natlinear LN2113
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. The LN2113 provides four LED current source outputs, and the LN2114 provides six.| Part No. | LN2113 |
|---|---|
| Datasheet | LN2113 Download |
| Manufacturer | natlinear |
| Description | High Efficiency 1.5X Fractional Charge Pumps |
| Buy | Stock & Price |
APPLICATIONS
●GENERAL DESCRIPTION
A low external parts count (two 1μF flying capacitors and two small bypass capacitors at VIN and OUT) makes the LN2113/LN2114 ideally suited for small battery-powered applications. Simple Serial Interface is used to enable, disable, and set the LED drive current for 32-level logarithmic scale LED brightness control. LN2113/LN2114 devices have a thermal management system for protection in the event of a short-circuit condition on any of the output pins. Built-in soft-start circuitry prevents excessive inrush current during start-up. A high switching frequency enables the use of small external capacitors. A low-current shutdown feature disconnects the load from VIN and reduces quiescent current to less than 1μA. The LN2114 is available in the 16-pin quad QFN package, and the LN2113 is available in the 12-pin TSOPJW package.● Ordering Information Package QFN4×4-16 TSOPJW-12 Part Number LN2114-20-6 LN2113-20-4
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FEATURES
● LN2113: four outputs● LN2114:...
