Three new power management chips increase efficiency, voltage and output current in LED designs

Key features of the TPS61500

Key benefits of TPS61500

• 2.9-V to 18-V input voltage range
• 3.0-A current switch with integrated FET
• Four 3-W LEDs from 5 Vin
• Eight 3-W LEDs from 12 Vin
• 200 kHz to 2.2 MHz switching frequency
• Brightness dimming
• User-defined soft start
• 93 percent efficiency

• Wide input supply range for 12-V or 15-V industrial power rails
• Up to 1-A output current
• HTSSOP package for best thermal behavior
• Can be tailored to many applications

Key features of TPS61175

Key benefits of TPS61175

• Wide input voltage range of 2.9 V to 18 V
• 3.0-A/40-V integrated MOSFET
• Wide switching frequency of 200 kHz to 2.2 MHz

• Supports industrial applications with 12-V, 15-V bus systems or multi-cell applications
• Builds small, internal compensation and enables flexible configurations for different application needs like boost, SEPIC and fly back converters
• Offers choice to design for efficiency, smallest solution size or specific frequency range

Key features of TPS62110

Key benefits of TPS62110

• Adjustable input voltage: 3.1 V to 17 V
• Adjustable output voltage: 1.2 V to 15 V
• Maximum output current 1.5 A
• Maximum efficiency 95 percent
• Quiescent current: 20 uA; 2 uA in shutdown
• Switching frequency: 1 MHz
• Power good and low-battery detect
• Soft start limits in-rush current

• Closes the gap between low-power DC/DC converters for portable applications and higher power DC/DC SWIFTTM converters for industrial applications
• As a LED driver new lighting achieves up to 90 percent in energy savings and the life time of the light increases up to 8 times
• Can support fixed line rails like 12 V or 15 V, as well as a flexible number of battery cells
• Small QFN package and small exterior inductor (6.8 uH) result in small overall solution size