Buck chip ZCC2451 ZCC2459

Alternatively MP2451 ZCC2451 is 36V, 0.6A Step-Power
Overview:
ZCC2451 is an internally integrated high-side high-frequency high-voltage power MOSFET tube (2 MHz) step-down switching regulator. Providing high efficiency single 0.6A maximum output current mode control in a manner to achieve fast loop response. Wide input voltage range (3.3 V to 36 V) may be implemented for various applications buck power conversion at the input mobile environment. Shutdown quiescent current of 1uA suitable for battery-powered applications occasions. Under light load conditions, the switching frequency is decreased by reducing the switching losses and gate drive, to achieve high power conversion efficiency over a wide load range. Frequency folding technique helps prevent inductor current runaway during startup. Thermal shutdown provide reliable, fault tolerant operation. Circuit package SOT23-6L.
Features:
• quiescent current of 230uA work
• 3.3 V to 36 V wide operating voltage range
• 500mΩ internal power of the MOSFET
• 2 MHz fixed switching frequency
• Internal compensation
• ceramic output capacitor regulator
• Internal soft-start
precision current limit sense resistor • None
•> 90% efficiency
• adjustable output from + 0.8 V to Vin X 0.8
• low current shutdown mode: <1uA
applications:
• high-voltage power conversion system • • automotive industry power system
• • distributed power system battery powered system