Product Summary

The AAT1118/A/B is an adjustable triple-channel TFT LCD DC-DC converter that provides one current mode PWM, one positive charge pump and
one negative charge pump. Built-in functions include soft-start and power up sequencing. When power is turned on, soft-start avoids inrush current.
Power up sequencing feature provides compensation for LCD panel to maintain a smooth voltage during a turn-on cycle

Parametrics

Absolute Maximum Ratings:

  1. VDDto GND : 7 V
  2. SW to GND:18 V
  3. VDD1, VDD2to GND:16 V
  4. Input Voltage 1 (IN1, IN2, IN3, SHDN): VDD +0.3 V
  5. Output Voltage 1 (EO, VREF) : VDD +0.3 V
  6. Output Voltage 2 (OUT2, OUT3, SW, PGO) :VDDH +0.3 V
  7. Operating Free-Air Temperature Range : - 40 to + 85℃
  8. Storage Temperature Range:- 45 to + 125℃
  9. Power Dissipation :750 mW


Features

  1. Built in 1.6A, 0.2 Switching NMOS
  2. Fault and Thermal Protection
  3. Internal Soft-Start Function
  4. Internal Power Up Sequencing
  5. Dual Adjustable Charge Pump Output:Positive Output to 40V;Negative Output to - 40V
  6. Power Good Output
  7. TSSOP-16 Package

Diagrams