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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear + Switching

Texas Instruments LM3686TLE-AADW/NOPB

Name: LM3686TLE-AADW/NOPB
Brand: Texas Instruments
SKU: LM3686TLE-AADW/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM3686TLE-AADW/NOPB

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - Linear + Switching

Package:: 12-WFBGA, DSBGA

Datasheet:: LM3686TLE-AADW/NOPB.pdf

Description:: IC REG TRPL BUCK/LNR SYNC 12USMD

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Product details

Overview

LM3686TLE-AADW/NOPB from Texas Instruments is a triple-output portable power-management IC combining a synchronous step-down DC-DC converter, a very-low-dropout post linear regulator, and a low-noise LDO regulator. The device is optimized for ultra-low-voltage circuits that require efficient conversion and clean secondary rails from a single Li-ion or three-cell NiMH/NiCd battery input.

As part of the TI LM3686 family, LM3686TLE-AADW/NOPB provides a 600mA buck output, 300mA LILO post-regulator output, 350mA low-noise LDO output, 3MHz switching, automatic PWM/PFM mode transition, and a 12-pin DSBGA package. For engineers reviewing the LM3686TLE-AADW/NOPB datasheet, LM3686TLE-AADW/NOPB pinout, LM3686TLE-AADW/NOPB application, or LM3686TLE-AADW/NOPB equivalent, this device is widely used in portable processors, battery-powered consumer devices, low-noise handheld electronics, wireless modules, compact multimedia products, and ultra-low-voltage embedded systems.

Technical Context

In battery-powered portable systems, LM3686TLE-AADW/NOPB operates as a three-output regulator where the 3MHz synchronous buck converter supplies the primary rail and the integrated linear regulators generate low-noise or post-regulated outputs for sensitive circuitry.

Automatic PWM/PFM mode switching improves efficiency across load conditions: PWM operation supports higher-current and lower-noise conversion, while PFM behavior reduces quiescent current during light-load standby operation.

LM3686TLE-AADW/NOPB is useful in compact handheld devices because the 12-pin DSBGA package and high switching frequency reduce the number and size of external components while still providing separate enable pins for the DC-DC, LILO, and LDO rails.

Key Specifications

Parameter	Value and Actual Design Meaning
Device Type	Step-down DC-DC converter with integrated post linear regulators and low-noise LDO.
Input Voltage Range	2.7V to 5.5V input range for Li-ion or three-cell NiMH/NiCd batteries.
DC-DC Output	600mA maximum load current with 1.2V to 2.5V output range.
LILO Output	300mA maximum load current with 0.7V to 2V output range.
LDO Output	350mA maximum load current with 1.5V to 3.3V output range.
Switching Frequency	3MHz typical PWM fixed switching frequency.
Low-Power Behavior	100uA typical quiescent current and 2.5uA typical shutdown current.
Package	12-pin DSBGA package, -30C to 85C operating temperature range.

Pinout & Package

The LM3686TLE-AADW/NOPB pinout includes battery input, buck switching/output functions, LILO and LDO output pins, three enable controls, and ground connections in a 12-pin DSBGA package.

For PCB design, the inductor and ceramic capacitors should be close to the package, while the low-noise LDO output capacitor should be routed for low impedance to preserve transient and noise performance.

Pin / Function	PCB Design and Circuit Role
VBATT	Battery input supply for the converter and regulator system.
SW	Buck switching node connected to the inductor.
VOUT_DCDC	Primary step-down DC-DC output rail.
VOUT_LILO	Very-low-dropout post linear regulator output.
VOUT_LDO	Low-noise linear regulator output.
EN_DCDC / EN_LILO / EN_LDO	Separate enable pins for independent rail control.
GND	Ground return for switching and linear regulator operation.

Key Features

Three outputs combine efficient conversion and low-noise linear regulation.
3MHz switching enables small external components.
Automatic PWM/PFM behavior improves efficiency across load range.
Separate enable pins support rail-level power control.
Low shutdown current supports battery-powered products.
DSBGA package supports very small portable layouts.

Applications

Portable Processors

Handheld Consumer Devices

Use Scenario: Used in battery-powered processor platforms.

IC Role: Supplies main, post-regulated, and low-noise rails.

Use Value: Supports compact multi-rail power design.

Use Scenario: Used in small multimedia and portable products.

IC Role: Generates efficient and clean supply rails from a Li-ion input.

Use Value: Improves battery runtime and PCB density.

Wireless Modules

Low-Noise Embedded Systems

Use Scenario: Used in compact communication devices.

IC Role: Provides regulated rails for logic and low-noise circuitry.

Use Value: Helps maintain supply quality in RF platforms.

Use Scenario: Used where analog or sensitive rails need cleaner regulation.

IC Role: Uses LDO outputs for noise-sensitive loads.

Use Value: Improves mixed-signal power integrity.

