LT8253

RECOMMENDED FOR NEW DESIGNS

40V USB Type-C Power Delivery Buck-Boost Controller

Analog Devices LT8253 Product Info

10 February 2026 6

Features

Proprietary Low-EMI Buck-Boost Architecture
Wide Input Range: 4V to 40V
Synchronous Switching: Up to 98% Efficiency
±1.5% Output Voltage Regulation
Single Output Supports 1 Type-C Port Up to 100W
Output Channel Enable Function

Programmable Switching Frequency with External Synchronization and Spread Spectrum
Overcurrent, Overvoltage, Short-Circuit Protection
Available in 28-Lead Side Solderable QFN Package
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LT8253/LT8253A are synchronous 4-switch buck-boost controllers optimized for automotive USB-C power delivery. The LT8253/LT8253A are fully compliant to the USB Power Delivery (PD) specification when used in conjunction with a USB Type-C or PD port controller. The output voltage slew rate can be controlled through the FB pin. The LT8253 can deliver up to 100W output power with 98% peak efficiency when running below the AM band. The LT8253A can deliver up to 60W output power with 95% peak efficiency when running above the AM band.

The LT8253/LT8253A support single buck-boost output for 1 Type-C port with power good flag. Over-current, over-voltage, and short-circuit protections are also available.

APPLICATIONS

Automotive USB-C Power Delivery
General Purpose Voltage Regulator

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