LT1302CN8#PBF

LT1302CN8#PBF is a micropower step-up DC/DC converter that maintains high efficiency over a wide range of output current. It operates from a supply voltage as low as 2V and feature automatic shifting between burst mode operation at light load, and current mode operation at heavy load. The internal low loss NPN power switch can handle current in excess of 2A and switch at frequencies up to 400KHz. Quiescent current is just 200µA and can be further reduced to 15µA in shutdown. Applications include notebook and palmtop computers, portable instruments, personal digital assistants, cellular telephones, flash memory.

• Burst Mode™ operation at light load
• Current mode operation for excellent line and load transient response
• Quiescent current is 200µA typical at (VSHDN = 0.5V, VFB = 1.3V, TA = 25°C)
• Offset voltage is 15mV typical at (TA = 25°C)
• Oscillator frequency is 220KHz typical at (TA = 25°C)
• Maximum duty cycle is 86% typical at (TA = 25°C)
• Switch on time is 3.9µs typical at (TA = 25°C)
• Switch current limit is 1A typical at (VC = 0.4V (burst mode operation))
• Error amplifier voltage gain is 75V/V typical at ( 0.9V ≤ VC ≤ 1.2V, ∆VC/∆VFB, TA = 25°C)
• Operating temperature range from 0°C to 70°C, 8-lead PDIP package

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