LTC7138IMSE#PBF

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LTC7138IMSE#PBF, categorized into PMIC - Voltage Regulators - DC DC Switching Regulators, is a single-channel, programmable, synchronous step-down switching regulator, designed to drive high-current loads with low quiescent current. Its efficiency and a wide input voltage range make it suitable for many types of applications.

LTC7138IMSE#PBF Application Field

The LTC7138IMSE#PBF is used in various applications ranging from powering large-scale displays to low-power flash memory. It is ideal for applications requiring a high current input such as large LCD displays for electronic gaming, POS, and industrial displays, and mobile handset displays.

In addition, the device is also suitable for powering peripheral cards such as memory card readers, flash card readers and HSDPA cards, camera modules, FPGA, and 1080p LCD panels used in mobile phones and other handheld devices.

The device is also used in automotive applications such as 12V dashboard lighting, RFID cards, and various other automotive-related peripherals.

LTC7138IMSE#PBF Working Principle

The LTC7138IMSE#PBF is a synchronous step-down switching regulator which allows it to provide high efficiency over a wide input voltage range. This is accomplished by using a power factor correction (PFC) technique which optimizes the switching circuit operation. It achieves this by employing a cycle-by-cycle current limiting system which enables the IC to shut off quickly when an overcurrent is detected.

Furthermore, an internally set oscillator guarantees optimal performance when operating at different conditions such as input voltage, load current and ESR. The device can also supply up to 10A of output current with a typical dropout voltage of 0.2V. Additionally, the device uses synchronous rectification techniques to reduce switching losses and improve efficiency.

It is designed to operate in fixed modes with adjustable output voltage (VOUT) or current (IOUT) feedback Regulation. It also supports a programmable soft start, frequency foldback and thermal foldback mechanisms to protect the device, input and output during operation.

Conclusion

The LTC7138IMSE#PBF is a single channel, programmable, synchronous step-down switching regulator with high efficiency over a wide input voltage range. It is used mainly for powering large-scale displays, peripheral cards, automotive applications, etc. The device utilizes a power factor correction (PFC) technique and has an internally set oscillator for optimal performance. Furthermore, it can supply up to 10A of output current and supports a programmable soft start, frequency foldback and thermal foldback mechanisms.

In conclusion, the LTC7138IMSE#PBF is an ideal choice for applications such as large LCD displays, peripheral cards, automotive applications, and more. It delivers superior accuracy, low quiescent current and a high degree of protection mechanisms.

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