LT8708IUHG 80V Synchronous 4-Switch Buck-Boost DC/DC Controller with Bidirectional Energy Transfer

The LT8708IUHG is a high-performance buck-boost switching regulator controller that operates from an input voltage that can be above, below, or equal to the output voltage. This single-inductor, four-switch synchronous buck-boost converter supports bidirectional energy transfer (discharge power supply + regenerative charging) and serves as the core control chip for humanoid robot joint power supply systems.

• Single inductor allows VIN above, below, or equal to VOUT
• Six independent forms of regulation
• VIN current (forward and reverse)
• VOUT current (forward and reverse)
• VIN and VOUT voltage regulation
• Forward and reverse discontinuous conduction mode supported
• Supports MODE and DIR pin changes while switching
• VINCHIP range 2.8V (requires EXTVCC > 6.4V) to 80V
• VOUT range: 1.3V to 80V
• Synchronous rectification: up to 99% efficiency

• Humanoid robot systems
• High voltage buck-boost converters
• Bidirectional charging systems
• Automotive 48V systems

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A: We can ship stock parts within 5 working days. For items not in stock, we will confirm the lead time based on your order quantity.