HT8118A is a wide input voltage, high efficiency CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. HT8118A provides up to 3.5A output current at 125kHz switching frequency.
HT8118A provides OVP pin for output over voltage protection.
Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. The devices are available in a SOP-8EP package and require very few external devices for operation.
• 42V Input Voltage Surge
• 40V Steady State Operation
• Up to 3.5A output current
• Output Voltage 2.5V to 8.5V
• Resistor Programmable
. Current Limit from 1.5A to 3.5A
. Cable Compensation from 0Ω to 0.4Ω
• 10% CC Accuracy
. Compensation of Input /Output Voltage Change
. Temperature Compensation
• 2% Feedback Voltage Accuracy
• Up to 94% Efficiency
• 125kHz Switching Frequency Eases EMI Design
• Advanced Feature Set
. Integrated Soft Start
. Thermal Shutdown
. Protection Against Shorted ISET Pin
• The COT technology improves load transient response.
• SOP-8EP Package
• Long -waiting-time hiccup mode
