LTC1697 Series

High Efficiency Low Power 1W CCFL Switching Regulator

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

High Efficiency Low Power 1W CCFL Switching Regulator

Part	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Applications	Mounting Type	Supplier Device Package	Package / Case	Voltage - Input [Min]	Voltage - Input [Max]
Analog Devices Inc./Maxim Integrated LTC1697EMS#TRPBF	85 °C	-40 C	1	Cold Cathode Fluorescent Lamp (CCFL) Controller	Surface Mount	10-MSOP	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	2.8 V	5.5 V
Analog Devices Inc./Maxim Integrated LTC1697EMS#PBF	85 °C	-40 C	1	Cold Cathode Fluorescent Lamp (CCFL) Controller	Surface Mount	10-MSOP	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	2.8 V	5.5 V

Catalog

High Efficiency Low Power 1W CCFL Switching Regulator

Description

The LTC1697 is designed to control a single 1W cold cathode fluorescent lamp (CCFL). An internal PWM dimming system maximizes efficiency and dimming range. Accurate lamp currents can be set with a single external resistor.The LTC1697 includes a synchronous current mode PWM controller with internal 1A MOSFET switches. It contains a 300kHz oscillator, 0.8V reference, and internal current sense. It operates from a 2.8V to 5.5V input voltage. The LTC1697 also has a thermal limit and a shutdown that reduces supply current to <2µA.The LTC1697 is available in the MSOP-10 package.ApplicationsPDAsHandheld ComputersPortable InstrumentsHandheld GPS with Map DisplayHandheld TV/Video Monitor