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TPS65111

Texas Instruments
Part Number TPS65111
Manufacturer Texas Instruments
Description LTPS-LCD BIAS POWER SUPPLY / TRIPLE CHARGE PUMP
Published Sep 29, 2019
Detailed Description www.ti.com TPS65110 TPS65111 SLVS495 − SEPTEMBER 2003 LTPSĆLCD BIAS POWER SUPPLY, TRIPLE CHARGE PUMP FEATURES D Compl...
Datasheet PDF File TPS65111 PDF File

TPS65111
TPS65111

Overview
www.
ti.
com TPS65110 TPS65111 SLVS495 − SEPTEMBER 2003 LTPSĆLCD BIAS POWER SUPPLY, TRIPLE CHARGE PUMP FEATURES D Complete LTPS-LCD Bias Solution D Triple Output Charge Pump Providing VCC at 16 mA, VDD at 2 mA, VSS at 1 mA D 2.
4 V to 5.
5 V Input Voltage Range D Fixed Output Voltages of 3.
3 V, 7.
5 V, −2.
7 V or 5.
0 V, 9.
0 V, −3.
0 V D 50 µA Typical Quiescent Current D Less Than 1 µA Shutdown Current D Ultra-Low Ripple (VCC = 5 mV, Typical at 5 mA) D Autonomous Boost for VCC Supply D 1.
5% Accuracy on Fixed VCC Output Voltage D Sequential Power Control D 24-Pin QFN Package (4 x 4) APPLICATIONS D Small Form LTPS−LCD Displays D PDAs, Pocket PCs D Smart Phones APPLICATION CIRCUIT FOR TPS65111 0.
1 µF VIN 2.
4 V to 5.
5 V 4.
7 µF 0.
22 µF 0.
22 µF 0.
22 µF CSP CSN VIN VSS TPS65111 CCP1 CDP1 CCN1 CCP2 CDN1 CDP2 CCN2 CCP3 CDN2 CDP3 CCN3 CDN3 VCC 5 V, 16 mA VCC 2.
2 µF VDD VSS −3 V, 1 mA 2.
2 µF 0.
1 µF 0.
1 µF 0.
1 µF 1 µF VDD 9 V, 2 mA DESCRIPTION The TPS65110/11 is a very compact power supply solution providing the three voltages required by many LTPS LCD displays.
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.
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.
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 PART NUMBER VCC TPS65110RGE 3.
3 V V...


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