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, and 100% duty cycle operation. Another benefit is high efficiency operation at light loads without an increase in output ripple. A dedicated Enable Pin (Enabled if left unconnected) provides a shutdown mode drawing only 7 µA.
Applications
| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | AN-1471 LM3489 Demonstration Board (Rev. A) | 25 Apr 2013 | |
| Certificate | LM3489EVAL/NOPB EU Declaration of Conformity (DoC) | 02 Jan 2019 |
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