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LM3489Q - Hysteretic PFET Buck Controller

Download the LM3489Q datasheet PDF. This datasheet also covers the LM3489 variant, as both devices belong to the same hysteretic pfet buck controller family and are provided as variant models within a single manufacturer datasheet.

Description

The LM3489 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, cost effective, switching buck regulator for a wide range of applications.

Features

  • Easy to use control methodology No control loop compensation required Wide 4.5V to 35V input range 1.239V to VIN adjustable output range Typical.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3489_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LM3489 Hysteretic PFET Buck Controller
LM348 Quad 741 Op Amps LM149 Wide Band Decompensated (AV MIN = 5)
LM3480 100 mA/ SOT-23/ Quasi Low-Dropout Linear Voltage Regulator
LM3481 High Efficiency Low-Side N-Channel Controller
LM3485 Hysteretic PFET Buck Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin June 23, 2008 LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin General Description The LM3489 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, cost effective, switching buck regulator for a wide range of applications. The hysteretic control architecture provides for simple design without any control loop stability concerns using a wide variety of external components. The PFET architecture also allows for low component count as well as ultra-low dropout, 100% duty cycle operation. Another benefit is high efficiency operation at light loads without an increase www.DataSheet4U.com in output ripple.