ILC6383 - Fairchild Semiconductor

ILC6383 1-Cell to 3-Cell Boost DC-DC Converter with True Load Disconnect/ 3.3V/ 5V or Adjustable Output

The ILC6383 series of step-up DC-DC converters operate from 1-cell to 3-cell input. They are direct replacement for ILC6382, in applications where SYNC pin is not used. The PFM or PWM operating mode is user selectable through SEL pin connected to ground or left open, respectively. The choice should be dependent upon the current to be delivered to the load: P.

Features

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• Guaranteed start up in PWM at 0.9V input Synchronous rectification requires no external diode True load disconnect from battery input in shutdown Up to 75mA at 3.3V and 40mA at 5V from 1V input Up to 375mA at 3.3V and 300mA at 5V from 3V input Peak efficiency > 90% 1µA battery input current in shutdown (with VOUT = 0V) Internal Oscillator frequency: 300kHz to ±15% ILC6383: Fixed 3.3V or 5V output ILC6383-ADJ: Adjustable output to 6V maximum Low battery detector with 100ms transient rejection delay Powergood output flag when VOUT is in regulation Description The ILC6383 se.