TPS54332DDAR Integrated Circuit Chip 3.5V to 28V Input 3.5A 1MHz Step-Down Buck Converter with Eco-Mode

The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates a low-R_DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-mode feature is automatically activated. The 1-µA shutdown supply current makes it suitable for battery-powered applications. Current mode control with internal slope compensation simplifies external compensation calculations and reduces component count while allowing the use of ceramic output capacitors.

A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in overload conditions. The TPS54332 is available in an 8-pin SOIC PowerPAD integrated circuit package.

• 3.5-V to 28-V input voltage range
• Adjustable output voltage down to 0.8 V
• Integrated 80-mΩ high-side MOSFET supports up to 3.5-A continuous output current
• High-efficiency at light loads with pulse-skipping Eco-mode
• Fixed 1-MHz switching frequency
• Typical 1-µA shutdown quiescent current
• Adjustable slow-start limits inrush currents
• Programmable UVLO threshold
• Overvoltage transient protection
• Cycle-by-cycle current limit, frequency foldback and thermal shutdown protection
• Available in thermally enhanced, 8-pin SOIC PowerPAD™ integrated circuit package
• Use TPS62933 for a 30 VIN converter with higher frequency, lower IQ, and improved EMI

• Consumer applications such as set-top boxes, CPE equipment, LCD displays, peripherals, and battery chargers
• Industrial and car audio power supplies
• 5-V, 12-V and 24-V distributed power systems

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A: We can ship stock parts within 5 working days. If without stock, we will confirm lead time for you based on your order quantity.