The CST2335 is synchronous converters with an input-voltage range of 6V to 30V. It has an integrated low-side switching FET that eliminates the need for an external diode which reduces component count. Efficiency is maximized through the integrated 85-mΩ and 60-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well regulated voltage reference that is 1.5% over temperature.Cycle-by-cycle current limiting on the high-side MOSFET protects the CST2335 in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current.Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

CST2335 Features:

Wide Input Voltage Range: 6V ~ 30V

3.5A output current capability

Fixed 500KHz Switching Frequency

Output Adjustable from 0.925V

Internal Soft start 

Built-in Over Current Limit 

No Schottky Diode Required

Under Voltage Protection

Over Voltage Protection

Over Current Protection 

Short Circuit Protection

Over Thermal Protection

Available in ESOP8 Package

-40°C to +85°C Temperature Range

CST2335 Application:

Automotive Systems 

Security Monitoring Camera

Network Terminal Equipment

Industrial Power Systems

CST2335 Application Circuits：

CST2335 Pin Configuration：

CST2335 Pin Description：

CST2335 Order Information：

Model	Marking	Description	Package	T/R Qty
CST2335	****	ST2335 Synchronous Step-Down Regulator; 30V,3.5A,500KHz, VFB 0.925V	ESOP-8	3,000 PCS

CST2335 Function Block Diagram：