Linear Technology LT1947
The LT1947 is guaranteed to meet performance specifications from 0°C to 70°C.| Part No. | LT1947 |
|---|---|
| Datasheet | LT1947 Download |
| Manufacturer |  Linear Technology |
| Description | Adjustable Output TFT-LCD Triple Switching Regulator |
| Buy | Stock & Price |
FEATURES
s s s s s s s s s s s DESCRIPTIO Complete Solution Under 1.2mm Develops Three Outputs from a 3.3V or 5V Supply Externally Programmable VON Delay Fixed Frequency Low Noise Outputs All Ceramic Capacitors 3MHz Switching Frequency Fast Transient Response Few External Components Required 2.7V to 8V Input Range Adjustable AVDD and VON Voltages Tiny 10-Lead MSOP Package U APPLICATIO S s s s s TFT-LCD Notebook Display Panels TFT-LCD Desktop Monitor Display Panels Digital Cameras Handheld Computers The LT®1947 is a highly integrated multiple output DC/DC converter designed for use in TFT-LCD panels. The device contains two independent switching regulators. The main regulator has an adjustable output voltage with an internal 1.1A switch that can generate a boosted voltage as high as 30V. The second regulator’s output is also adjustable up to 30V and can deliver 10mA for positive bias. A simple level-shift charge pump off the main switch node generates the negative bias voltage. An external capacitor sets the delay time from AVDD’s final value to the rising edge at the VON pin.
