Microchip Technology MIC2133 Synchronous Buck Controller

Microchip Technology MIC2133 Synchronous Buck Controller
Microchip Technology MIC2133 Synchronous Buck Controllers are constant on-time controllers with a unique adaptive on-time control architecture. The device supports HyperLight Load and phase cut functions. The MIC2133 operates within the input supply voltage range of 8V--75V. The output voltage is adjustable to 0.6V with guaranteed ±1% accuracy at the FBS pin. The device's programmable switching frequency ranges from 100kHz to 1MHz.
characteristic
Input voltage range: 8V--75V
When the external power supply VDD=5V, the input is as low as 2V
Adjustable Output Voltage Range: 0.6V to 28V
Adaptive Constant On-Time Control

Any Capacitor Stability
0.6V internal reference with ±1% accuracy
Ripple injection from the third node to support duty cycle over 50%
HyperLight Load® and automatic phasing
Ability to connect an external MCU
Precise phase-to-phase current equalization
Precise 180° phase output
Switching frequency per phase: 100kHz to 1MHz
High Voltage Internal 5V LDO for Single Supply Operation
Secondary LDO for improved system efficiency
Supports pre-biased output startup
Remote sense amplifier for precise output regulation
Voltage Drop Characteristics, Supports Adaptive Voltage Positioning (AVP) for Improved Load Transient Response
Precision Enable for Low Standby Current
Externally programmable soft-start for reduced inrush current
Lossless RDSON current sensing using NTC temperature compensation or resistor sensing methods
Programmable Current Limit and Hiccup Mode Short-Circuit Protection
Thermal Shutdown with Hysteresis
Junction temperature range: -40°C--+125°C
Compact 5mm x 5mm 32-pin VQFN package
AEC-Q100 qualified (VAO suffix)
application
Distributed Power System
Communication/Network Infrastructure
Printers, Scanners, Graphics and Video Cards
FPGA, CPU, memory, GPU core power supply
Automotive POL