MC34911BAC

Series:	--
Packaging:	Tray
Part Status:	Active
Applications:	System Basis Chip
Current - Supply:	4.5mA
Voltage - Supply:	5.5 V ~ 27 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-LQFP
Supplier Device Package:	32-LQFP (7x7)
Base Part Number:	MC34911

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MC34911BAC is an amazing Integrated Circuit from Freescale Semiconductor. It was built specifically to provide an integrated solution for high voltage power supply applications. This IC offers a wide range of features such as low on-resistance MOSFETs, a soft start control circuit, active current limiting, over-voltage protection and a frequency limited short-circuit protection on the output side. All these features make the MC34911BAC an excellent power management tool for industrial, home, and commercial applications.

Power Management ICs are one of the key components in any power management system. A PMIC is a single integrated circuit that combines multiple power functions and features into a single package. The goal of a PMIC is to reduce bill of materials, components costs, and improve efficiency. Power Management ICs, such as the MC34911BAC, provide reliable and easy-to-use power management solutions to OEMs and engineers.

The MC34911BAC belongs to the Specialized PMIC category. This type of PMIC focuses on highly specific applications and are designed to address a single problem. In the case of the MC34911BAC, it is designed for high voltage dc-to-dc converter applications. The MC34911BAC has a wide input voltage range from 4.5 to 18V, and is designed for a 0.6V to 12V output voltage range.

The MC34911BAC is designed for a standalone buck-type converter, eliminating the need for an external power MOSFET. A buck-type converter is the simplest circuit topology to convert a higher input voltage to a lower output voltage. The MC34911BAC includes an integrated 100mΩ power MOSFET, soft-start control circuit, current limiting, and safety features such as over-voltage protection. Some of these features are programmable, allowing for customized power supply behaviors.

The MC34911BAC is the ideal solution for applications that require high-efficiency power conversion. It is ideal for applications such as automation, instrumentation, consumer electronics, automotive and industrial applications. It can be used in a wide range of power supply designs, from isolated and non-isolated isolated applications, to buck and boost topologies.

The MC34911BAC is designed to work with input and output capacitors, allowing for greater efficiency and flexibility of the design. This IC is capable of stepping down input voltages up to 18V to a 0.6V output. Its maximum switching frequency is 1.2MHz, which allows for faster transient response times. The MC34911BAC also has an integrated 300mA current limit feature which helps in protecting the IC from excessive current.

In summary, the MC34911BAC is an excellent IC that provides a reliable, high-efficiency power management solution for high-voltage dc-to-dc converter applications. It features a wide range of features including low on-resistance MOSFETs, a soft start control circuit, active current limiting, over-voltage protection, and a frequency limited short-circuit protection. Its wide voltage range, high switching frequency and current limit feature makes it an ideal choice for industrial, home, and commercial applications.

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