illustrate

The TPS43000 is a high-frequency, voltage-mode, synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a (one N-channel and one P-channel) to an external MOSFET with a favorable output voltage and power range to use it. With automatic PFM mode, shutdown of less than 1 microampere, sleep mode of less than 100 microamperes of current, and the entire operation of less than 2 mA current at 1 MHz current, it is ideal for establishing high-efficiency, DC-to-DC converters.

The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V, and typical power sources are distributed power systems, 2 to 4 nickel or alkaline batteries, or a pair of two lithium-ion batteries.

characteristic

• High frequency (2-MHz) voltage mode PWM controller
• 1.8 V to 9.0 V input voltage range
• 0.8 - V to 8.0 V Output Voltage Range (Advanced in Asynchronous Boost Topologies)
• High-efficiency buck, boost, SEPIC or flyback (buck-boost) topologies
• High efficiency of synchronous rectification
• For high-current applications, drive an external MOSFET
• Synchronized fixed frequency PWM or pulse frequency modulation automatic (PFM) modes
• Built-in soft start
• User-programmable intermittent or continuous on-mode
• Optional pulses are protected by pulse current limit or burp mode
• apply
  • Network equipment
  • server
  • base station
  • Cellular phones
  • Satellite phone
  • GPS devices
  • Digital cameras and handheld cameras
  • Personal (handheld) digital assistant