LT1317CS8#PBF

LT1317 is a micropower, fixed frequency step-up DC/DC converter that operate over a wide input voltage range of 1.5V to 12V. It features automatic shifting to power saving Burst Mode™ operation at light loads. High efficiency is maintained over a broad 300µA to 200mA load range. Peak switch current during Burst Mode operation is kept below 250mA for most operating conditions which results in low output ripple voltage, even at high input voltages. It contain an internal low-battery detector with a 200mV reference that stays alive when the device goes into shutdown. It is used in application such as cellular telephones, cordless telephones, pagers, GPS receivers, battery backup, portable electronic equipment, glucose meters, diagnostic medical instrumentation etc.

• Quiescent current is 100µA typical
• Switching frequency is 620KHz typical
• Starts into full load, low-battery detector active in shutdown
• Low VCESAT switch is 300mV typical at 500mA
• Feedback voltage is 1.24V typical
• Maximum duty cycle is 85% typical
• Switch current limit is 800mA typical at (VIN = 2.5V, duty cycle = 30%)
• Switching frequency is 620KHz typical
• Operating temperature is 0°C to 70°C (commercial)
• Package style is 8-lead NSOIC

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party