Part Number: EV71S00A
EV71S00A MIC21LV32 Evaluation Board
Input voltage range: 4.5V to 36V
Adjustable output from 0.6V to 28V
Adaptive Constant on Time Control
➢ High Delta V operation
➢ Any Capacitor™ Stable
0.6V Internal reference with ±1% accuracy
Operates in CCM, Stackable for Multiphase Operation up to Eight Phases
Ripple injection from third node which allows greater than 50% duty cycles
hyperlight load and phase shedding
Automatic Phase Shedding with User Settable Thresholds or externally controlled phase shedding for the slave
Accurate Current balancing between phases
Accurate phasing between phases which are always 180o out of phase
100 KHZ to 800KHZ switching Frequency per phase
High Voltage Internal 5V LDO for single supply operation
Secondary LDO to improve system efficiency
Supports start up to pre-bias output
Remote sense amplifier for tight output regulation
Supports Adaptive voltage positioning (AVP) or Droop
Precision Enable function for low stand-by current
External programmable soft start to reduce inrush current
Programmable current limit and hiccup short circuit protection
Overview
The MIC21LV32 is a constant on-time, dual phase synchronous buck controller featuring a unique adaptive on-time control architecture with stackable feature up to eight phases. The MIC21LV32 operates over an input supply range from 4.5V to 36V and can be used to supply up to 50A of output current/phase. The output voltage is adjustable down to 0.6V with an ensured accuracy of ±1%. The device operates with programmable switching frequency from 100 kHz to 1 MHz per phase.