LN2117
Overview
The LN2117 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular phones, PDAs and digital cameras etc. Output voltage of up to 20V can be derived, and from a 3.2V input four white Led’s cab be driven in series or alternatively, using a 3.0V input, a network of six LEDs may be driven.
- Input voltage range
- 5V-6V
- Output voltage range up to 20V
- Oscillation frequency 1MHz±20%
- Efficiency 88%(When driving 3 white LEDs in series VIN=3.6V ILED=20mA)
- Control PWM control
- Stand-by Current ISTB=1.0uA(MAX)
- Load capacitor
- 22uF,ceramic
- LX limit Current 300mA
