THV3543_Rev.1.00_E
THV3543
2 channel Buck/Boost 2 channel Charge Pump Controller
Description
THV3543 is a controller IC for multi-channel power
supply system which includes 2 channel DC/DC
converter with built-in power MOSFETs and 2
channel charge pump circuits.
THV3543 has internal soft start, under voltage
protection, over voltage protection and over current
protection.
CH-1 is a Boost DC/DC converter which can provide
two optional modes of output voltage: the adjustable
mode with external resistor or the fixed 15.6V mode
requires no external resistors.
CH-2 is a Buck DC/DC converter. Its output voltage
is fixed at 3.3V.
Positive charge pump (VGH) and negative charge
pump (VGL) can provide two optional modes of
output voltage: the adjustable mode with external
resistor or the fixed mode (VGH at 35.6V, VGL at
-6V) requires no external resistors.
THV3543 has LDO and operational amplifier which
can be used for Half AVDD or Vcom.
Thus THV3543 can produce various necessary
voltages for LCD panels and ideal for constructing
TFT-LCD Bias power supply system.
Features
½QFN40
package
½Input
Voltage Range : 4.2½15V
½Boost
Converter with built-in Power MOSFET
½Buck
Converter with built-in Power MOSFET
500kHz Switching Frequency
Under Voltage Protection
Over Voltage Protection
Over Current Protection
½Positive/Negative
Charge Pumps
½LDO
½Operational
Amplifier
Pin Assignment
VO1_IN
PVCC
BST2
VCC
LSW_OUT1
V_AMP
LL2
NON_AMP
LX1
LX1
LX1
LL2
INV_AMP
Applications
½LCD
TV Bias Power Supply
½LCD
Monitor Bias Power Supply
PANEL_EN
SYSUVLO
V_LDO
SGND
NC
Connect the Exposed Pad to GND for enhanced
thermal performance.
INV_LDO
NC
Copyright© 2011 THine Electronics, Inc.
THine Electronics, Inc.
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THINE [ THINE ELECTRONICS, INC. ]
