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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 8DFN
- 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)：7.5V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：4.8V
- Voltage - Output (Max)：6V
- Current - Output：1.2A
- Frequency - Switching：1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x3)
- Grade：-
- Qualification：-
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Overview
The LT3653IDCB#TRPBF is a high-voltage input, 1.2A synchronous buck switching regulator designed for battery charger applications. It operates with an input voltage range of 7.5V to 30V and provides a regulated output current up to 1.2A. The device features programmable output current limiting to control system power dissipation and reduce power path component size. Packaged in an 8-lead DFN (HVSON) surface-mount package, it supports operation from -40°C to +125°C.
Feature Summary
- High-voltage input capability suitable for direct connection to USB or high-voltage sources
- Integrated 1.2A synchronous buck topology for efficient power conversion
- Programmable output current limit for precise power management and thermal protection
Applications
- Single-cell lithium-ion battery charging from USB inputs
- Battery charging solutions utilizing high-voltage DC inputs
- PowerPath control systems for battery-powered applications
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches Analog Devices Inc. specifications exactly. Ensure compatibility with required input voltage ranges and thermal management requirements for the target application environment before procurement.
Selection Notes
Select this component for designs requiring high-voltage input regulation and integrated battery charging functionality. The fixed 1.2A output current rating suits single-cell lithium applications. Consider the DFN package for space-constrained PCB layouts requiring robust thermal performance across industrial temperature ranges.
Part Context
This part belongs to the LT3653 series of high-voltage step-down regulators. It is distinct from other LT36xx family members by its specific input voltage window and integrated current limit features tailored for charger topologies. The IDCB designation specifies the industrial temperature grade and DFN package variant.
Replacement Considerations
LT3653IDCB#PBF is a tube-packaged version of the same electrical device. Cross-reference with LT3652HVIDD#PBF if higher current capacity or different battery chemistry support is required, noting differences in package and pinout.
