8.2.3 Other Application Circuit Examples

Figure 14 to Figure 22 show application circuit examples using the TPS61087-Q1 device. These circuits must be fully validated and tested by customers before using these circuits in their designs. TI does not warrant the accuracy or completeness of these circuits, nor does TI accept any responsibility for them.

fS = 650 kHz

VS = 15 V

IOUT(max) = 900 mA

Figure 14. 5-V to 15-V Application Diagram

fS = 1.2 MHz

VS = 9 V

IOUT(max) = 950 mA

Figure 15. 3.3-V to 9-V Application Diagram

fS = 650 kHz

VS = 9 V

IOUT(max) = 950 mA

Figure 16. 3.3-V to 9-V Application Diagram

fS = 650 kHz

VS = 15 V

IOUT = 300 mA

Figure 17. Diagram for Application With External Load Disconnect Switch

fS = 650 kHz

VS = 15 V

IOUT(max) = 900 mA

Figure 18. Application Diagram for 5 V to 15 V With Overvoltage Protection

fS = 1.2 MHz

VS = 15 V

IOUT = 500 mA

Figure 19. Application Diagram for 5 V to 15 V for TFT LCD With External Charge Pumps (VGH, VGL)

fS = 650 kHz

IOUT = 500 mA

Figure 20. Application Diagram for wLED Supply (3S3P) With Optional Clamping Zener Diode

fS = 650 kHz

IOUT = 500 mA

Figure 21. Application Diagram for wLED Supply (3S3P) With Adjustable Brightness Control
Using A PWM Signal On The Enable Pin With Optional Clamping Zener Diode

fS = 650 kHz

IOUT = 500 mA

Figure 22. Application Diagram for wLED Supply (3S3P) With Adjustable Brightness Control
Using An Analog Signal On The Feedback Pin With Optional Clamping Zener Diode