LM2711

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
V_IN ...........................................-0.3V to 7.5V
V_SW Voltage............................. -0.3V to 18V
FB Voltage ..................................-0.3V to 7V
VC Voltage....................... 0.965V to 1.565V
SHDN Voltage ...........................-0.3V to V_IN
FSLCT Voltage.......................... AGND to V_IN
Supply Voltage, Vs+ ................-0.3V to 12V
Buffer Input Voltage ..................Rail-to-Rail
Buffer Output Voltage ...............Rail-to-Rail
ESD Ratings
(Note 3)
Human Body Model.............................. 2kV
Machine Model ..................................200V

The LM2711 is a compact bias solution for TFT displays. It has a current mode PWM step-up DC/DC converter with a 1.4A, 0.17 internal switch. Capable of generating 8V at 300mA from a Lithium Ion battery, the LM2711 is ideal for generating bias voltages for large screen LCD panels. The LM2711 can be operated at switching frequencies of 600kHz or 1.25MHz, allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output.

The LM2711 uses a patented internal circuitry to limit startup inrush current of the boost switching regulator without the use of an external softstart capacitor. An external softstart pin enables the user to tailor the softstart to a specific
application. The LM2711 contains 4 Gamma buffers capable of supplying 50mA source and sink. The TSSOP-20 package ensures a low profile overall solution.