LTM4600IV#PBF

Voltage - Output 3:	--
Base Part Number:	LTM4600
Supplier Device Package:	104-LGA (15x15)
Size / Dimension:	0.59" L x 0.59" W x 0.11" H (15.0mm x 15.0mm x 2.8mm)
Package / Case:	104-BLGA Module
Mounting Type:	Surface Mount
Efficiency:	92%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Current - Output (Max):	10A
Series:	µModule®
Voltage - Output 2:	--
Voltage - Output 1:	0.6 ~ 5 V
Voltage - Input (Max):	20V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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DC DC Converters: LTM4600IV#PBF Application Field and Working Principle

DC-DC converters provide power conversion between different voltage levels and are used for a wide range of applications such as industrial, automotive, and consumer electronics. The LTM4600IV#PBF is a monolithic switching voltage converter that delivers low voltage, high current solutions in a tiny, low profile package. It features a wide input voltage range of 2.7V to 5.5V and can provide output currents of up to 1.5A. Its many advantages include excellent thermal performance, low-noise operation, high efficiency, and an exceptional temperature stability.

Features of LTM4600IV#PBF

The LTM4600IV#PBF features a low-profile, 20-lead, 4mm × 5mm TSOT-23 package with a maximum height of just 0.7mm, making it a great choice for space-constrained applications. It offers an adjustable output voltage range from 0.8V to VIN, with a minimum dropout voltage and an impressive more than 90% efficiency over the entire load range. Its operating frequency range extends from 200kHz to 1.6MHz, allowing it to deliver a wide step-down ratio of up to 200:1. It also features an integrated inductor and is designed with an adjustable soft-start to prevent over-current events.

Applications and Working Principle

Due to its high power density, low noise levels, and compact package size, the LTM4600IV#PBF is ideally suited for high-current applications in mobile devices, battery-powered systems, industrial equipment, and power and motor control circuits. One typical application is keeping the input voltage from overloading the output when used with a power amplifier. The working principle of the LTM4600IV#PBF is based on a synchronous buck converter topology with integrated Schottky diode rectification. It has an internal MOSFET switch to boosts the voltage step down to regulated output voltage. The switching frequency of this converter can be programmed by an external resistor connected to an internal oscillator. It also has a logic-controlled power-saving standby option and an open-drain enable input for controlling the output voltage ON and OFF.

Conclusion

The LTM4600IV#PBF is a compact monolithic switching voltage converter that features a wide input voltage range, an adjustable output voltage, and a high switching frequency. Its many advantages include low noise, high efficiency, and excellent thermal performance. Its diminutive size and high power density make it ideal for high-current applications in mobile devices, battery-powered systems, industrial equipment, and power and motor control circuits.

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