Analog Devices Inc. LTC3541EDD-2#PBF
- Part No.:
- LTC3541EDD-2#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC3541EDD-2#PBF.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10DFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,230
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Product details
Overview
LTC3541EDD-2#PBF from Analog Devices is a high-efficiency dual-output regulator combining a 500mA synchronous buck converter with a 300mA very-low-dropout linear regulator for compact portable electronics.
As part of the LTC3541-2 product family, LTC3541EDD-2#PBF combines the regulator architecture, package option, protection functions, and output configuration described in the datasheet. For engineers reviewing the LTC3541EDD-2#PBF datasheet, LTC3541EDD-2#PBF pinout, LTC3541EDD-2#PBF application, or LTC3541EDD-2#PBF equivalent, this device is widely used in handheld electronics, portable media devices, wireless modules, ASIC supplies, low-voltage logic rails, and compact dual-rail embedded power systems.
Technical Context
In embedded power systems, LTC3541EDD-2#PBF operates according to its datasheet-defined regulator topology and output structure, converting the input supply into the required local rail set for the target load.
The extracted parameters in the key specifications section define the practical design limits for input range, current capability, switching frequency, package, and protection behavior.
LTC3541EDD-2#PBF is commonly used when the specified rail count, package, and regulator function fit compact production power-tree requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Synchronous buck converter plus VLDO regulator. |
| Input Voltage Range | 2.7V to 5.5V. |
| Buck Output | 0.8V to 5V, up to 500mA. |
| VLDO Output | 0.4V to 4.1V, up to 300mA. |
| Switching Frequency | 2.25MHz. |
| Package | 10-lead 3mm x 3mm DFN. |
| Protection | Short-circuit and thermal protection functions. |
| Orderable Option | -2 suffix rail/startup option. |
Pinout & Package
The LTC3541EDD-2#PBF pinout includes supply, switch/output, feedback, enable/control, regulator output, and ground or exposed-pad functions matching its datasheet package.
For PCB design, switching loops should be compact, feedback nodes should avoid noisy copper, and output capacitors should be placed close to their regulator pins.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN | Input supply. |
| SW | Buck switch node. |
| BUCKFB | Buck feedback. |
| LVIN | VLDO input. |
| LVOUT | VLDO output. |
| LFB | VLDO feedback. |
| EN Pins | Rail enables. |
| GND | Ground and thermal return. |
Key Features
- 500mA buck output supports portable rails.
- 300mA VLDO adds a second low-dropout rail.
- 2.25MHz switching reduces passive size.
- DFN package saves PCB area.
- Fixed option supports known startup behavior.
- Protection functions improve reliability.
Applications
| Handheld Devices | Wireless Modules |
|---|---|
|
Use Scenario: Used in small battery products. IC Role: Provides two rails. Use Value: Saves board area. |
Use Scenario: Used around RF and digital circuitry. IC Role: Supplies buck and VLDO rails. Use Value: Improves rail integration. |
| ASIC Supplies | Portable Media |
|
Use Scenario: Used for core and I/O rails. IC Role: Generates sequenced dual outputs. Use Value: Supports compact power trees. |
Use Scenario: Used in audio/video devices. IC Role: Supplies logic and auxiliary rails. Use Value: Improves efficiency. |
Equivalent & Alternatives
When evaluating a LTC3541EDD-2#PBF equivalent, engineers should compare topology, input range, output current, output voltage configuration, package, protection behavior, and switching frequency.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3541EDD-1#PBF | Related startup/rail option in the same regulator family. | Used in similar dual-rail portable designs. | Compare startup behavior and output option. |
| TPS65001RUKT | TI buck-plus-LDO PMIC with different rail count and supervisor features. | Used in portable power systems. | Compare rail count, current, package, and supervisor need. |
Compared with LTC3541EDD-1#PBF, LTC3541EDD-2#PBF should be selected when its exact package and output configuration match the target board. LTC3541EDD-2#PBF vs TPS65001RUKT selection depends on current rating, rail count, package, and sourcing continuity.
Quality
LTC3541EDD-2#PBF should be sourced as original the original manufacturer components through traceable supply channels. Quality checks may include specified package inspection, top-mark validation, solderability testing, output-voltage verification, and regulator load testing.
Production validation should include startup behavior, load transients, thermal performance, protection response, output ripple, and PCB layout review for the switching and linear regulator sections.
Availability
LTC3541EDD-2#PBF available at Aetrix Electronics and is suitable for handheld electronics, portable media devices, wireless modules, ASIC supplies, low-voltage logic rails, and compact dual-rail embedded power systems requiring stable power-management component supply support.
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 package, output-voltage option, rail-current budget, lifecycle status, lead time, and sourcing continuity helps reduce procurement risk.
Manufacturer
Analog Devices is a global semiconductor manufacturer specializing in analog ICs, power management, mixed-signal products, data converters, RF solutions, sensors, and embedded signal-chain technologies for industrial, communication, automotive, healthcare, and consumer applications.
The LTC3541-2 product family is a power-management series for compact embedded regulator applications using the rail structure and package options defined in the datasheet.
FAQ
What is LTC3541EDD-2#PBF used for?
LTC3541EDD-2#PBF is used in handheld electronics, portable media devices, wireless modules, ASIC supplies, low-voltage logic rails, and compact dual-rail embedded power systems.
Where can I find the LTC3541EDD-2#PBF datasheet download?
The LTC3541EDD-2#PBF datasheet is available from the manufacturer or authorized distributor documentation and includes electrical ratings, package data, and application guidance.
What should be considered in LTC3541EDD-2#PBF pinout design?
Designers should place switching and output capacitors close to the IC, keep feedback routing quiet, and provide proper thermal copper.
What are common LTC3541EDD-2#PBF equivalent solutions?
Common candidates include LTC3541EDD-1#PBF and TPS65001RUKT depending on topology, output current, package, and voltage requirements.
How should LTC3541EDD-2#PBF be selected?
Selection should confirm output voltage configuration, package footprint, current rating, thermal design, and lifecycle status.
LTC3541EDD-2#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 2.25MHz
- Voltage/Current - Output 1:
- 0.8V ~ 5V, 500mA
- Voltage/Current - Output 2:
- 0.4V ~ 4.1V, 300mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 0.9V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC3541EDD-2#PBF FAQ
1.How can I place an order for LTC3541EDD-2#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3541EDD-2#PBF 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 LTC3541EDD-2#PBF reliable?
The price and inventory of LTC3541EDD-2#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3541EDD-2#PBF is usually 5 days.
3.What payment methods are accepted for LTC3541EDD-2#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3541EDD-2#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3541EDD-2#PBF?
LTC3541EDD-2#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3541EDD-2#PBF 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 LTC3541EDD-2#PBF?
For technical support, including LTC3541EDD-2#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3541EDD-2#PBF requirements.
6.How does Aetrix verify that LTC3541EDD-2#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3541EDD-2#PBF 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 LTC3541EDD-2#PBF meets industry standards.
7.What is the process for return or replacement of LTC3541EDD-2#PBF?
All LTC3541EDD-2#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3541EDD-2#PBF, 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 LTC3541EDD-2#PBF part is unused and in its original packaging.
Return procedure for LTC3541EDD-2#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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