G5512

Global Mixed-mode Technology Inc. G5512 Integrated Power Solution for TFT-LCD Features „ 2.5V to 5.5V Input Supply Range „ 1.2MHz Current-Mode Step-Up Converter „ Built-In 18V, 0.15Ω n-Channel MOSFET „ Charge Pumps for VGON and VGOFF „ Thermal Overload Protection „ TQFN5X5-20 Package Applications „ LCD Monitor Panels „ Notebook Computer Displays „ LCD TVs General Description The G5512 includes a step-up converter, a positive charge pump, and a negative charge pump. Also included is a logic-controlled high-voltage switch with built-in delay. The step-up DC/DC converter provides the regulated power supply for the panel source driver IC. The converter is a high performance current-mode regulator with operating frequency at 1.2MHz. It also provides fast transient response and high efficiency. The charge pumps in G5512 regulate TFT gate-on and gate-off power supplies for LCD panel. G5512 is available in TQFN5X5-20 package. Ordering Information ORDER NUMBER G5512RS1U Note: RS: TQFN5X5-20 1: Bonding Code U: Tape & Reel Pin Configuration MARKING 5512 TEMP. RANGE -40°C to 85°C PACKAGE (Green) TQFN5X5-20 VGHM NC VGH FBP CTL 20 19 18 17 16 ADJ 1 VIN 2 VIN 3 SW 4 SW 5 21 BGND Thermal Pad 15 VREF 14 FBN 13 AGND 12 DRVP 11 DRVN PGND 6 PGND 7 FB 8 COMP 9 SUP 10 G5512 TQFN5X5-20 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. Ver: 0.3 Jun 02, 2011 TEL: 886-3-5788833 http://www.gmt.com.tw 1 ...