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Texas Instruments LP3995ITLX-2.8/NOPB
- Part No.:
- LP3995ITLX-2.8/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 5-WFBGA, DSBGA
- Datasheet:
-
LP3995ITLX-2.8/NOPB.pdf
- Description:
- IC REG LINEAR 2.8V 150MA 5DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
LP3995ITLX-2.8/NOPB from Texas Instruments is a micropower 150-mA CMOS low-dropout (LDO) voltage regulator in a 5-pin DSBGA package, delivering a fixed 2.8 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-2.8/NOPB datasheet, LP3995ITLX-2.8/NOPB pinout, LP3995ITLX-2.8/NOPB application, or LP3995ITLX-2.8/NOPB equivalent, key selection criteria include its 30 µs turnon/175 µs turnoff timing, active-discharge shutdown, stability with 1-µF ceramic output capacitor, and −40°C to +125°C junction temperature operation.
Technical Context
The LP3995ITLX-2.8/NOPB employs a CMOS pass transistor architecture with integrated bandgap reference and active feedback control, enabling stable regulation across 2.5 V–6 V input while maintaining <200 µA quiescent current at 150 mA load. Its BYPASS pin connects directly to the high-impedance node of the internal reference, allowing external 10 nF capacitor placement to suppress noise without degrading transient response.
Enable logic operates with VIH ≥ 0.9 V and VIL ≤ 0.4 V, triggering internal pull-down FET activation during disable to discharge COUT rapidly. Thermal shutdown activates at ~160°C with ~20°C hysteresis, and short-circuit protection limits output current to 450 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% (±56 mV), specified over −40°C to +125°C junction temperature range. |
| Max Output Current | 150 mA continuous; supports full-load operation with 60 mV dropout at VIN = 2.86 V. |
| Quiescent Current | 140–200 µA at 150 mA load; drops to ≤1.5 µA when disabled (VEN ≤ 0.4 V). |
| Output Noise | 25 µVRMS (10 Hz–100 kHz), reduced further by 10 nF BYPASS capacitor. |
| PSRR | 60 dB at 1 kHz, 50 dB at 10 kHz - critical for RF supply rail isolation. |
| Turnon/Turnoff Time | 30 µs to 95% VOUT, 175 µs to 5% VOUT - enables precise power sequencing. |
| Stability | Guaranteed with ≥1 µF ceramic COUT (ESR 5–500 mΩ); no minimum ESR requirement. |
Pinout & Package
LP3995ITLX-2.8/NOPB uses a 5-pin DSBGA (YZR) package measuring 1.502 mm × 1.045 mm, with bottom-side thermal pad connected to GND. Pin numbering follows top-view layout: A3 = BYPASS, C3 = IN, A1 = EN, B2 = GND, C1 = OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input voltage supply | Accepts 2.5 V–6 V; requires 1 µF ceramic decoupling within 1 cm of pin. |
| GND (Pin 2) | Ground reference | Common return for IN, OUT, EN, and BYPASS; thermal pad must connect to GND plane. |
| EN (Pin 3) | Logic-enable control | Active-high: ≥0.9 V enables regulator; ≤0.4 V disables with active output discharge. |
| BYPASS (Pin 4) | Noise-reduction node | Connects to bandgap reference; 10 nF capacitor reduces output noise and prevents startup overshoot. |
| OUT (Pin 6) | Regulated output | Delivers 2.8 V to load; stable with 1 µF ceramic capacitor (X7R/Y5V/Z5U dielectric). |
Key Features
| Feature | Design Value |
|---|---|
| Active-discharge shutdown | Internal FET pulls OUT to GND during disable, achieving 175 µs turnoff and eliminating hold-up voltage. |
| Ultra-low-noise regulation | 25 µVRMS noise floor + 10 nF BYPASS capacitor enables clean RF/analog supply rails. |
| Ceramic-capacitor optimized | Stable with 1 µF X7R/Y5V ceramic COUT (no tantalum required), reducing board area and cost. |
| Wide-input, low-dropout operation | Operates from 2.5 V input with only 60 mV dropout at 150 mA - extends battery runtime in 3 V systems. |
| Robust protection suite | Integrated thermal shutdown (~160°C), short-circuit current limit (450 mA), and ESD-rated (±2 kV HBM). |
Applications
| GSM Portable Phones | Bluetooth Devices |
|---|---|
|
Use Scenario: Powering RF transceiver ICs and baseband processors in dual-mode handsets with tight PCB area constraints. IC Role / Device Role / Timing Role: Primary 2.8 V LDO for GSM PA bias and analog front-end, sequenced via EN pin during mode transitions. Use Value: 30 µs turnon ensures rapid RF power-up; 25 µVRMS noise prevents RX desensitization in adjacent bands. |
Use Scenario: Supplying 2.8 V to Bluetooth SoC radios and audio codecs in wearables and earbuds. IC Role / Device Role / Timing Role: Always-on LDO for Bluetooth controller core, disabled during sleep via host MCU GPIO. Use Value: ≤1.5 µA shutdown current extends multi-week battery life; 1 µF ceramic footprint fits sub-10 mm² layouts. |
| CDMA Cellular Handsets | Portable Information Appliances |
|
Use Scenario: Delivering low-noise 2.8 V to CDMA transceiver synthesizers and ADC/DAC blocks. IC Role / Device Role / Timing Role: Precision analog supply rail with BYPASS pin decoupled to suppress phase noise in local oscillators. Use Value: 60 dB PSRR at 1 kHz rejects switching noise from PMIC DC/DC converters sharing same battery source. |
Use Scenario: Regulating 2.8 V for LCD bias, touch controller, and microSD interface in handheld PDAs and scanners. IC Role / Device Role / Timing Role: General-purpose LDO supporting mixed-signal loads with no-load stability and fast transient response. Use Value: Stable under zero-load conditions prevents brownout during standby; 150 mA headroom supports burst-mode peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F18-DBVR | Fixed 1.8 V output; 200 mA rating; 120 mV dropout at full load; requires 2.2 µF min COUT. | Targeted for digital core rails, not RF/analog; higher dropout reduces usable input range in 3 V systems. | Select when 1.8 V logic supply is needed and board space allows larger output capacitor. |
| MCP1826T-2802E/OT | 2.8 V output; 300 mA rating; 350 mV dropout at full load; 45 µVRMS noise; SOT-23-5 package. | Larger footprint and higher noise limit suitability for sensitive RF sections; no BYPASS pin for noise tuning. | Choose for higher current needs where noise and size are secondary to cost and availability. |
Compared with LP3995ITLX-2.8/NOPB, TPL720F18-DBVR offers higher current but lacks the ultra-low-noise BYPASS capability and fast turnoff, while MCP1826T-2802E/OT trades noise performance and DSBGA miniaturization for higher output current and wider package availability.
