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Details for LM3485MM/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
BUCK CONTROLLER PFET SMD MSOP8 REEL
LM3485MM/NOPB image

LM3485MM/NOPB by Texas Instruments

BUCK CONTROLLER PFET SMD MSOP8 REEL
Features
1.242-V to VIN Adjustable Output Range
100% Duty Cycle
4.5-V to 35-V Wide Input Range
Current Limit Protection
Easy-to-Use Control Methodology
High Efficiency 93%
Maximum Operating Frequency > 1 MHz
No Control-Loop Compensation Required
u00b11.3% (u00b12% Over Temp) Internal Reference
Part Information
LM3485MM/NOPB image
RoHS Compliant
Description
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.
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:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Min:
1.242V
Base Number:
3485
Frequency:
1MHz
Input Voltage Max:
36V
Input Voltage Min:
-3.6V
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
Alternate Descriptions
PFET buck power controller,LM3485MM RS Components
BUCK CONTROLLER, PFET, SMD, MSOP8, REEL; Supply Voltage Min:4.5V; Supply Voltage Max:35V; No. of Outputs:1 Output; Duty Cycle (%):100%; Controller IC Case Style:VSSOP; No. of Pins:8Pins; Switching Frequency:1MHz; Topology:Buck (Step RoHS Compliant: Yes Newark Electronics
DC DC Cntrlr Single-OUT Buck 4.5V to 35V Input 8-Pin MSOP T/R Avnet America
PMIC; DC/DC converter; Uin:4.5÷35V; Uout:3.258÷28.18V; VSSOP8 Transfer Multisort Elektronik
DC DC Cntrlr Single-OUT Buck 4.5V to 35V Input 8-Pin MSOP T/R Avnet Europe