SKY81290 Overview
The SKY81290 is a high efficiency, 1.2 A high current boost converter with a programmable constant current sink. It is an ideal power solution for LED photo flash applications in all single cell, Li-ion powered products. The SKY81290 maintains output current regulation by switching the internal high-side and low-side switch transistors.
SKY81290 Key Features
- Input voltage range: 2.7 V to 5.5 V
- Single channel flash output
- Up to 1.2 A regulated output current
- Up to 88% efficiency
- Switching frequency: 2.0 MHz
- Separate flash enable
- Single resistor sets Flash and Movie Mode current
- Flash safety timer
- AS2Cwire single wire programming
- Movie Mode current