Aimtron Technology AT1397A
6-Channel DC-DC Converter
FEATURES
● 95% Efficient possible DC/DC Converter● Bulit-in LED Driver and Open LED Overvoltage Protection
● Transformerless Inverting Controller for CCD Bias
● 2 Channel Built-in MOSFET Current- Mode PWM and 4 Channel Extra PWM Controllers (CH-3 Synchronous Output)
● Up to 1MHz Operating Frequency
● Shutdown Current <1uA
● Built-in Soft-Start Function Built-in Short-Circuit Protection Function
● QFN48 Package
GENERAL DESCRIPTION
The AT1397A/B provide a complete power supply solution for digital cameras. They improve performance, component count, and size compared to other multi-channel controllers in 1-cell Li-Ion designs. On-chip MOSFETs provide up to 92~95% efficiency for critical power supplies, while additional channels operate with external FETs for optimum design flexibility. All channels DC/DC operate at one fixed frequency settable from 100KHz to 1MHz to optimize size, cost, and efficiency.APPLICATIONS
● DSC Power Supply Pin Assignment AT1397AN 36 37 38 39 40 41 42 43 44 45...