Availability
LP3995ITLX-2.8/NOPB is available at Aetrix Electronics and suitable for GSM/CDMA handset design, Bluetooth audio subsystems, and portable information appliances requiring stable component supply, long-lifecycle support, and guaranteed DSBGA package consistency.
Supply support for LP3995ITLX-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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in power management IC design and high-volume manufacturing.
The LP3995 series was developed specifically for battery-powered portable electronics demanding micropower efficiency, ultra-low noise, and minimal PCB footprint - targeting RF front-ends, analog signal chains, and always-on subsystems.
FAQ
What is the maximum input voltage rating for LP3995ITLX-2.8/NOPB?
The absolute maximum input voltage for LP3995ITLX-2.8/NOPB is 6.5 V, but recommended operating range is 2.5 V to 6 V. Exceeding 6.5 V risks permanent damage per Absolute Maximum Ratings. For reliable 2.8 V output, VIN should remain ≥2.86 V to maintain regulation under 150 mA load given its 60 mV typical dropout.
Does LP3995ITLX-2.8/NOPB require an external bypass capacitor, and why?
Yes - a 10 nF ceramic capacitor between BYPASS and GND is strongly recommended. The BYPASS pin connects directly to the bandgap reference's high-impedance node; adding this capacitor reduces output noise to 25 µVRMS and prevents output overshoot during startup, without affecting transient response speed.
Can LP3995ITLX-2.8/NOPB operate with no load, and what is its no-load quiescent current?
Yes, LP3995ITLX-2.8/NOPB remains stable and regulated with zero load. Its quiescent current is 85–150 µA at IOUT = 0 mA and VIN = VOUT + 1 V. When disabled (VEN ≤ 0.4 V), quiescent current drops to ≤1.5 µA - critical for battery longevity in standby modes.
What output capacitor value and type does LP3995ITLX-2.8/NOPB require for stability?
LP3995ITLX-2.8/NOPB is stable with a minimum 1 µF ceramic capacitor (X7R, Y5V, or Z5U dielectric) on the OUT pin. ESR must be 5–500 mΩ; X7R is preferred for ±15% capacitance stability over temperature. Tantalum capacitors are not recommended due to surge-current risks and higher ESR.
How does the EN pin function on LP3995ITLX-2.8/NOPB, and what are its voltage thresholds?
The EN pin provides logic-controlled enable/disable: device turns on when VEN ≥ 0.9 V (VIH) and turns off when VEN ≤ 0.4 V (VIL). During disable, an internal FET actively discharges the output capacitor, achieving 175 µs turnoff. Input leakage is ≤0.001 µA, minimizing control-line loading.
LP3995ITLX-2.8/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.8V
- 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-2.8/NOPB FAQ
1.How can I place an order for LP3995ITLX-2.8/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP3995ITLX-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 LP3995ITLX-2.8/NOPB reliable?
The price and inventory of LP3995ITLX-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 LP3995ITLX-2.8/NOPB is usually 5 days.
3.What payment methods are accepted for LP3995ITLX-2.8/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP3995ITLX-2.8/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP3995ITLX-2.8/NOPB?
LP3995ITLX-2.8/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP3995ITLX-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 LP3995ITLX-2.8/NOPB?
For technical support, including LP3995ITLX-2.8/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP3995ITLX-2.8/NOPB requirements.
6.How does Aetrix verify that LP3995ITLX-2.8/NOPB is sourced from the original manufacturer or authorized distributors?
All LP3995ITLX-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 LP3995ITLX-2.8/NOPB meets industry standards.
7.What is the process for return or replacement of LP3995ITLX-2.8/NOPB?
All LP3995ITLX-2.8/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP3995ITLX-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 LP3995ITLX-2.8/NOPB part is unused and in its original packaging.
Return procedure for LP3995ITLX-2.8/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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