LT3460ES5#TRPBF

Voltage - Output (Min/Fixed):	1.255V
Base Part Number:	LT3460
Supplier Device Package:	TSOT-23-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	1.3MHz
Current - Output:	300mA (Switch)
Voltage - Output (Max):	36V
Series:	--
Voltage - Input (Max):	16V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Overview

The LT3460ES5#TRPBF IC is a high-performance, single-channel, synchronous DC/DC converter, specifically designed for low-voltage, high-current applications. Integrated features make the LT3460ES5#TRPBF an ideal choice for a wide range of DC/DC converters, including automotive, industrial, computer, and consumer electronics power supplies.

Application Field

The LT3460ES5#TRPBF is suitable for a wide array of power supply applications, including high-current, low-voltage DC/DC converters. It supports up to 3 A of average output current in a voltage step-down configuration and is ideal for multi-output and hot-swap applications. Its integrated 1.5 A gate driver can drive 20 V power MOSFETs at up to 10 ns rise and fall times.The device provides excellent output accuracy and stability in the 1.5 V to 12 V input voltage range and can easily support both positive and negative output voltages. The wide regulation window and precise reference voltage accuracy make the IC an ideal choice for automotive, industrial, computer and consumer electronics power supply applications.

Working Principle

The IC is based on a synchronous rectification architecture that uses an internal high-side and low-side MOSFET to step down the input voltage. The device uses a fixed 500 kHz switching frequency and supports a wide range of output voltage regulation windows.The device features adaptive on-time control to maintain excellent efficiency across a wide range of load currents. There is an integrated current-sensing circuit with selectable fixed current limits that protect the MOSFETs against overload conditions. The integrated overvoltage protection (OVP) circuit prevents the output from exceeding the programmed thresholds and helps to protect the system from ESD and electrical noise.The device also includes a power-good indicator that can be used to monitor the pass transistor’s status and enable accurate diagnosis of the power supply. It supports either logic-controlled enable or enable pin. The internal soft-start control allows the output voltage to slowly ramp up to its steady-state setpoint.

Conclusion

The LT3460ES5#TRPBF is a high-performance, single-channel, synchronous DC/DC converter designed for low-voltage, high-current applications. It is suitable for a wide array of power supply applications, including high-current, low-voltage DC/DC converters. Its integrated features, wide regulation window, and precise reference voltage accuracy make it an ideal choice for automotive, industrial, computer, and consumer electronics power supply applications.

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