DESCRIPTION

· The MIC2127A is a constant-frequency synchronous buck controller with an adaptive on-time control architecture.

· It operates over an input voltage range of 4.5V to 75V and provides an adjustable output voltage from 0.6V to 30V with ±1% accuracy.

· The device features a programmable switching frequency from 270 kHz to 800 kHz and includes a MODE pin for selecting Continuous Conduction mode or HyperLight Load (HLL) mode.

· It supports safe start-up into a prebiased output and includes a power good signal (PG) for power supply sequencing.

· The MIC2127A is available in a 16-pin 3 mm × 3 mm VQFN package with an operating junction temperature range from –40°C to +125°C.

FEATURES

· Hyper Speed Control® Architecture for high input to output voltage conversion ratio and ultra-fast load transient response.

· Wide input voltage range of 4.5V to 75V and adjustable output voltage down to 0.6V.

· Built-in 5V regulator for single-supply operation and auxiliary bootstrap LDO for improved system efficiency.

· Selectable light load operating mode, enable input, and power good output.

· Programmable current limit, hiccup mode short-circuit protection, soft start, internal compensation, and thermal shutdown.

· AEC-Q100 qualified for automotive applications.

APPLICATIONS

· Networking and telecom equipment.

· Base stations and servers.

· Distributed power systems.

· Industrial power supplies.

· Automotive power supplies.