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MT3499 4.0V-30V Input, 3A, COT Synchronous Step-Down Converter

MT3499 is a constant on-time mode
synchronous buck converter. The main control
loop of MT3499 uses the COT mode for control
that provides a fast transient response without
the need for external compensation
components. Under a 1.2V output, the transient
value from 0 to 3A is merely 53mV. The
constant on-time control technology enables
seamless transition between the PWM mode
under higher load conditions and operation at
light loads, allowing MT3499 to maintain high
efficiency in light load situations. MT3499 operates from 4V to 30V VIN
input. The output voltage can be programed
within the range of 0.923V to 6V. Internally, it
features functions such as soft start, over-temperature protection, under-voltage
protection, and cycle-by-cycle current limiting.

FEATURES
 COT Control Mode
 Fast Transient Response
 500KHz Pseudo-fixed Frequency
Operation (5V Output)
 3A Output Current
 4V to 30V Input Voltage Range
 0.923V Reference
 0.923V to 6V output Voltage Range
 Integrated internal compensation
 Stable with Low ESR Ceramic Output
Capacitors
 Over Current Protection with
Hiccup-Mode
 Thermal Shutdown
 Inrush Current Limit and Soft Start
 Available in ESOP8 Package
 -40°C to +85°C Temperature Range
APPLICATIONS
 Distributed Power System
 Security Equipment
 Flat Panel Television and Monitors
 Smart Home
 Industrial Power Systems