LTC3121EDE#PBF

Voltage - Output (Min/Fixed):	2.2V
Base Part Number:	LTC3121
Supplier Device Package:	12-DFN (4x3)
Package / Case:	12-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	Up to 3MHz
Current - Output:	1.5A (Switch)
Voltage - Output (Max):	15V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tube

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LTC3121EDE#PBF is a high-efficiency, high-voltage synchronous buck DC/DC converter designed for maximum flexibility and extremely low quiescent current operation. It operates from an input voltage as low as 3.3V and can provide up to 2A of output current. With an efficient synchronous architecture and adjustable switching frequency, the LTC3121EDE#PBF can be easily configured to meet the needs of space-constrained applications. Its wide input range, adjustable output voltage and programmable soft-start make it ideal for low power and battery-powered applications.The LTC3121EDE#PBF is a synchronous buck converter ideal for powering a wide range of applications. It features a high efficiency synchronous transfer function, adjustable switching frequency to optimize system performance, and a wide input voltage range from 3.3V to 28V. The output voltage can be adjusted from 3V to 28V with a change in current regulation, allowing for a single device to be used across multiple applications. The output voltage is adjustable by adjusting an external voltage divider. The device also has programmable soft-start and selectable operating frequency. The LTC3121EDE#PBF is available in a 10-lead, 3mm x 3mm, DFN package.The LTC3121EDE#PBF uses synchronous operation for higher efficiency than diode rectifier buck converters. The synchronous P-channel MOSFET and N-channel MOSFET in the design operate out of phase with one another, allowing current to flow in both directions and resulting in higher efficiency. The N-channel MOSFET is turned off before the P-channel MOSFET is turned on and vice versa, enabling higher efficiency than diode rectifier buck converters. The synchronous operation of the device also results in a lower peak-to-peak input current ripple, which minimizes the EMI signature of the circuit.The device also includes a programmable soft-start feature, which allows the user to choose the desired turn-on ramp rate. This feature greatly reduces the inrush current at power up and minimizes the risk of the output voltage overshooting. It also prevents the output voltage from exceeding the input voltage, limiting the output large current transients and maximizing system reliability. The switching frequency is adjustable from 1Mhz to 2Mhz and can be further adjusted internally.The LTC3121EDE#PBF is ideal for low power, battery powered applications. With low quiescent current and low noise operation, the device offers power conversion efficiency greater than 95%. The device is also designed to be used in automotive applications and is able to withstand high temperature and vibration. The device is also EMI compliant and includes optional spread spectrum operation modes. The LTC3121EDE#PBF is a high efficiency synchronous buck converter that offers a robust design and high performance in low power applications. With its adjustable output voltage, programmable soft-start, wide input voltage range, and adjustable switching frequency, the device is ideal for those looking for a simple and flexible solution for their power management needs. With its low quiescent current and high efficiency, the device offers power conversion efficiency greater than 95%, making it an optimal choice for battery-powered applications.

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