illustrate

The TPS51124 is a dual-channel, time-adaptive D-Day ™ mode synchronous buck controller. The device enables system engineers to cost-effectively complete the laptop power bus supervision suite with the absolute lowest external component count and lowest standby power consumption. Fixed frequency simulation adaptive turn-on time control supports high-efficiency seamless operation under heavy load conditions, reducing operating frequency between PWM modes in the range of milliamps at light loads. The TPS51124 main control cycle uses D-CAP modes such as low ESR POSCAP or SP-first output capacitors optimized for promising fast transient response without external compensation. Simple and independent power good signals for each channel allow flexibility in electrical sequencing.

characteristic

• High efficiency, low power consumption, with "1 microamperes" to stop production
• fixed-frequency simulation on-time control,
  The frequency is selectable from three options
• D - The mode implements ™ fast transient response
• Auto-skip mode
• Less than 1% initial benchmark accuracy
• Low output ripple
• Wide input voltage range: 3 V to 28 V
• Output voltage range: 0.76 V to 5.5 V
• Low_targetR_DS(ON).Lossless current sensing
• With an integrated boost diode adaptive gate driver
• Internal 1.2 ms voltage soft-start servo
• Power a good signal for each delay timer channel
• Disable of output traffic, failure
• apply
  • Laptop I/O and low voltage system bus