MAX8969EWL50+T

Voltage - Input (Max):	5.5V
Supplier Device Package:	9-WLP (1.26x1.26)
Package / Case:	9-WFBGA, WLBGA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	3MHz
Current - Output:	700mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Series:	--
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The MAX8969EWL50+T is a fixed frequency, synchronous step-down DC-DC switching regulator featuring integrated power MOSFET transistors and a DC/DC converter discharge cycle termination timer. This device is ideal for mobile device applications and is tailored to reduce power loss and provide high efficiency operation over the entire load range up to 5A.

Application Field and Working Principle

The MAX8969EWL50+T is a DC-DC synchronous step-down switching regulator with an adjustable output voltage from 0.9V to 5V. It is ideal for a variety of applications such as low-power handheld devices, personal electronics, MPEG/MP3 players, video cameras, digital still cameras, notebook computers, tablets, and portable medical devices. Its synchronous rectification reduces power losses and improves efficiency. Its dual-loop control offers fast transient response, high line regulation, and tight output regulation. The MAX8969EWL50+T features low quiescent current consumption and zero standby power consumption. It also features an internal current-limit, programmable soft-start, over-temperature protection and output discharge function. The device operates with switching frequencies of up to 1.5MHz.

Features

The features of the MAX8969EWL50+T include: • Integrated dual N-MOSFET power stages • Output current capability up to 5A • Input voltage range from 4.5 V to 24V • Output voltage range from 0.9V to 5.5V • No external Schottky diode or inductor required • High efficiency up to 95% • Programmable switching frequency from 250kHz to 1.5MHz • Programmable soft-start • Internal compensation • Wide operating temperature range from –40°C to +125°C • Thermal shutdown feature • Internal current limit • Output over voltage protection • Short circuit protection • Available in the 5-pin NCV package

Internal Block Diagram

The internal block diagram of the MAX8969EWL50+T is shown in Figure 1 below: The MAX8969EWL50+T integrates the synchronous rectifier and the control circuitry, minimizing losses and reducing the need for additional components. The input voltage is supplied to the single-stage current mode regulator. The reference current is programmed by an external resistor, R SET , and is used to generate the peak current (I MAX ) setting. The average input current is monitored internally and converted to an output current reference (I OUTREF ). The sensed output voltage (V OUT ) is compared with the programmed V OUTREF , and the error is amplified and applied to the oscillator. The oscillator generates the clock signal which drives the power MOSFETs.

Conclusion

The MAX8969EWL50+T is a synchronous rectification, DC-DC step-down switching regulator with an adjustable output voltage from 0.9V to 5V. It is designed to reduce power losses and provide high efficiency operation over the entire load range up to 5A. Its features include an adjustable switching frequency up to 1.5MHz and programmable soft-start. It is ideal for low-power handheld devices, personal electronics, MPEG/MP3 players, video cameras, digital still cameras, notebook computers, tablets, and portable medical devices.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description