The LM20133EVAL evaluation board is designed to evaluate the LM20133, a full featured buck switching regulator capable of driving up to 3A of load current. This device features a clock synchronization input that allows the switching frequency to be synchronized to an external clock source. The flexibility to synchronize the switching frequency from 500kHz to 1.5MHz allows the size of the power stage components to be reduced while still allowing for high efficiency. The LM20133 is capable of converting an input voltage between 2.95V and 5.5V down to an output voltage as low as 0.8V. Fault protection features include cycle by cycle current limit, output power good, and output over voltage protection. The dual function soft start/tracking pin can be used to control the start up response of the LM20133, and the precision enable pin can be used to easily sequence the LM20133 in applications with sequencing requirements.
- Input voltage range 2.95V to 5.5V
- Accurate current limit minimizes inductor size
- 97% peak efficiency
- Frequency synchronization pin
- 32mR integrated FET switches
- Starts up into pre biased loads
- Output voltage tracking
- Peak current mode control
- Adjustable soft start with external capacitor
- Precision enable pin with hysteresis
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