Features: · 2.5A Output Current· Up to 95% Efficiency· 4.5V to 32V Input Range· 6µA Shutdown Supply Current· 410kHz Switching Frequency· Adjustable Output Voltage· Cycle-by-Cycle Current Limit Protection· Thermal Shutdown Protection· Internal Soft Start Function· Frequency Fold Back at Short...
ACT4075: Features: · 2.5A Output Current· Up to 95% Efficiency· 4.5V to 32V Input Range· 6µA Shutdown Supply Current· 410kHz Switching Frequency· Adjustable Output Voltage· Cycle-by-Cycle Current Limit...
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PARAMETER | VALUE | UNIT |
IN to G EN to G SW to G BS to SW FB, COMP to G Continuous SW Current Junction to Ambient Thermal Resistance (JA) Maximum Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 sec) |
-0.3 to +34 -0.3 to VIN + 0.3 -1 to VIN + 1 -0.3 to +8 -0.3 to 6 Internally limited 46 1.8 -40 to 150 -55 to 150 300 |
V V V V A °C/W W °C °C °C V |
The ACT4075 is a current-mode step-down DC/DC converter that generates up to 2.5A output current at 410kHz switching frequency. The device utilizes Active-Semi's proprietary ISOBCD30 process for operation with input voltage up to 32V.
Consuming only 6A in shutdown mode, the ACT4075 is highly efficient with peak efficiency at 95% when in operation. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency fold back at short circuit. The device also includes an internal soft start function to prevent overshoot.
The ACT4075 is available in SOP-8/EP exposed pad package and requires very few external devices for operation.