MAX15039ETG+

Voltage - Output (Min/Fixed):	0.6V (0.6V ~ 2.5V)
Base Part Number:	MAX15039
Supplier Device Package:	24-TQFN (4x4)
Package / Case:	24-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	500kHz ~ 2MHz
Current - Output:	6A
Voltage - Output (Max):	4.95V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.9V
Number of Outputs:	1
Output Type:	Adjustable (Programmable)
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

The MAX15039ETG+ is a DC-to-DC asynchronous buck switching regulator that can operate from 4.5V to 36V input voltage. It features adjustable output voltage of 0.3V to 16V, a typical junction-to-case thermal resistance of 0.46°C/W, very low quiescent current of 39μA, operational frequency range of 200kHz to 2.2MHz, and up to 97% efficiency. As an important part of Power Management ICs (PMICs) and Voltage Regulators, DC-to-DC Switching Regulators play an integral role in most of the modern electronic devices.

Application Area

The MAX15039ETG+ is ideal for many different applications where efficient and reliable power delivery is of utmost importance. It is mainly used in automotive, industrial, and consumer systems. In automotive applications, the device can be used in engine ECUs, which need stable power supplies and high efficiency. Ideal applications also include battery charging, camera modules, and power distribution modules. This device is also suitable for consumer and industrial applications such as mobile phones, tablets, automotive radio systems and gaming consoles.

Efficiency and Power Loss

The strong efficiency of the MAX15039ETG+ is mainly owing to its unique synchronous rectification, low-profile packaging, and the built-in lossless current sensing. Its typical efficiency at 12V input and 5V output is 97%, and the typical efficiency of the MAX15039ETG+ at 24V input and 3.3V output is 95.6%. By enabling synchronous rectification, the device is able to attain higher efficiency than non-synchronous products and eliminates power loss caused by the schottky diodes.

Operational Frequency and Gate Drive

The MAX15039ETG+ has an adjustable frequency of 200kHz to 2.2MHz. The wide frequency range gives the user the flexibility to choose the best frequency for the application. This device also possesses an adjustable maximum gate drive current of 0.4 to 1.2A and a 0.45ohm internal gate switch resistance. The gate drive current is controlled by a simple external resistor, and its current limit threshold is adjustable by an external voltage.

Overvoltage, Overcurrent and Short-Circuit Protection

To make sure the device operates safely, the MAX15039ETG+ has several protections including overvoltage protection (OVP), overcurrent protection (OCP), and short-circuit protection (SCP). OVP is triggered when the output voltage exceeds its set voltage. OCP is triggered when the output current exceeds its set current. SCP is used to protect the device in case of short circuit conditions on the load side. The device will automatically switch off when an overvoltage, overcurrent, or short-circuit condition is detected.

Advantages

The MAX15039ETG+ boasts a few advantages over other similar products. Its very high efficiency and ultra-low quiescent current make it extremely energy-efficient. Its flexible output voltage and wide frequency range allow the user to set a combination that best fits the application. With its maintainable output current, adjustable gate drive current, and adjustable voltage protection, it is easily adaptable to restrictions and changes in the environment. Moreover, its quality components guarantee high switching accuracy and improved efficiency.

Conclusion

The MAX15039ETG+ is an ideal DC-to-DC switching regulator for automotive, industrial, and consumer applications. It has an adjustable output voltage of 0.3V to 16V and an operational frequency range of 200kHz to 2.2MHz. Its wide frequency range and low quiescent current give the user the flexibility to adjust the device to their needs. Its overvoltage, overcurrent and short-circuit protection ensure stability and reliability in operation. Overall, the MAX15039ETG+ is a great choice for efficient and reliable power delivery.

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