LTC1929IG#PBF

Frequency - Switching:	--
Base Part Number:	LTC1929
Supplier Device Package:	28-SSOP
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Operating Temperature:	-40°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:	Tube

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LTC1929IG#PBF DC DC Switching Controllers

The LTC1929IG#PBF is a high-efficiency, DC-DC switching controller designed for high-power applications. This family of switching controllers provides a highly flexible, low-cost solution for a wide range of applications, including battery chargers and other high-steady-state power supplies, where it can provide high power efficiency and fast transient response.

Application Field

Typical applications of the LTC1929IG#PBF include:

• Battery chargers and power supplies
• Uninterruptible power supplies
• Communication systems
• Industrial automation controllers
• Power conversion systems

This product can also be used for buck, boost, and linear regulation in multiple power application scenarios, as well as for circuit-style switching power supplies.

Working Principle

The LTC1929IG#PBF is based on a current-mode control system, which provides numerous advantages over traditional voltage-mode regulation. Firstly, since the current-mode control system operates in continuous conduction mode, compared to voltage mode control, the current-mode system can achieve larger output voltage ripple and faster transient response. Secondly, due to the rapid response time of current sensing, the system can respond quickly to current overloads and short-circuit conditions. Finally, current-mode control provides a higher switching frequency, thus allowing higher efficiency.The typical operating range of the current-mode control system is from 0 to 600 kHz, which is suitable for producing output power up to 30W. The system is also equipped with an adjustable soft-start feature, which has lower startup current peaks as well as a reduced inrush current mechanism.This high-efficiency DC-DC switching controller can provide an optimal, cost-effective solution for high-power, high-efficiency applications. The current-mode control system allows for quick transient response and high efficiency, while the adjustable soft-start feature helps to reduce inrush current peaks and lower startup current. The flexible design of this product makes it suitable for semi-automated and automated production environments, as well as custom applications.

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