Dual Positive and Negative Outputs w/ Digital Vneg Adjustment - TPS65137

TPS65137 (ACTIVE)

Dual Positive and Negative Outputs w/ Digital Vneg Adjustment

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 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.

Features

  • 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
  • –4.93V Default Value for VNEG
  • Advanced Power Save Mode
  • Short Circuit Protection
  • Thermal Shutdown
  • TPS65137A High impedance output in shutdown
  • 3×3 mm 10 Pin QFN Package

View more

Parametrics Compare all products in LCD/OLED Display Bias Solutions

 
Target Application
Vin (Min) (V)
Vin (Max) (V)
Special Function
VCOM
Charge Pump
DC/DC Converter
LDO
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS65137 TPS65138 TPS65631W TPS65632 TPS65632A
Small Form Factor
Smartphone    
Small Form Factor
Smartphone    
Small Form Factor
Smartphone    
Small Form Factor
Smartphone    
Small Form Factor
Smartphone    
2.3     2.9     2.9     2.9     2.9    
5.5     4.5     4.4     4.5     4.5    
      External output sense pin for VPOS     External output sense pin for VPOS    
No VCOM     No VCOM     No VCOM     No VCOM     No VCOM    
    0       0    
2     2     2     3     3    
0     0     0       0    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
10WSON     10VSON     10SON     16WQFN     16WQFN    
0.85 | 1ku     0.95 | 1ku     1.20 | 1ku     1.50 | 1ku     1.50 | 1ku    

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