EE Product News

DC/DCs Include Reverse Polarity Protection

The MAX1832/1833/1834/1835 are step-up converters with complete reverse battery protection that protects both the device and the load when the battery is reversed. They feature a built-in synchronous rectifier, which allows for over 90% efficiency and eliminates the need for an external Schottky diode.
These step-up converters operate from a 1.5V to 5.5V input voltage range and deliver up to 150 mA of load current. The MAX1833/1835 have a fixed 3.3V output, and the MAX1832/1834 have adjustable outputs from 2V to 5.5V. In shutdown, the MAX1832/1833 connects the battery input to the voltage output, allowing the input battery to be used as a backup or real-time clock supply when the converter is off. Available in miniature six-pin SOT23 packages, prices start at $1.52 each/1,000.


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