TPS65137
www.ti.com
SLVS929A –MAY 2010–REVISED OCTOBER 2012
200mA Dual Output AMOLED Display Power
Check for Samples: TPS65137
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FEATURES
DESCRIPTION
The TPS65137 is designed to provide best in class
picture quality for AMOLED displays (Active Matrix
Organic Light Emitting Diode) requiring positive and
negative voltage supply rails. With its wide input
voltage range the device is ideally suited for
AMOLED displays, which are used in mobile phones
and smart phones. With this device the input voltage
can be higher than the positive output voltage and
still maintains accurate regulation of VPOS. Using the
digital control pin (CTRL) allows adjusting the
negative output voltage in digital steps. The
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2.3 V to 5.5 V Input Voltage Range
1% Output Voltage Accuracy VPOS
Excellent Line Transient Regulation
Low Noise Operation
200 mA Output Current
Fixed 4.63 V Positive Output Voltage
Digitally Programmable Negative Output
Voltage Down to –5.23V
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–4.93V Default Value for VNEG
Advanced Power Save Mode
Short Circuit Protection
Thermal Shutdown
TPS65137 uses
a
novel technology enabling
excellent line and load regulation with minimum
output voltage ripple by using a LDO post regulator
for VPOS. This is required avoiding disturbance of the
AMOLED display due to input voltage transients
occurring during transmit periods in mobile phones.
TPS65137A High impedance output in
shutdown
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3×3 mm 10 Pin QFN Package
APPLICATIONS
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Active Matrix OLED Power Supply
TYPICAL APPLICATION
L1
4.7mH
VPOS
4.63V/200mA
VIN
C2
2.2mF
2.3V to 5.5V
C1
4.7mF
VNEG
-4.93V/200mA
C6
4.7mF
Enable and
Digital OUTN
Adjustment
C5
4.7mF
C4
100nF
L2
4.7mH
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