-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LP3995ITLX-2.5/NOPB?
All LP3995ITLX-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP3995ITLX-2.5/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 LP3995ITLX-2.5/NOPB part is unused and in its original packaging.
Return procedure for LP3995ITLX-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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