illustrate

The TPS53126 is a dual-channel, adaptive turn-on time controller with a CAP2 mode synchronous buck controller. The TPS53126 enables system designers to complete a cost-effective, low external component count, and low standby current solution for a regulated power bus kit for a variety of end devices. D-CAP2 mode control for the TPS53126 master control cycle provides a very fast transient response without the need for external components. The TPS53126 also features dedicated circuitry that allows the device to accommodate two low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP ceramic capacitors with ultra-low ESR. The device provides input voltages from 4.5 V to 24 V, while output voltages from 0 for convenient and efficient operation.

characteristic

• D - CAP2™ mode control
  • Fast transient response
  • For parts that require no external loop compensation
  • Suitable for 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
• Low_targetR_{DS (top)}Lossless current sensing
• Adaptive gate driver with integrated boost diode
• Internal 1.2ms voltage soft-start servo
• Pre-biased soft-start
• Selectable switching frequency: 350 kHz / 700 kHz
• Cycle-by-cycle overcurrent limiting control
• OCP threshold voltage from 30 mV to 300 mV
• Thermal compensation for OCP_TripBy 4000/a C °,
• apply
  • Point-load regulation for a wide range of low-power systems
    • Digital TV power supply
    • Network home terminal