Equivalent & Alternatives

When evaluating a LM3686TLE-AADW/NOPB equivalent, engineers should compare input voltage, DC-DC current, LILO and LDO current, output-voltage options, package, enable behavior, and noise requirements.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM3687TL-1815/NOPB	Texas Instruments related portable regulator with step-down conversion and integrated LDO/startup behavior but a different output configuration.	Used in portable battery systems requiring buck plus LDO power rails.	Compare rail count, output voltages, current ratings, package, and startup behavior.
ADP2140	Analog Devices compact PMIC integrating a buck regulator and two LDO regulators with different current ratings and package options.	Used in portable and mixed-signal systems needing one switching rail plus clean LDO rails.	Compare voltage options, output current, package, quiescent current, and control pins.

Compared with LM3687TL-1815/NOPB, LM3686TLE-AADW/NOPB provides the LM3686 three-output regulator arrangement with LILO and low-noise LDO rails. LM3686TLE-AADW/NOPB vs ADP2140 selection depends on rail count, output-current budget, package, and low-noise regulator requirements.

Quality

LM3686TLE-AADW/NOPB should be sourced as original Texas Instruments components through traceable supply channels. Quality checks may include DSBGA package inspection, marking validation, solderability and assembly review, and electrical verification of all three outputs.

Production validation should include PWM/PFM transition behavior, output accuracy, LDO noise, load transients, startup sequencing, shutdown current, and thermal performance in the target layout.

Availability

LM3686TLE-AADW/NOPB available at Aetrix Electronics and is suitable for portable, wireless, consumer, and low-voltage embedded products requiring compact multi-output battery power.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming DSBGA assembly capability, output-voltage option, load-current budget, battery input range, lifecycle status, and sourcing continuity helps reduce procurement risk.

Manufacturer

Texas Instruments is a global semiconductor manufacturer specializing in analog ICs, embedded processors, power-management devices, interface products, sensing solutions, and industrial semiconductor technologies.

The LM3686 product family is a portable power-management series combining a synchronous buck converter, post linear regulator, and low-noise LDO for ultra-low-voltage battery-powered systems.

FAQ

What is LM3686TLE-AADW/NOPB used for?

LM3686TLE-AADW/NOPB is used for portable processors, handheld consumer devices, wireless modules, and low-noise embedded systems requiring three compact power rails.

Where can I find the LM3686TLE-AADW/NOPB datasheet download?

The LM3686TLE-AADW/NOPB datasheet is available from Texas Instruments and includes output ratings, package data, enable behavior, and application information.

What should be considered in LM3686TLE-AADW/NOPB pinout design?

Designers should place the inductor and capacitors close to the DSBGA package, route low-noise output paths carefully, and provide clean grounding for switching and linear rails.

Does LM3686TLE-AADW/NOPB have multiple outputs?

Yes. It provides a step-down DC-DC output, a post linear regulator output, and a low-noise LDO output.

What are common LM3686TLE-AADW/NOPB equivalent solutions?

Common candidates include LM3687TL-1815/NOPB and ADP2140 depending on rail count, output voltage, package, and noise requirements.

LM3686TLE-AADW/NOPB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 12-WFBGA, DSBGA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Topology:: Step-Down (Buck) Synchronous (1), Linear (LDO) (2)

Number of Outputs:: 3

Frequency - Switching:: 3MHz

Voltage/Current - Output 1:: 1.8V, 600mA

Voltage/Current - Output 2:: 1.2V, 350mA

Voltage/Current - Output 3:: 2.8V, 300mA

w/LED Driver:: No

w/Supervisor:: No

w/Sequencer:: No

Voltage - Supply:: 2.7V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 12-DSBGA

LM3686TLE-AADW/NOPB FAQ

1.How can I place an order for LM3686TLE-AADW/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LM3686TLE-AADW/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 LM3686TLE-AADW/NOPB reliable?

The price and inventory of LM3686TLE-AADW/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3686TLE-AADW/NOPB is usually 5 days.

3.What payment methods are accepted for LM3686TLE-AADW/NOPB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3686TLE-AADW/NOPB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM3686TLE-AADW/NOPB?

LM3686TLE-AADW/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM3686TLE-AADW/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 LM3686TLE-AADW/NOPB?

For technical support, including LM3686TLE-AADW/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3686TLE-AADW/NOPB requirements.

6.How does Aetrix verify that LM3686TLE-AADW/NOPB is sourced from the original manufacturer or authorized distributors?

All LM3686TLE-AADW/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 LM3686TLE-AADW/NOPB meets industry standards.

7.What is the process for return or replacement of LM3686TLE-AADW/NOPB?

All LM3686TLE-AADW/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3686TLE-AADW/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 LM3686TLE-AADW/NOPB part is unused and in its original packaging.

Return procedure for LM3686TLE-AADW/NOPB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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