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Texas Instruments LP3986TL-2525/NOPB
- Part No.:
- LP3986TL-2525/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFBGA, DSBGA
- Datasheet:
-
LP3986TL-2525/NOPB.pdf
- Description:
- IC REG LINEAR 2.5V 150MA 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,124
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Product details
Overview
LP3986TL-2525/NOPB from Texas Instruments is a dual 150 mA ultra-low-dropout CMOS voltage regulator in an 8-bump DSBGA package, delivering 2.5 V and 2.5 V outputs with 60 mV dropout at full load, 40 µVrms output noise, and 200 µs fast turn-on - designed for space-constrained CDMA/GSM handset power rails.
For engineers reviewing the LP3986TL-2525/NOPB datasheet, LP3986TL-2525/NOPB pinout, LP3986TL-2525/NOPB application, or LP3986TL-2525/NOPB equivalent, key selection criteria include dual independent enable control (VEN1/VEN2), stability with 1 µF ceramic output capacitors, −40°C to +125°C operating range, and bypass-capacitor–enabled noise reduction without compromising transient response.
Technical Context
The LP3986TL-2525/NOPB integrates two independent LDO regulators sharing a common VIN input but featuring separate EN1/EN2 controls and VOUT1/VOUT2 outputs. Each regulator uses a CMOS pass device with bandgap reference (1.23 V) and active bypass pre-charge circuitry for 200 µs startup.
It achieves 60 dB PSRR at low frequencies and maintains >50 dB at 10 kHz while operating from 2.7 V to 6.0 V input. Thermal and overcurrent protection are built-in, and crosstalk rejection between outputs is −60 dB under dynamic load switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V per regulator (VOUT1 = VOUT2 = 2.5 V); ±2.5% tolerance over −40°C to +125°C ensures stable core/logic rail delivery. |
| Max Output Current | 150 mA per regulator; supports dual low-power processor cores or RF/baseband subsystems without thermal derating at 70°C ambient. |
| Dropout Voltage | 60 mV at 150 mA; enables regulation down to VIN = 2.56 V, extending battery runtime in single-cell Li-ion (2.7–4.2 V) systems. |
| Quiescent Current | 115 µA typical (both ON); increases only slightly in dropout, preserving battery life during deep discharge conditions. |
| Output Noise | 40 µVrms (10 Hz–100 kHz); reduced to <10 µVrms with 0.01 µF BYPASS capacitor - critical for RF transceiver LNA and ADC reference supplies. |
| Turn-On Time | 200 µs with 0.01 µF BYPASS capacitor; internal 70 µA pre-charge circuit eliminates delay penalties of external soft-start networks. |
| PSRR | 60 dB @ 100 Hz, 50 dB @ 10 kHz; suppresses switching noise from DC/DC converters feeding VIN, enabling mixed-signal coexistence. |
| Operating Temp | −40°C to +125°C junction; qualified for automotive infotainment and industrial handheld environments with no derating required. |
Pinout & Package
LP3986TL-2525/NOPB uses an 8-bump DSBGA package (YZR0008), 1.59 mm × 1.59 mm, 0.5 mm pitch, ball-grid layout with exposed die pad not connected internally. Mounting requires controlled reflow per MSL Level-1 and avoidance of direct IR/red-light exposure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT1 | First regulator output | Delivers regulated 2.5 V to primary digital subsystem (e.g., baseband processor I/O); requires ≥1 µF ceramic capacitor to GND. |
| VOUT2 | Second regulator output | Delivers regulated 2.5 V to secondary domain (e.g., RF transceiver analog supply); independent from VOUT1 with −60 dB crosstalk rejection. |
| VIN | Common input supply | Accepts 2.7–6.0 V; shared by both LDOs; must be decoupled with ≥1 µF ceramic capacitor within 1 cm of pin. |
| EN1 | Enable for first regulator | Active-high logic input (VIH = 1.4 V min); ties to VIN for always-on operation or controlled via host MCU GPIO. |
| EN2 | Enable for second regulator | Independent active-high enable; allows staggered power-up sequencing (e.g., RF before baseband) without external logic. |
| BYPASS | Noise reduction node | Connects to 0.01 µF capacitor to GND; reduces output noise without slowing load transient response - unique to LP3986 architecture. |
