ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG CTRLR BUCK 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：6V ~ 36V
- Frequency - Switching：200kHz ~ 1MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOP-EP
- Grade：-
- Qualification：-
Download product information
Overview
The LT3741EFE#PBF is a fixed frequency synchronous step-down DC/DC controller designed for high-power applications. It accurately regulates output current up to 20A with an input voltage range of 6V to 36V and an adjustable output voltage from 0V to 34V. Operating at a switching frequency of 1.07MHz, the device features a low static current of 1.8mA. It is housed in a 20-lead TSSOP package with an exposed pad, supporting surface mount installation across a temperature range of -40°C to +125°C.
Feature Summary
- Synchronous buck topology for efficient power conversion
- Accurate constant current regulation capability
- Integrated shutdown control functionality
Applications
- High-power LED driver circuits
- Battery charging systems
- General-purpose step-down power supplies
Procurement Notes
Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm that the specific suffix matches the required package variant. Ensure storage conditions comply with moisture sensitivity levels. Check for RoHS compliance documentation prior to integration into final assemblies.
Selection Notes
Select this controller when precise current regulation is required alongside standard voltage regulation. The 1.07MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider thermal management requirements due to the exposed pad design and potential high-current operation limits.
Part Context
This component belongs to the LT3741 family of synchronous step-down controllers. It shares functional similarities with the LT3741IFE-1#PBF but differs in switching frequency specifications. The series is optimized for applications demanding both constant voltage and constant current modes within a compact form factor.
Replacement Considerations
The LT3741EFE-1#PBF serves as a related variant within the same product line. Verify compatibility regarding switching frequency differences before substitution. Ensure pinout alignment and thermal performance characteristics match the original design requirements.
