LP3102
Dual Channel Charge Pump Power Solution For TFT LCD Panel
General Description
The LP3102 DC/DC converter integrates two low
noise, high efficiency charge pumps for dual outputs,
which consist of one inverting output and a step-up
output. The device operates from 2.5V to 4.8V input,
and provides a step-up output voltage (VP) of 2x the
input voltage. The negative inverting output (VN) is -1x
inverted from the positive output VP.
The LP3102 is available in a small TDFN-10 pin
package that features a bottom side exposed thermal
pad to provide optimal heat dissipation. The small
package size and low external parts count make the
device ideally suitable for TFT LCD applications of
mobile products. The device is rated to operate from
-40℃ to +85℃ ambient temperature range.
Features
Ultra-Low-Noise for RF Application
2.5V to 4.8V Input Supply Voltage Range
Adaptive 1.5x / 2x mode switchover for positive
voltage and -1x mode for negative voltage
VP output range (VOUT ≦ 2x VIN):
5.5V to 5.9V (LP3102QVF)
VN output range (VOUT ≦ 2x VIN):
-5.5V to -5.9V (LP3102QVF)
High current output: Vin=3.3V, IOUT=±120mA;
Built in Power On Sequence
TDFN-10 (3.0mm × 3.0mm) Package
Absolute Maximum Ratings
Input / Output Voltage to GND --------------------------------------------------------------------------------- -0.3V to 6V
EN to GND -------------------------------------------------------------------------------------------------------- -0.3V to VIN
Maximum Junction Temperature ------------------------------------------------------------------------------------ 150℃
Maximum Soldering Temperature (at leads, 10sec) ----------------------------------------------------------- 260℃
Storage Temperature Range ---------------------------------------------------------------------------- −65℃ to 165℃
Operation Ambient Temperature Range --------------------------------------------------------------- -40℃ to 85℃
Maximum Power Dissipation (PD, TA<40℃) --------------------------------------------------------------------- 1.5W
Thermal Resistance (JA) --------------------------------------------------------------------------------------------- 68℃/W