| GND | Common ground (2 pins) | Both C2 and C3 are bonded to substrate; must connect to low-impedance analog ground plane to maintain PSRR and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Two fully isolated 150 mA regulators with separate EN inputs and output pins - enables power domain partitioning and fault containment. |
| Ultra-low-noise regulation | 40 µVrms baseline noise, reducible to <10 µVrms via dedicated BYPASS pin - meets stringent RF receiver supply requirements without LC filtering. |
| Micro-size DSBGA package | 1.59 mm × 1.59 mm, 8-bump layout - saves >60% board area vs. SOIC-8 equivalents; compatible with fine-pitch automated assembly. |
| Stable with 1 µF ceramic COUT | No ESR dependency; supports X7R/X5R 1–22 µF ceramics - eliminates need for costly tantalum or large-case MLCCs in portable designs. |
| Fast, capacitor-controlled startup | 200 µs turn-on with 0.01 µF BYPASS cap; internal 70 µA pre-charge avoids external RC networks while maintaining noise benefit. |
| Robust protection suite | Thermal shutdown and foldback current limiting (600 mA short-circuit limit) - prevents damage during output faults or PCB shorts. |
Applications
| CDMA Handset Power Management | GSM Transceiver Supply |
|---|---|
|
Use Scenario: Dual-rail power for CDMA baseband processor requiring clean 2.5 V I/O and 2.5 V core supplies with independent sequencing. IC Role / Device Role / Timing Role: LP3986TL-2525/NOPB provides tightly regulated, low-noise dual 2.5 V outputs with EN1/EN2-controlled staggered startup to meet baseband boot timing. Use Value: Eliminates need for two discrete LDOs and associated passives, reducing BOM count by 40% and PCB area by 35% versus SOIC solutions. |
Use Scenario: Low-noise analog supply for GSM PA driver and LNA stages where switching noise from PMIC DC/DC must be rejected. IC Role / Device Role / Timing Role: LP3986TL-2525/NOPB delivers 2.5 V to RF section with 60 dB PSRR at 100 Hz and 40 µVrms noise - directly meeting TRP/TIS spec margins. Use Value: BYPASS pin integration removes need for external RC filter, preserving 100 ns load step response while cutting RF subsystem noise floor by 12 dB. |
| Portable Information Appliance | Industrial Handheld Terminal |
|
Use Scenario: Compact dual-rail supply for ARM-based PDA with LCD backlight driver (2.5 V) and touch controller (2.5 V), operating from single Li-ion cell. IC Role / Device Role / Timing Role: LP3986TL-2525/NOPB regulates both domains from 2.7–4.2 V input with 60 mV dropout, sustaining operation until battery reaches 2.56 V. Use Value: 1 nA shutdown current (both regulators off) extends shelf life >10 years; DSBGA footprint fits within 3×3 mm module envelope. |
Use Scenario: Ruggedized 2.5 V supply for barcode scanner ASIC and Bluetooth radio in warehouse handheld, exposed to −25°C to +70°C ambient. IC Role / Device Role / Timing Role: LP3986TL-2525/NOPB operates across −40°C to +125°C junction range with no derating - validated for extended temperature industrial use. Use Value: Dual enable inputs allow host MCU to power-cycle scanner and radio independently, reducing average system current by 32% during idle scans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F2525PDSQR | Same 2.5 V/2.5 V dual output, but 200 mA per channel; higher IQ (25 µA vs. 115 µA typical); no BYPASS pin or noise-reduction capability. | Lacks ultra-low-noise mode; unsuitable for RF-sensitive applications requiring <15 µVrms noise. | Select TPL720F2525PDSQR only when higher output current is needed and noise is non-critical. |
| TPS7992525YZPR | 2.5 V/2.5 V dual LDO in 10-pin DSBGA; 200 mA per channel; 50 µVrms noise (no BYPASS option); 120 mV dropout at 200 mA. | Higher dropout limits usable input range; no dedicated noise-reduction path - cannot match LP3986TL-2525/NOPB's 40 µVrms baseline. | Choose TPS7992525YZPR if footprint compatibility with larger DSBGA is acceptable and 120 mV dropout is tolerable. |
Compared with TPL720F2525PDSQR and TPS7992525YZPR, LP3986TL-2525/NOPB uniquely delivers 40 µVrms noise with optional BYPASS enhancement, 60 mV dropout, and 1.59 mm² footprint - making it the only option qualified for noise-critical dual-rail RF and precision analog subsystems in ultra-compact handsets.
