TPS53129

illustrate

The TPS53129 is a dual-channel, D-CAP2™ mode synchronous buck controller with adaptive turn-on time. This TPS53129 ensures that system designers complete regulated power bus kits for a wide range of end devices with cost-effective, low component count, and low standby current solutions. D-CAP2™ mode control for TPS53129 main control cycle provides a very fast transient response without the need for external components. The TPS53129 also has a circuit that allows the device to accommodate two low-equivalent series resistors (ESR) output capacitors, such as POSCAP or SP-CAP ceramic capacitors with ultra-low ESR. Fixed-frequency emulation adaptive on-time control supports efficient and seamless operation under heavy load conditions, reducing operating frequency between PWM modes in the range of light loads to milliamps.

 characteristic

• ð - CAP2™ mode control
  • Fast transient response
  • For loop compensation without external components
  • Compatible with ceramic output capacitors
• High initial reference accuracy (± 1%)
• Low output ripple
• Wide input voltage range: 4.5 V to 24 V
• Output voltage range: 0.76 V to 5.5 V
• Lossless current detection for low-end R DS(ON).
• Adaptive gate driver with integrated boost diode
• Adjustable soft start
• Non-sinking pre-bias soft start
• 700 kHz switching frequency
• Cycle-by-cycle overcurrent limit control
• OCP threshold voltages from 30 mV to 300 mV
• The heat compensation of OCP is 4000 ppm / °C at the time
• apply
  • Point load regulation is widely used in low-power systems
    • Digital TV power supply
    • Network home terminal