MAX17500BEUB+T

Frequency - Switching:	50kHz ~ 2.5MHz
Base Part Number:	MAX17500
Supplier Device Package:	10-uMAX
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	75%
Series:	--
Voltage - Supply (Vcc/Vdd):	23.6 V ~ 30 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, SEPIC
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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Introduction

The MAX17500BEUB+Tis a family of PMIC – Voltage Regulators – DC-DC Switching Controllers designed specifically for mobile display applications. The MAX17500BEUB+T integrates a highly efficient, low-quiescent-current Buck switching regulator with a low voltage low quiescent current single amplifier and a Millitech-style protection switch. It’s AEC-Q100 qualified for robust audio performance and optimal power delivery.

Physicial Characteristics

The MAX17500BEUB+T is available in a very small, 4.9mm x 4.9mm, 14- lead MLP Green power package. It is rated over the extended -40°C to +85°C temperature range. Its tiny size can be used to save board space and total cost of ownership.

Application Field

The MAX17500BEUB+T is perfect for applications where cost efficiency, low quiescent currents, and space savings are critical, such as mobile displays. It is applicable in mobile phones, tablets, netbooks, and other devices that require DC-DC conversion to support LCD power management. Its integrated protection switch and amplifier make it extremely efficient, even in harshest environmental extremes.

Working Principle

The MAX17500BEUB+T operates using a technique called buck switching, which is a type of voltage regulator. With this switched-mode design, it can convert input voltage into any desired output voltage that is lower than the input voltage. The process involves first charging an internal capacitor with the input voltage, then switching it off and allowing the capacitor to discharge into the output circuit. This is repeated at a high frequency and with a duty cycle that can be easily adjusted depending on the output voltage desired. The result is a much more efficient method of controlling the output with very low quiescent current draw. This design provides superior thermal regulation and temperature behavior, allowing it to perform over the extended temperature range. The MAX17500BEUB+T also features an integrated protection switch and single amplifier to provide additional safety and accuracy in voltage regulation. This technology helps to ensure that the DC-DC conversion is stable and reliable, with no output noise or overshoot.

Conclusion

The MAX17500BEUB+T is a highly efficient low voltage DC-DC switching controller designed for mobile display applications. It provides superior thermal regulation and temperature behavior to maximize efficiency and reliability. The integrated protection switch and single amplifier help to ensure that the DC-DC conversion is stable and reliable, without any output noise or overshoot. This is an ideal solution for applications where cost efficiency, low quiescent currents, and space savings are critical.

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