参数资料
型号: TPS65111RGERG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: SWITCHED CAPACITOR REGULATOR, 520 kHz SWITCHING FREQ-MAX, PQCC24
封装: 4 X 4 MM, GREEN, PLASTIC, QFN-24
文件页数: 1/19页
文件大小: 483K
代理商: TPS65111RGERG4
TPS65110
TPS65111
SLVS495 SEPTEMBER 2003
LTPSLCD 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 A Typical Quiescent Current
D Less Than 1 A 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 LTPSLCD Displays
D PDAs, Pocket PCs
D Smart Phones
0.1
F
VIN
CSP CSN
VSS
0.22
F
CCP1
CCN1
CDP1
CDN1
0.1
F
4.7
F
2.2
F
0.22
F
CCP2
CCN2
CDP2
CDN2
0.1
F
0.22
F
CCP3
CCN3
CDP3
CDN3
0.1
F
VCC
VDD
2.2
F1 F
TPS65111
VIN
2.4 V to 5.5 V
VCC
5 V, 16 mA
VSS
3 V, 1 mA
VDD
9 V, 2 mA
APPLICATION CIRCUIT FOR TPS65111
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-
F 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
VDD
VSS
VDD BOOST
TPS65110RGE
3.3 V
7.5 V
2.7 V
X3
TPS65111RGE
5.0 V
9.0 V
3.0 V
X2
(1) The RGE package is available in tape and reel.
Add R suffix (RGER) to order quantities of 3000 parts.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
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.
www.ti.com
Copyright
2003, Texas Instruments Incorporated
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