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MIC28515T-E/PHA
开关稳压器 75V/5A Hyper Speed Control Synchronous DC/DC Buck Regulator with External Mode Control
75V/5A Hyper Speed Control® Synchronous DC/DC Buck Regulator with External Mode Control
General Description MIC28515T-E/PHA
The MIC28515T-E/PHA MIC28515 is an adjustable frequency, synchronous buck regulator that features a unique adaptive on-time control architecture. The MIC28515 operates over an input supply range of 4.5V to 75V, and provides a regulated output of up to 5A of output current. The output voltage is adjustable down to 0.6V with an accuracy of ±1%.
Features MIC28515T-E/PHA
• Hyper Speed Control® Architecture Enables:
- High Input to Output Voltage Conversion
Ratio Capability (VIN = 75V and VOUT = 0.6V)
- Small Output Capacitance
• 4.5V to 75V Input Voltage
• 5A Output Current Capability with up to 95% Efficiency
• Adjustable Output Voltage from 0.6V to 32V
• Selectable HLL or CCM operation
• ±1% FB Accuracy
• Any Capacitor™ Stable:
- Zero-ESR to High-ESR Output Capacitors
• 270 kHz to 800 kHz Adjustable Switching Frequency
• Internal Compensation
• Built-In 5V Regulator for Single-Supply Operation
• Auxiliary Bootstrap LDO for Improving System
Efficiency
• Internal Bootstrap Diode
• Programmable Current Limit
• Hiccup Mode Short-Circuit Protection
• Thermal Shutdown
• Supports Safe Start-Up into a Prebiased Output
• –40°C to +125°C Junction Temperature Range
• Available in 32-Pin, 6 mm x 6 mm VQFN Package
MIC28515T-E/PHA
Microchip
0.6 V to 32 V
1 Output
5 A
270 kHz to 800 kHz