MIC28303
50V, 3A Power Module
Features General Description Easy to Use
-Stable with Low-Equivalent Series Resistance
(ESR) Ceramic Output Capacitor
-No Inductor and No Compensation to
Choose 4.5V to 50V Input Voltage Single-Supply Operation Power Good (PG) Output Low Radiated Emission (EMI) per EN55022, Class B Adjustable Current Limit Adjustable Output Voltage from 0.9V to 24V (Also
Limited by Duty Cycle) 200 kHz to 600 kHz, Programmable Switching
Frequency Supports Safe Start-Up into a Prebiased Output –40°C to +125°C Junction Temperature Range Available in 64-pin, 12 mm × 12 mm × 3 mm QFN
Package MIC28303 is synchronous step-down regulator
module, featuring a unique adaptive ON-time control
architecture. The module incorporates a DC/DC
controller, power MOSFETs, bootstrap diode, bootstrap
capacitor and an inductor in a single package. The
MIC28303 operates over an input supply range from
4.5V-50V and can be used to supply up to 3A of output
current. The output voltage is adjustable down to 0.8V
with an accuracy of В±1%. The device operates with
programmable switching frequency from 200 kHz-600
kHz.
The MIC28303-1 uses HyperLight LoadВ® architecture
for improved efficiency at light loads. The MIC28303-2
uses Hyper Speed ControlВ® for ultra-fast transient …