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 BUCK ADJ 350MA 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.2V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.21V
- Voltage - Output (Max)：25V
- Current - Output：350mA
- Frequency - Switching：200kHz ~ 2.25MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x2)
Download product information
Overview
The LT3970EDDB#TRPBF is a monolithic buck switching regulator from Analog Devices Inc. It accepts an input voltage range of 4.2V to 40V and delivers a maximum output current of 350mA. The device features an adjustable switching frequency ranging from 200kHz to 2.2MHz. Quiescent current consumption is specified at 1.8µA, with a shutdown supply current of 1.7µA. It utilizes a 10-lead DFN package (DD) with an exposed pad for thermal dissipation.
Feature Summary
- Integrates power switch and catch diode in a compact surface-mount package
- Supports wide input voltage range up to 40V
- Features low quiescent current for battery-powered applications
- Includes internal boost diode for operation with low output voltages
Applications
- Battery-powered portable equipment
- Industrial control systems
- Automotive electronics
- Point-of-load regulation modules
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'E' grade designation corresponds to industrial temperature specifications (-40°C to +125°C). Ensure compatibility with the 10-DFN footprint during PCB layout. Check current distributor availability as stock levels fluctuate.
Selection Notes
Select this component for designs requiring high input voltage tolerance with minimal static power drain. The adjustable frequency allows optimization for efficiency or external component size. Verify that the required output voltage falls within the supported range relative to the feedback pin reference. Consider thermal performance given the small package size under load.
Part Context
This part belongs to the LT3970 family of micropower step-down DC/DC converters. It shares core architecture with variants like LT3970IDDB and LT3970EMS but differs in package type and temperature rating. The DDB suffix specifically denotes the 3mm x 2mm DFN package configuration.
Replacement Considerations
LT3970IDDB#TRMPBF offers identical electrical characteristics in the same package format. LT3970IMS#PBF provides similar functionality in a MSOP-10 package. Verify pinout compatibility before substituting across different package types.
