LN2114 Overview
The LN2113 and LN2114 are low noise, constant frequency charge pump DC/DC converters that use fractional (1.5X) conversion to increase efficiency in white LED applications. The devices can be used to produce current levels up to 20mA for each output from a 2.7V to 5.5V input. A low external parts count (two 1μF flying capacitors and two small bypass capacitors at VIN and OUT) makes the LN2113/LN2114 ideally suited...
LN2114 Key Features
- LN2113: four outputs
- LN2114: six outputs
- 20mA full-scale current
- 32-position logarithmic scale with digital control
- Low noise constant frequency operation
- 33% less input current than doubler charge pump
- High accuracy brightness matching
- Vin range: 2.7v to 5.5v
- IQ <1μa in shutdown
- 16-pin QFN, 12-pin TSOPJW package