MIC24052
12V, 6A High-Efficiency Buck Regulator
with HyperLight LoadВ®
Features General Description HyperLight LoadВ® Efficiency: up to 80% at 10 mA Hyper Speed ControlВ® Architecture Enables:
-High Delta V Operation (VIN = 19V and VOUT
= 0.8V)
-Small Output Capacitance 4.5V to 19V Input Voltage Range 6A Output Current Capability Up to 95% Efficiency Adjustable Output from 0.8V to 5.5V ±1% Feedback Accuracy Any Capacitor Stable -Zero-to-High ESR 600 kHz Switching Frequency Power Good (PG) Output Foldback Current-Limit and “Hiccup Mode”
Short-Circuit Protection Supports Safe Start-Up into a Pre-Biased Load –40°C to +125°C Junction Temperature Range Available in a 28-pin 5 mm x 6 mm QFN Package The MIC24052 is a constant-frequency, synchronous
DC/DC buck regulator featuring a unique adaptive
on-time control architecture. The MIC24052 operates
over an input supply range of 4.5V to 19V. It has an
internal linear regulator which provides a regulated 5V
to power the internal control circuitry. The MIC24052
operates at a constant 600 kHz switching frequency in
continuous-conduction mode and can be used to
provide up to 6A of output current. The output voltage
is adjustable down to 0.8V.
Microchip’s HyperLight Load® architecture provides
the same high-efficiency and ultra-fast transient
response as the Hyper Speed ControlВ® architecture
under medium to heavy loads, but also maintains high
efficiency under light load conditions by transitioning to
variable-frequency, discontinuous-mode operation. …