LM3489MM Semiconductors - ICs by Texas Instruments

BUCK CONTROLLER PFET SMD MSOP8

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Status:	Unknown
Series:	-
RoHS:	Unknown

View Datasheet Manufacturer Site View Pricing & Stock

The LM3489 device 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 in output ripple. A dedicated enable pin provides a shutdown mode drawing only 7 µA. Leaving the enable pin unconnected defaults to on. Current limit protection can be implemented by measuring the voltage across the PFET’s RDS(ON), thus eliminating the need for a sense resistor. A sense resistor may be used to improve current limit accuracy if desired. The cycle-by-cycle current limit can be adjusted with a single resistor, ensuring safe operation over a range of output currents.

No distributors results available

View Full Pricing & Stock Comparison

Specifications

Supply Voltage Min	4.5V
Supply Voltage Max	35V
No. of Outputs	1 Output, 1Outputs
Duty Cycle (%)	100%
Controller IC Case Style	VSSOP
No. of Pins	8Pins
Switching Frequency	1MHz
Topology	Buck (Step Down)
Operating Temperature Min	-40°C
Operating Temperature Max	125°C
Product Range	-
Automotive Qualification Standard	-
RoHS Phthalates Compliant	Yes
MSL	-
SVHC	No SVHC (27-Jun-2018)
Adjustable Output Voltage Min	1.239V
Base Number	3489
Frequency	1MHz
Input Voltage Max	45V
Input Voltage Min	3.5V
Operating Temperature Range	-40°C to +125°C
Output Current	4A
Output Voltage	35V
Primary Input Voltage	35V
Termination Type	Surface Mount Device
Voltage Regulator Type	Buck

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM3489MM?

Additional datasheets, footprints and schematics for LM3489MM are listed on our Part Details page. You can also find images and similar parts to LM3489MM on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LM3489MM on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LM3489MM price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LM3489MM fall under?

The LM3489MM is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

You can view similar parts to LM3489MM when available in the Power Management range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LM3489MM you can contact the distributor directly for product support, shipping queries etc.

Is the LM3489MM RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LM3489MM have stock available?

There is no stock from authorised distributors for LM3489MM.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for LM3489MM often in real-time on the comparison pages.

What if I can't find stock of LM3489MM?

You can fill out our help required form which you can use to request a quote for LM3489MM from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.