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 5V 350MA 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：4.2V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- 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 LT3970IDDB-5#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 4.2V to 40V and provides a fixed output voltage of 5V at a maximum current of 350mA. The device features an adjustable switching frequency from 200kHz to 2.2MHz and consumes only 1.8µA of quiescent current in standby mode. It is housed in a 10-lead DFN package and supports operation temperatures from -40°C to +125°C.
Feature Summary
- Integrates high-side and low-side power switches for efficient step-down conversion without requiring external diodes.
- Supports wide input voltage ranges suitable for industrial and automotive applications.
- Features adjustable switching frequency to optimize efficiency and minimize external component size.
Applications
- Industrial control systems
- Automotive electronics
- Battery-powered equipment
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the part number matches the exact electrical specifications required for the design, as variations exist within the LT3970 family regarding output voltage and package type.
Selection Notes
Select this component for designs requiring a compact solution with low standby current. The fixed 5V output simplifies biasing requirements compared to adjustable variants. Consider the thermal performance of the DFN package under load conditions. Verify that the required switching frequency falls within the supported range for optimal inductor selection.
Part Context
This part belongs to the LT3970 family of synchronous buck regulators designed for high efficiency and low noise. It shares core architecture with other variants like the LT3970IDB-3.3 but differs in fixed output voltage and package style. The family targets applications needing reliable power management in space-constrained environments.
Replacement Considerations
LT3970IDDB-3.3#TRMPBF offers similar topology with a 3.3V output. LT3970EMS-5#TRPBF provides the same 5V output but in an MSOP-10 package. Cross-reference datasheets for pinout compatibility and thermal characteristics before substitution.
