General Description
The MIC24046 is a pin-programmable, high-efficiency,
wide input range, 5A synchronous step-down regulator.
The MIC24046 is perfectly suited for multiple-voltage
rail application environments typically found in computing
and telecommunication systems.
It can be programmed by pin strapping various parameters,
such as output voltage, switching frequency, and
current-limit values. The pin-selectable switching frequency,
valley-current mode control technique,
high-performance error amplifier, and external compensation
allow for the best trade-offs between high
efficiency and the smallest possible solution size.
The MIC24046 is available in a thermally efficient,
space-saving, 20-lead 3 mm × 3 mm VQFN package
with an operating junction temperature range of –40°C to +125°C.

Features
• 4.5V to 19V Input Voltage Range
• 2.5V to 19V Power Stage Input Voltage Range
with VDDA Externally Applied
• 5A (Maximum) Output Current
• High Efficiency (>90%)
• Pin-Selectable Output Voltages:
- 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, 2.5V,
and 3.3V
• ±1% Output Voltage Accuracy
• Supports Safe Start-Up with Pre-Biased Output
• Pin-Selectable Current Limit and Switching Frequency
• Internal Soft-Start and Thermal Shutdown Protection
• Hiccup-Mode Short-Circuit Protection
• Available in a 20-lead 3 mm × 3 mm VQFN Package
• –40°C to +125°C Junction Temperature Range

Applications
• Servers, Data Storage, Routers, and Base Stations
• FPGAs, DSP, and Low-Voltage ASIC Power