BD9701FP-E2

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BD9701FP-E2 is a DC-DC switching regulator integrated circuit that is designed to reduce the voltage levels of positive supply voltages. It is designed to convert a pre-regulated voltage of 5.0 V to a lower voltage while providing a high output current at the same time. The BD9701FP-E2 is part of a wide range of DC-DC switching converters, and it offers high efficiency and low output noise characteristics. This DC-DC switching regulator is suitable for powering mobile devices, portable computers, and other low voltage applications.

BD9701FP-E2 application field is mainly related to low voltage applications as aforementioned. In particular, it is suitable for battery-operated applications, such as PDAs, digital still cameras and portable digital music players. It can also be used for various types of embedded systems with multiple power rails, such as smart phones and handheld devices. Compared to conventional linear regulators, the BD9701FP-E2 improves system reliability, reduces system noise, and increases energy efficiency.

The working principle of BD9701FP-E2 is based on the Buck (step-down) switching converter, which is an efficient power converter. The Buck converter works by rapidly switching the transistors on and off to transfer power from the input to the output. The operation of the Buck converter is based on the concept of Pulse Width Modulation (PWM) control. In the BD9701FP-E2, the PWM control is done using a voltage feed-forward method. A voltage reference is used to set the output voltage and the feedback signal is used to control the duty cycle of the converter, which in turn controls the output voltage. The BD9701FP-E2 supports a wide input voltage range of 4.5 V to 14 V, and a wide output voltage range of 0.8 V to 5.25 V.

The BD9701FP-E2 is a monolithic step-down DC/DC converter that integrates an N-channel MOSFET as the primary switch and several control and protection circuits into one integrated circuit. The device is optimized to operate at relatively high switching frequencies up to 1.5 MHz, enabling small and compact solutions, while still providing reliable output voltage levels. The BD9701FP-E2 also features an input voltage range of 4.5 V to 14 V and an output voltage range of 0.8V-5.25V. The device has an internal Soft-Start (SS) function and it supports input-voltage under-voltage lockout (UVLO) with hysteresis, over-current protection (OCP) and over-voltage protection (OVP). The BD9701FP-E2 also has adjustable switching frequency, synchronization capability, and a fast dynamic response to line and load changes due to its internal compensation.

BD9701FP-E2 is a highly integrated DC-DC switching regulator, featuring a wide input and output voltage range, low noise and high efficiency. It is suitable for powering mobile devices and portable computers, and it enhances system reliability and energy efficiency. As such, it is a powerful and reliable switching regulator solution for a wide range of applications and usage scenarios.

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