Availability
LP3986TL-2525/NOPB is available at Aetrix Electronics and suitable for CDMA/GSM handset design, portable information appliances, and industrial handheld terminals requiring stable component supply, long-lifecycle support, and RoHS-compliant DSBGA packaging.
Supply support for LP3986TL-2525/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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and high-reliability components for industrial, automotive, and communications markets.
The LP3986TL-2525/NOPB belongs to TI's micropower LDO family, engineered specifically for battery-powered portable electronics demanding ultra-low noise, minimal board space, and robust thermal performance across extended temperature ranges.
FAQ
What output voltages does the LP3986TL-2525/NOPB provide?
The LP3986TL-2525/NOPB is factory-set to deliver precisely 2.5 V on both VOUT1 and VOUT2 outputs, with ±2.5% tolerance over −40°C to +125°C. This fixed dual 2.5 V configuration targets logic-level and analog subsystems in cellular handsets and portable devices where matched rail symmetry is required.
Does the LP3986TL-2525/NOPB require external compensation components?
No, the LP3986TL-2525/NOPB is internally compensated and stable with 1 µF ceramic output capacitors (X7R/X5R, 5–500 mΩ ESR). Unlike many LDOs, it imposes no minimum ESR requirement and supports 1–22 µF output capacitance without oscillation - eliminating need for external resistors or capacitors in standard configurations.
How does the BYPASS pin on the LP3986TL-2525/NOPB improve performance?
The BYPASS pin on the LP3986TL-2525/NOPB connects to a 0.01 µF capacitor that shunts noise from the internal bandgap reference node. This reduces output noise from 40 µVrms to under 10 µVrms without degrading load transient response - a unique architectural feature absent in most dual-LDOs.
Can the LP3986TL-2525/NOPB operate from a single-cell Li-ion battery?
Yes, the LP3986TL-2525/NOPB operates from 2.7 V to 6.0 V input and maintains regulation down to VIN = 2.56 V (60 mV dropout at 150 mA), enabling full functionality across the entire discharge curve of a single-cell Li-ion battery (2.7–4.2 V).
What is the thermal performance of the LP3986TL-2525/NOPB in its DSBGA package?
The LP3986TL-2525/NOPB in the 8-bump DSBGA (YZR0008) package has a θJA of 220°C/W. At 150 mA per regulator and 2.7 V input, power dissipation remains below 150 mW - well within the 250 mW maximum operating limit at 70°C ambient, with no derating required up to +125°C junction temperature.
LP3986TL-2525/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- 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):
- 130 µA
- Current - Supply (Max):
- 320 µA
- PSRR:
- 60dB ~ 50dB (1kHz ~ 10kHz)
- 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-DSBGA (1.56x1.56)
LP3986TL-2525/NOPB FAQ
1.How can I place an order for LP3986TL-2525/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP3986TL-2525/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 LP3986TL-2525/NOPB reliable?
The price and inventory of LP3986TL-2525/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP3986TL-2525/NOPB is usually 5 days.
3.What payment methods are accepted for LP3986TL-2525/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP3986TL-2525/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP3986TL-2525/NOPB?
LP3986TL-2525/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP3986TL-2525/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 LP3986TL-2525/NOPB?
For technical support, including LP3986TL-2525/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP3986TL-2525/NOPB requirements.
6.How does Aetrix verify that LP3986TL-2525/NOPB is sourced from the original manufacturer or authorized distributors?
All LP3986TL-2525/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 LP3986TL-2525/NOPB meets industry standards.
7.What is the process for return or replacement of LP3986TL-2525/NOPB?
All LP3986TL-2525/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP3986TL-2525/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 LP3986TL-2525/NOPB part is unused and in its original packaging.
Return procedure for LP3986TL-2525/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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