HomedatasheetLM2698

LM2698 Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators
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Description

The LM2698 is a general purpose PWM boost converter. The 1.9A, 18V, 0.2ohm internal switch enables the LM2698 to provide efficient power conversion to outputs ranging from 2.2V to 17V. It can operate with input voltages as low as 2.2V and as high as 12V. Current-mode architecture provides superior line and load regulation and simple frequency compensation over the device’s 2.2V to 12V input voltage range. The LM2698 sets the standard in power density and is capable of supplying 12V at 400mA from a 5V input. The LM2698 can also be used in flyback or SEPIC topologies.The LM2698 SIMPLE SWITCHER® features a pin selectable switching frequency of either 600kHz or 1.25MHz. This promotes flexibility in component selection and filtering techniques. A shutdown pin is available to suspend the device and decrease the quiescent current to 5µA. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. Switchers Made Simple® software is available to insure a quick, easy and guaranteed design. The LM2698 is available in a low profile 8-lead MSOP package. LM2698 Features • 1.9A, 0.2Ω, internal switch (typical)• Operating voltage as low as 2.2V• 600kHz/1.25MHz adjustable frequency operation• Switchers Made Simple® software• 8-Lead MSOP package LM2698 Applications • 3.3V to 5V, 5V to 12V conversion• Distributed Power• Set-Top Boxes• DSL Modems• Diagnostic Medical Instrumentation• Boost Converters• Flyback Converters• SEPIC Converters
Features

Parameters

[{"Name":"Number of Outputs ","Value":"1"},{"Name":"Voltage - Output ","Value":"2.2 V ~ 17 V "},{"Name":"Voltage - Input ","Value":"2.2 V ~ 12 V "},{"Name":"PWM Type ","Value":"Current Mode "},{"Name":"Frequency - Switching ","Value":"600kHz, 1.25MHz "},{"Name":"Current - Output ","Value":"1.9A"},{"Name":"Operating Temperature ","Value":"-40°C ~ 125°C "},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

FAIRCHILD SEMICONDUCTOR

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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