MIC45205 Series
26V/6A Synchronous Step Down Regulator Power Module w/Hyper Light Load™, Hyper Speed Control™
Manufacturer: Microchip Technology
Catalog
26V/6A Synchronous Step Down Regulator Power Module w/Hyper Light Load™, Hyper Speed Control™
Key Features
• * No compensation required
• * Up to 6A output current
• * >93% peak efficiency
• * Output voltage: 0.8V to 85% of VIN with ±1% accuracy
• * Adjustable switching frequency from 200kHz to 600kHz
• * Enable input and open-drain power good output
• * Hyper Speed Control (MIC45205-2) architecture enables fast transient response
• * HyperLight Load (MIC45205-1) improves light load efficiency
• * Supports safe startup into pre-biased output
• * CISPR22, Class B compliant
• * –40°C to +125°C junction temperature range
• * Thermal-shutdown protection
• * Short-circuit protection with hiccup mode
• * Adjustable current limit
• * Available in 52-pin 8mm × 8mm × 3mm QFN package
Description
AI
MIC45205 is a synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC-to-DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package; simplifying the design and layout process for the end user.
This highly-integrated solution expedites system design and improves product time-to-market. The internal MOSFETs and inductor are optimized to achieve high efficiency at a low output voltage. The fully-optimized design can deliver up to 6A current under a wide input voltage range of 4.5V to 26V, without requiring additional cooling.
The MIC45205-1 uses HyperLight Load® (HLL) MIC45205-2 uses Hyper Speed Control™ architecture which enables ultra-fast load transient response, allowing for a reduction of output capacitance. The MIC45205 offers 1% output accuracy that can be adjusted from 0.8V to 85% of VIN with two external resistors. Additional features include thermal shutdown protection, input undervoltage lockout, adjustable current limit, and short circuit protection. The MIC45205 allows for safe start-up into a pre-biased output.