LM3485MM Semiconductors - ICs by Texas Instruments

BUCK CONTROLLER PFET SMD MSOP8

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Status:	Unknown
Series:	-
RoHS:	Unknown

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The LM3485 is a high-efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, low-cost, 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 ultralow dropout, 100% duty cycle operation. Another benefit is high efficiency operation at light loads without an increase in output ripple. Current limit protection is provided by measuring the voltage across the RDS(ON) of the PFET, thus eliminating the need for a sense resistor. The cycleby-cycle current limit can be adjusted with a single resistor, ensuring safe operation over a range of output currents.

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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	1.242V
Base Number	3485
Frequency	1MHz
Input Voltage	-0.3V
Input Voltage Max	36V
Operating Temperature Range	-40°C to +125°C
Output Current	4A
Output Current Max	0.44A
Termination Type	Surface Mount Device
Voltage Regulator Type	Buck

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The LM3485MM is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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