ꢀꢁ ꢂ ꢃꢄ ꢅꢅꢆ
ꢀꢁ ꢂ ꢃꢄ ꢅꢅꢅ
www.ti.com
SLVS495 − SEPTEMBER 2003
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FEATURES
DESCRIPTION
D
Complete LTPS-LCD Bias Solution
Triple Output Charge Pump Providing
at 16 mA, V at 2 mA, V at 1 mA
The TPS65110/11 is a very compact power supply
solution providing the three voltages required by many
LTPS LCD displays.
D
V
CC
DD
SS
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2.4 V to 5.5 V Input Voltage Range
Fixed Output Voltages of 3.3 V, 7.5 V, −2.7 V
or 5.0 V, 9.0 V, −3.0 V
50 µA Typical Quiescent Current
Less Than 1 µA Shutdown Current
All three regulated outputs are generated using a charge
pump topology.
The VCC charge pump provides precise, high efficiency,
and very low ripple dc/dc conversion for the LCD analog
power. The VCC boost ratio (x1.0, x1.33, x1.5, and x2.0)
is automatically set based on input and output voltage
conditions. The VCC output assures 16 mA of current by
using three 0.22-µF flying capacitors. If the required output
current is smaller, smaller capacitors can be applied.
Ultra-Low Ripple (V
= 5 mV,
CC
Typical at 5 mA)
Autonomous Boost for V
Supply
CC
1.5% Accuracy on Fixed VCC Output Voltage
Sequential Power Control
24-Pin QFN Package (4 x 4)
The VDD charge pump provides a higher positive voltage,
and the VSS charge pump provides the negative output
voltage. Power up/down sequences are internally set and
are secured even in cases of sudden and abnormal VIN
drop.
APPLICATIONS
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Small Form LTPS−LCD Displays
PDAs, Pocket PCs
Smart Phones
One of the most significant features of the TPS65110/11
is the ultra-low output voltage ripple, as the VCC charge
pump achieves 5-mV output ripple voltage.
AVAILABLE OUTPUT VOLTAGE OPTIONS
APPLICATION CIRCUIT FOR TPS65111
PART NUMBER
TPS65110RGE
TPS65111RGE
V
V
V
V
DD
BOOST
X3
CC
DD
SS
0.1 µF
3.3 V
5.0 V
7.5 V
9.0 V
−2.7 V
−3.0 V
X2
VIN
2.4 V to 5.5 V
VSS
−3 V, 1 mA
CSP CSN
(1)
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VIN
VSS
4.7 µF
TPS65111
2.2 µF
CCP1
CDP1
0.22 µF
0.22 µF
0.22 µF
0.1 µF
0.1 µF
0.1 µF
CCN1
CCP2
CDN1
CDP2
CCN2
CCP3
CDN2
CDP3
CCN3
VCC
CDN3
VDD
VDD
9 V, 2 mA
VCC
5 V, 16 mA
2.2 µF
1 µF
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated