LTM4646IY

Current - Output (Max):	10A, 10A
Base Part Number:	LTM4646
Supplier Device Package:	88-BGA (15x11.25)
Size / Dimension:	0.59" L x 0.44" W x 0.21" H (15.0mm x 11.3mm x 5.2mm)
Package / Case:	88-BBGA Module
Mounting Type:	Surface Mount
Efficiency:	96%
Operating Temperature:	-40°C ~ 125°C
Features:	OCP, OVP, SCP, UVLO
Applications:	ITE (Commercial)
Series:	LTM®, uModule®
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	0.6 ~ 5.5 V
Voltage - Output 1:	0.6 ~ 5.5 V
Voltage - Input (Max):	20V
Voltage - Input (Min):	4.5V
Number of Outputs:	2
Type:	Non-Isolated PoL Module
Part Status:	Active

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DC DC Converters: LTM4646IY Application Field and Working Principle

DC-DC converters are electronic devices that convert an input DC voltage to a different DC voltage output. They have become increasingly popular as they are used in a wide variety of applications for powering various electrical and electronic devices. The LTM4646IY is a DC-DC converter developed by Linear Technology Corporation. This article will look at the application field for the LTM4646IY and discuss the working principle behind this device.The LTM4646IY is a very high efficiency multi-channel DC/DC converter with a wide range of input voltages (from 4.5 V to 28 V). It can be used to power up to three output channels or step down from a higher voltage to a lower voltage. The device has a maximum output current of 2.5 amps and a maximum output voltage of 24 V. The LTM4646IY is designed to be used in applications such as motor control, lighting, robotics, medical and process control, consumer electronics and distributed power systems.The LTM4646IY has a single switching architecture which leads to high efficiency over a wide load and line range. It has a very low quiescent current of only 34µA and is designed for a high power density, making it an ideal choice for space-constrained applications.The working principle of the LTM4646IY is based on the concept of voltage scaling. The device operates by supplying regulated output voltages from a range of input voltages. It achieves this by taking the input voltage and varying the duty cycle of a switch to maintain the desired output voltage. The device also features an internal strap-mode controller, which helps improve efficiency over the entire operating range.The LTM4646IY is also highly integrated, which leads to reduced component count and smaller overall board area. It also features a programmable soft-start option, which allows users to customize the voltage ramp up of the output to prevent overshoot. It also has overvoltage protection (OVP) and output short-circuit protection to safeguard the system against excessive load conditions.In conclusion, the LTM4646IY is an ideal choice for power conversion in applications that require high efficiency, wide input voltage range, small size and protection from overvoltage and short-circuits. Its single switching architecture, high power density, integrated features and the programmable soft-start option make the LTM4646IY a great choice for many DC-DC converter applications.

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