BD95861MUV-E2

Voltage - Input (Max):	18V
Supplier Device Package:	VQFN024V4040
Package / Case:	24-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 100°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	500kHz ~ 800kHz
Current - Output:	6A
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	0.8V
Series:	H³®
Voltage - Input (Min):	7.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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BD95861MUV-E2 Application Field and Working Principle

Introduction

The BD95861MUV-E2 is a DC DC stepping down switching regulator with maximum output of 5A. Featuring low voltage operation starting at 0.6V, low quiescent current of 0.5mA and low noise design, the BD95861MUV-E2 is the ideal choice for battery-powered applications.

Application Field

The BD95861MUV-E2 is suitable for battery-powered products such as consumer products, automotive electronics, wearable devices, and industrial equipment. With its low voltage operation starting at 0.6V and a wide input voltage range from 2.8V to 5.5V, it is also ideal for external power management of small mobile devices such as USB-powered devices or battery-backed devices.

Safe design

The BD95861MUV-E2 offers 3.5V to 18V of self-protection prevention, preventing any damage caused by incorrect operation with high input voltages. This protection works along with the integrated overvoltage protection circuit, automatically reducing the output voltage to prevent out-of-range voltage levels. The BD95861MUV-E2 also features current limiting, short-circuit protection, and thermal shut-down functions to reduce device destruction in the case of unexpected external conditions.

Features

The BD95861MUV-E2 features a wide input voltage range from 2.8V to 5.5V. Its low voltage operation starting at 0.6V allows for direct step down from low voltage batteries, such as a 2.4V Li-Po battery. It is adjustable from 0.6V to 4.5V, making it ideal for applications such as buck converters and linear regulators. It provides excellent stability, with a load transient response time of 1.5µs (typ). Its operating frequency of 600kHz to 2.2MHz is adjustable, allowing efficient operation without degrading the system performance. The BD95861MUV-E2 also has excellent ripple rejection of more than 66dB, and its quiescent current of 0.5mA is the lowest in its class. This makes it one of the most efficient and reliable DC DC switch regulators available.

Working Principle

The BD95861MUV-E2 is a DC DC stepping down switching regulator, meaning it works by switching on and off a power transistor to reduce the input voltage to the desired level. This type of regulator is perfectly suited for battery-powered applications, but it can also be used in other applications requiring a step-down voltage regulator. The BD95861MUV-E2 is controlled by modulating the frequency of a pulse width modulated (PWM) signal, allowing for a higher switching frequency and better efficiency. The voltage regulation is based on the voltage feedback loop, which works by comparing the output voltage to a reference voltage and adjusting the PWM signal frequency to keep the output voltage at the desired level.

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