Product Overview
Selection Positioning
KD4644BJG3 is a wide-temperature high-reliability power device with adjustable output, parallel current sharing and fast transient response for processor, FPGA and system rails.
Input Range4V to 14V
Output Range0.6V to 5.5V adjustable
Output Capability4A per channel, up to 16A with 4-channel parallel operation
Control ModeCurrent-mode control, 1MHz switching frequency, external frequency sync
ProtectionOver-current, over-temperature, soft-start and output-voltage tracking
PackageCeramic hermetic package
Key Features
- Parallel current sharing supports core rails that require higher output current and transient response.
- Wide input range, adjustable output and synchronization simplify system power-architecture planning.
- Total-dose and single-event test data can be discussed for high-reliability projects when required.
Typical Applications
- FPGA/SoC core rails, communications equipment power rails, industrial control and wide-temperature high-reliability power systems.
- Design-in should confirm input bus, output voltage/current, parallel mode, thermal design, ripple and transient-load conditions.
Design-in Notes
- Confirm host processor, FPGA or SoC interface support, voltage rails and package footprint constraints.
- Before sample design-in, share schematic, PCB stack-up, clock/reset design, power sequencing and replacement part information.
- For replacement projects, provide the original part number, operating temperature, speed grade, package constraints and lifecycle requirement.
Selection Support
For platform compatibility, replacement review, temperature range, package constraints or document status, please submit the target platform, expected volume and project phase. Kangda sales and FAE teams can follow up with that context.