Micrel, Inc. Supplier Page

MIC2164 Buck Regulator

Micrel, Inc. and Digi-Key introduce buck controller with adaptive on-time control

Micrel, Inc.'s MIC2164/-2/-3 is a synchronous, digital modified, constant on-time pulse-width modulation (PWM) buck controller family. MIC2164 is the first product in the new Hyper Speed Control™ family of buck controllers introduced by Micrel. These controllers are targeted for cost sensitive applications requiring high performance such as set-top boxes, gateways, routers, computing peripherals, and telecom/networking equipments.

The MIC2164/-2/-3 family operates over an input supply range of 3V to 28V, and is independent of the IC supply voltage. The MIC2164/-2/-3 family is capable of supplying 25A output current. The MIC2164 operates at 300kHz, the MIC2164-2 operates at 600kHz, and the MIC2164-3 operates at 1MHz.
MIC2164 Buck Regulator

  • Hyper Speed Control™ architecture enables
  • 3V to 28V input voltage
  • 25A output current capability
  • 300kHz/600kHz/1MHz switching frequency
  • Constant on-time mode control
  • Output down to 0.8V with ±1% FB accuracy
  • Up to 95% efficiency
  • Foldback current limit and “hiccup” mode
    short-circuit protection
  • All N-Channel MOSFET design
  • No current-sense resistor needed

Digi-Key Part Number Manufacturer Part Number Description Package Type Datasheet
576-3466-5-ND MIC2164YMM ctlr pwm buck 300khz 10-MSOP 10-MSOP, Micro10™ , 10-uMAX, 10-uSOP Datasheet

*Click here for MIC2164YMM Diagram