LTC1929CG-PG#TRPBF

Frequency - Switching:	--
Base Part Number:	LTC1929
Supplier Device Package:	28-SSOP
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Operating Temperature:	0°C ~ 85°C (TA)
Control Features:	Enable, Power Good, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	99.5%
Series:	--
Voltage - Supply (Vcc/Vdd):	4 V ~ 36 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to LTC1929CG-PG#TRPBF

The LTC1929CG-PG#TRPBF is an integrated, energy efficient, 4A synchronous step-down buck regulator developed and marketed by Linear Technology. It is a power management solution specifically designed to improve efficiency and reduce board space in a wide range of DC-DC converter applications. It integrated digitally controlled buck switching regulator, regulator with power stage and other related components onto a single device to save cost and space.

Application Field of LTC1929CG-PG#TRPBF

The LTC1929CG-PG#TRPBF is most often used in portable consumer electronics due to its ability to deliver high power with highly efficient conversion. The device also enables designers to achieve high-power-density solutions with its low quiescent current, small size and high switching frequency. Additionally, the device is excellent for use in automotive applications, such as body computers, internal combustion engine control modules, active power steering, and powertrain systems.

Working Principle

The LTC1929CG-PG#TRPBF device is a 4A synchronous buck regulator which allows for power conversion from a higher input voltage to a lower output voltage. This is done by switching a portion of the higher input voltage through an inductor until the desired output voltage is reached. The device then switches to its low-side Integrated MOSFET until the voltage level reaches the desired output voltage. During this time, the power is stored in an external capacitor.The device provides a low quiescent current of only 144uA with output voltages ranging from 0.8V to 5V. It also provides with output voltage tracking and a fast loop response time of only 600ns. The device enables high-performance power conversion while meeting industry standards in terms of electrical safety.

Features

The LTC1929CG-PG#TRPBF device integrated several features in a single package: • 4A Switching Regulator • Digitally Controlled Buck Regulator • Power Stage • Low Quiescent Current • High Efficiency Conversion • Output Voltage Tracking • Thermal Protection • Undervoltage Lockout • Externally-Programmable Soft-Start • Highly Accurate References • Monitoring of Power Conversion and Voltage Level • Protection for Connected System against Overload, Short Circuits and Over/Under Voltage Conditions • Safety-Related Tests, Including UL60950 and IEC60950 Tests

Conclusion

The LTC1929CG-PG#TRPBF is an affordable, high-performance DC-DC switching controller widely used in consumer electronics, automotive systems and other power applications. With its low quiescent current and high switching speed, the LTC1929CG-PG#TRPBF is a reliable and efficient power solution. The device is also equipped with several protection systems and protection related tests, making it safe and reliable to use in a wide range of applications.

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