TPS65124 - Texas Instruments

TPS65124 SINGLE-INDUCTOR QUADRUPLE-OUTPUT TFT LCD POWER SUPPLY

The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the induct.

Features

• Main Output, VMAIN
  – Adjustable Voltage, 3.0 V to 5.6 V/25 mA
  – Post-Regulated for Low Ripple (5mVPP)
  – ±0.8% Typical Accuracy
  – Efficiency up to 83%
• Positive Output, VGH
  – Adjustable Voltage up to 20 V/2 mA
  – ±3% Typical Accuracy
• Negative Output, VGL
  – Adjustable Voltage down to -18 V/2 mA
  – ±3% Typical Accuracy
• Auxiliary 1.8 V/3.3 V Linear Regulator
• Automatic or Programmable Power Sequencing
• Complete 1 mm Component Profile Solution
• 2.5 V to 5.5 V Input Voltage Range
• Output Short Circuit Protected
• 16-Pin QFN Package (3 × 3 × 0,9 mm) APPLICATIONS
• Small Form Factor a-Si and.