MIC2164/-2/-3/C
Synchronous Buck Controllers featuring
Adaptive On-Time Control 28V Input,
Constant Frequency
Hyper Speed Controlв„ў Family General Description
The Micrel MIC2164/-2/-3/C are constant-frequency,
synchronous buck controllers featuring adaptive on-time
control. The MIC2164/-2/-3/C are the first products in the
new Hyper Speed Controlв„ў family of buck controllers
introduced by Micrel.
The MIC2164/-2/-3/C controllers operate over an input
supply range of 3V to 28V, and are independent of the IC
supply voltage. The devices are capable of supplying 25A
output current. While the MIC2164 operates at 300kHz,
the MIC2164-2 operates at 600kHz, and the MIC2164-3
operates at 1MHz.
A unique Hyper Speed Control architecture allows for
ultra-fast transient response while reducing the output
capacitance and also makes High VIN/Low VOUT
operation possible. The MIC2164/-2/-3/C controllers
utilizes an architecture which is adaptive TON ripple
controlled. A UVLO feature is provided to ensure proper
operation under power-sag conditions to prevent the …