PanelPowerManagement

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LP6286-Panel Power
2.5-5.5Input Voltage(V):
6-18Output Voltage(V):
600/1200KSwitch Frequency:
92Efficiency:
3000Switch Current Limit(mA):
AVDD,VGH,VGHM,Vcom OP,ResetSpecial Features:
TQFN-24 4x4Package:


Multi-Channel DC-DC Converter for LCD Panel



General Description

The LP6286 includes a high-efficiency boost regulator, a gate pulse modulator (GPM), a voltage detector, a VCOM buffer, and dual charge pump controller for active matrix TFT LCDs. The converter is a high switching frequency current-mode regulator with an integrated N-Channel 0.2Ω MOSFET that allows the use of small inductors and ceramic capacitors. The OPA can drive the LCD VCOM voltage by Unity-Gain buffer, that features high short-circuit current, fast slew rate and rail-to-rail inputs and outputs. The charge pump controller provides regulated TFT Gate-On voltage. The regulation of the charge pump is generated by the internal comparator that senses the output voltage and compares it with an internal reference. Other features include under-voltage protection, short circuit protection, thermal shutdown protection and under-voltage lockout (UVLO). The LP6286 is available in a space saving QFN-24 (0.5mm pitch) package.
 


Applications
 

 TFT LCD Panel
 TFT LCD Monitor

 


Features
 

 Wide VIN Range: 2.5V to 5.5V
 1.2MHz Current-Mode Boost Regulator
Fast Transient Response to Pulsed Load
Adjustable Output Voltage (±1%)
Built-In 3A, 0.2Ω N-MOSFET
High Efficiency Up to 90%
Internal Soft-Start
 GPM Controller with Adjustable
Power-On Delay and Falling Time
Adjustable VGHM Delay
 Low Voltage Detector
Programmable Detecting Voltage
Open-Drain Reset Output
 Operation Amplifier for VCOM Buffer
 VGH and VGL Charge Pump
 Under-Voltage Protection
 Over-Temperature Protection
 Available in QFN-24 (4×4mm)
 RoHS Compliant and Halogen Free
 Pb-Free Package
 
 

Marking Information
 

Please see specification. 
Please ask our service mailbox for what you want which is marketing@lowpowersemi.com.
We will send a copy to you as fast as we can.
 



 

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E-Mail:marketing@lowpowersemi.com
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