LT3460ESC6#TRMPBF

Voltage - Output (Min/Fixed):	1.255V
Base Part Number:	LT3460
Supplier Device Package:	SC-70-6
Package / Case:	6-VSSOP, SC-88, SOT-363
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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Introduction

The LT3460ESC6#TRMPBF integrated circuit is an advanced, non-synchronous, fixed-frequency, step-down converter ideal for a wide range of applications. By providing up to 2 A of output current and an adjustable switching frequency as low as 200 kHz, this device is ideal for fast transient response in a wide range of applications, such as cell phones, digital cameras, digital music players, and other handheld devices.

Features

The LT3460ESC6#TRMPBF integrated circuit features full Fault protection, temperature-compensated current-mode control, and low operating current. These features make it the perfect solution for many high-power, low-saturation-voltage, stepdown DC-DC converter applications.This device also provides a wide range of voltage-regulation options, such as wire-to-wire and single-wire voltage regulation, in addition to providing multiple output voltage selection options. These features make it very easy to integrate into existing designs.The device has an adjustable switching frequency of up to 2 MHz, allowing for very fast transient response and minimized output voltage ripple. It also features a two-level current-limit system, low-noise, and reduced switching losses, making it the ideal choice for many high-power, low-saturation-voltage step-down DC-DC converter applications.

Application Fields

The LT3460ESC6#TRMPBF integrated circuit is best suited for a wide range of applications. It is ideal for high-power, low-saturation-voltage, stepdown DC-DC converter applications, such as cell phones, digital cameras, digital music players, and other handheld devices. Its temperature-compensated current-mode control and low operating current also make it a good choice for point-of-load applications, as well as automotive and industrial applications.

Working Principle

The LT3460ESC6#TRMPBF DC-DC converter works on a fixed-frequency, pulse-width-modulated (PWM) switching scheme. In this scheme, an error amplifier and a comparator control the on-time of the power switch. When the output voltage is below the target voltage, the error amplifier provides an increased on-time for the power switch; when the output voltage is above the target voltage, it provides a decreased on-time for the switch. The error amplifier and comparator work together to ensure that the output voltage is kept at the target voltage. The device also features internal current-limit protection and thermal shutdown features to protect it from overcurrent and over-temperature conditions, respectively.

Conclusion

The LT3460ESC6#TRMPBF DC-DC converter is an advanced, non-synchronous, fixed-frequency, step-down converter designed for high-power, low-saturation-voltage applications. It features a wide range of voltage-regulation options and an adjustable switching frequency of up to 2 MHz. It provides multiple output voltage selection options and a two-level current limit system for maximum protection. It is ideal for many high-power, low-saturation-voltage, stepdown DC-DC converter applications, such as cell phones, digital cameras, digital music players, and other handheld devices.

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