TPS40130RHBTG4

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The TPS40130RHBTG4 device is a pulse-width modulated multiple output step-down DC/DC controller with spread spectrum frequency modulation. It simplifies power supply design and provides high efficiency across load transients. The device integrates a high-efficiency 1.5A/1.25A/1A N-channel MOSFET, internal soft start/sequencing, current mode, external clock control and integrated Active Droop™. Together, these features enable the device to operate in a wide range of operating frequencies while providing excellent line/load regulation and high efficiency.

The TPS40130RHBTG4 application field is extended to PDAs, handhelds, cellular phones, and any other applications that require one or two outputs with multiple power levels. The device is designed specifically to satisfy the power management needs of mobile systems based on FPC bus, allowing multiple output levels, improved efficiency, and an overall reduction in power consumption and heat dissipated. The device is also applicable to lower power systems, such as digital still cameras, MP3 players, and battery-operated applications.

TPS40130RHBTG4 is a DC-DC controller based on a current-mode control system to provide high efficiency and fast load transient response over a wide range of load conditions. Input voltage operating range is 2.7V to 6.5V, with a maximum output voltage of 2V and a maximum output current of 2A. The device can accept and generate a PWM signal so that the output voltage and current can be regulated. The PWM frequency can be adjusted by the user; a typical value is 500kHz, but other values up to 1.5MHz can be used. Furthermore, TPS40130RHBTG4 integrates active droop circuitry, which is used to maintain a constant output voltage and current when a load transient occurs.

TPS40130RHBTG4 integrates adjustable soft start/sequencing, which helps reduce power-up surges, increasing start-up reliability. The device also includes clock synchronisation and option of switching the clock source from external or internal. In addition, it includes a low-battery monitor with adjustable thresholds, which can generate an interrupt signal to notify the user that the battery needs to be recharged or replaced.

Overall, TPS40130RHBTG4 provides excellent line/load regulation, high efficiency and low EMI signatures across a wide range of operating frequencies. It also integrates a high-efficiency 1.5A/1.25A/1A N-channel MOSFET, internal soft start/sequencing, current mode, external clock control and integrated Active Droop, making it suitable for applications that require one or two outputs with multiple power levels.

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