Features: ` Dual Adjustable Output Voltages Up to +15 V and Down to 15 V
` 800-mA Typical Switch Current Limit at Boost and Inverter Main Switches at TPS65130
` 2-A Typical Switch Current Limit at Boost and Inverter Main Switches at TPS65131
` Up to 89% Efficiency at Positive Output Voltage Rail
` Up to 81% Efficiency at Negative Output Voltage Rail
` Power-Save Mode for High Efficiency at Low Load Currents
` Independent Enable Inputs for Power Up and Power Down Sequencing
` Control Output for External PFET to Support Completely Disconnecting the Battery
` 2.7-V to 5.5-V Input Voltage Range
` Minimum 1.25-MHz Fixed Frequency PWM Operation
` Thermal Shutdown
` Overvoltage Protection on Both Outputs
` 1-A Shutdown Current
` Small 4 mm x 4 mm QFN-24 Package (RGE)
Application· Small to Medium Size OLED Displays
· (TFT) LCD and CCD Bias Supply
· PDAs, Pocket PCs, Smartphones
· Digital Cameras
· Camcorders
Pinout
Specifications
| |
TPS65130/1 |
| VIN, INN Input voltage range at pins (2) |
0.3 V to +6.0 V |
| VPOS Maximum voltage at pin (2) |
17 V |
| VNEG Minimum voltage at pin (2) |
17 V |
| Voltage at pins ENN, ENP, FBP, FBN, CN, CP, PSP, PSN, BSW (2) |
0.3 V to VIN + 0.3 V |
| INP Input voltage at pin (2) |
17 V |
| Differential voltage between pins OUTN to VINN (2) |
24 V |
| TJ Operating virtual junction temperature |
40 to 150 |
| TSTG Storage temperature range |
65 to 150 |
(1) Stresses beyond those listedunder "absolute maximum ratings" may cause permanent damage to thedevice. These are stress ratings only, and functional operation of the deviceat these or any other conditions beyond those indicated under "recommendedoperating conditions" is not implied. Exposure to absolute-maximum-ratedconditions for extended periods may affect device reliability.
(2) All voltage values are withrespect to network ground terminal, unless otherwisenoted.
DescriptionThe TPS65131 is dual-output dc-dc converter gen-erating a positive output voltage up to 15 V and a negative output voltage down to -15 V with output currents in a 200-mA range in typical applications, depending on input voltage to output voltage ratio.
With a total efficiency up to 85%, the TPS65131 is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the TPS65130/1 to be directly powered from a Li-ion battery, from 3 cells NiMH/NiCd or alkaline batteries.
The TPS65131 comes in a small 4 mm x 4 mm QFN-24 package. Together with a minimum switching frequency of 1.25 MHz it enables designing small power supply applications because it requires only a few small external components.
TPS65131 Data Sheet
