LM5176PWPR Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LM5176PWPR is a high performance, step-down DC-DC controller from the DC-DC Switching Controller category. This type of controller is commonly used in a variety of power supply and conversion applications that require high efficiency and fast transient response. Under controlled conditions, the switching frequency of the LM5176PWPR can be adjusted from 100 kHz to 1MHz, enabling low noise operation for a variety of applications. The wide input voltage range of 4.5 V to 48 V accommodates a wide range of operating conditions.

The LM5176 integrates a low side MOSFET and high side MOSFET gate drivers with a hysteretic control loop using Pulse Width Modulation (PWM) operation. The LM5176 can be operated across the full VIN range with quickly changing load current over a wide load range, eliminating the need to select different conversion regulators to accommodate differing input, load and power requirements. Additionally, this type of controller is capable of operating in buck, boost, and buck-boost topologies.

The LM5176PWPR is ideal for applications such as distributed power supplies, Point-of-Load (POL) converters, telecom and networking, automotive, industrial and general purpose power supplies. The high frequency operation and large output voltage range of the controller makes it suitable for small, low cost, high power density applications such as those found in computer and peripheral manufacturing. Additionally, the small package size of the LM5176PWPR makes it ideal for harnessing power from a large input voltage source. Applications may include server power systems, telecommunications, embedded applications, network switches and routers, base stations and others.

This device also incorporates advanced protection features to ensure safe operation. Features such as Lossless Current Limit (LCL), current mode control and peak current mode enable smooth operation even under extreme conditions. Additionally, the LM5176 has soft-start, under-voltage lockout, thermal shutdown and power-good features to ensure system level integrity.

The LM5176 is a highly integrated IC featuring a step down switching regulator, power MOSFET gate drivers, error amplifier, and synchronization logic. It is designed to convert a wide input voltage range (4.5 V to 48 V) to a regulated output voltage following a hysteretic control loop implemented with Pulse Width Modulation (PWM) regulators. The internally integrated high side and low side MOSFET gate drivers allows the controller to switch with fast rise and fall times producing high efficiency, while operating at frequency of 100 kHz to 1 MHz.

The LM5176 supports multiple topologies, allowing it to operate as a buck, boost or buck-boost regulator depending on the application needs. The device also incorporates precision trim voltage reference circuits, error amplifier and Lossless Current Limit (LCL) to provide smooth and clean output power conversion. The low current start-up, load transient response, and wide operating temperature range make this device a suitable choice for applications requiring efficiency at high power levels with tight output specifications such as telecom and networking, automotive, industrial and general purpose power supplies systems.

The LM5176 also contains a number of protection features to ensure system level safety. The device has Under Voltage Lockout (UVLO) protection which prevents the device from outputting an inaccurate voltage when the input voltage drops below a predetermined threshold. The Thermal Shutdown (TSD) feature prevents the device from overheating by disabling the power switch and clamping the output voltage if it exceeds a safe operating level. The Power Good (PG) feature is used to check if the output voltage is in regulation. If the output falls out of regulation, the PG pin is pulled low, disabling the gate driver and preventing the power switch from continuing to operate.

Overall, the LM5176PWPR is an efficient and high performance step-down DC-DC controller with robust protection features. This device is suitable for many applications such as distributed power supplies, Point-of-Load (POL) converters, telecom and networking, automotive, industrial and general purpose power supplies. This controller offers many advantages including high efficiency, low noise operation and a wide input voltage range. Furthermore, the device is capable of operating across the full VIN range with quickly changing load current over a wide load range, so it is suitable for applications requiring a high power density and tight output specifications.

The specific data is subject to PDF, and the above content is for reference