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40V USB Type-C Power Delivery Buck-Boost Controller
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LT8253/LT8253A
40V USB Type-C Power Delivery
Buck-Boost Controller
FEATURES DESCRIPTION Single Output Supports 1 Type-C Port Up to 100W
n Wide Input Range: 4V to 40V
n Synchronous Switching: Up to 98% Efficiency
n ±1.5% Output Voltage Regulatio Proprietary Low EMI Buck-Boost Architecture
n Adjustable Switching Frequency with External
Synchronization and Spread Spectrum
n Overcurrent, Overvoltage, Short-Circuit Protectio 28-Lead Side Solderable QFN Package
n AEC-Q100 Qualification in Progress The LT®8253/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. n All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION
VIN
SW1
BST1 LSP LSN SW2
BST2 BG1 BG2 TG1 TG2 VIN VOUT
GND ADI …
