MIC26601 Datasheet | Micrel Semiconductor

.Data Sheet.co.kr 28V, 6A Hyper Speed Control™ Synchronous DC/DC Buck Regulator Super Switcher II™ General Description The Micrel MIC26601 is a constant-frequency, synchronous buck regulator featuring a unique adaptive on-time control architecture. The MIC26601 operates over an input supply range of 4.5V to 28V and provides a regulated output of up to 6A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%, and the device operates at a switching frequency of 600k Hz. Micrel’s Hyper Speed Control™ architecture allows for ultrafast transient response while reducing the output capacitance and also makes (High VIN)/(Low VOUT) operation possible. This adaptive t ON ripple control architecture bines the advantages of fixed-frequency operation and fast transient response in a single device. The MIC26601 offers a full suite of protection Features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, foldback current limit, “hiccup mode” shortcircuit protection and thermal shutdown. An open-drain Power Good (PG) pin is provided. All support documentation can be found on Micrel’s web site at: .micrel.. Features - Hyper Speed Control™ architecture enables - High Delta V operation (VIN = 28V and VOUT = 0.8V) - Small output capacitance 4.5V to 28V voltage input 6A output current capability, up to 95% efficiency Adjustable output from 0.8V to 5.5V ±1% feedback accuracy Any Capacitor™ stable - zero-to-high ESR 600k Hz switching frequency No external pensation Power Good (PG) output Foldback current-limit and “hiccup mode” short-circuit protection Supports safe startup into a pre-biased load - 40°C to +125°C junction temperature range 28-pin 5mm × 6mm MLF® package - - - - - - - - - - - - Applications - - - - Distributed power systems munications/networking infrastructure...