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Details for LM5085SDE/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
LM5085SDE/NOPB
Buy Directly from Texas Instruments (6623 in stock) $0.8600
IC BUCK SWITCHING CONTROLLER LLP-8
LM5085SDE/NOPB image

LM5085SDE/NOPB by Texas Instruments

IC BUCK SWITCHING CONTROLLER LLP-8
Features
Adjustable Current Limit Using RDS(ON) or a Current Sense Resistor
Adjustable Output Voltage from 1.25 V
Capable of 100% Duty Cycle Operation
Integrated High Voltage Bias Regulator
Internal Soft-start Timer
LM5085-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to 125u00b0C Operating Junction Temperature)
Nearly Constant Operating Frequency with Line and Load Variations
No Loop Compensation Required
Package:
Precision u00b12% Feedback Reference
Programmable Switching Frequency to 1MHz
Thermal Shutdown
Ultra-Fast Transient Response
Wide 4.5-V to 75-V Input Voltage Range
Part Information
LM5085SDE/NOPB image
RoHS Compliant
Description
The LM5085 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, efficient buck regulator for a wide range of applications. This high voltage controller contains a PFET gate driver and a high voltage bias regulator which operates over a wide 4.5-V to 75-V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultrafast load transient response. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The PFET architecture allows 100% duty cycle operation for a low dropout voltage. Either the RDS(ON) of the PFET or an external sense resistor can be used to sense current for overcurrent detection.
Specifications
Primary Input Voltage:
75V
No. of Outputs:
1
Output Voltage:
75V
Output Current:
500mA
No. of Pins:
8
Operating Temperature Range:
-40°C to +125°C
MSL:
MSL 1 - Unlimited
Alternate Descriptions
DC DC Cntrlr Single-OUT Buck 4.5V to 75V Input 8-Pin LLP EP T/R Avnet America
DC DC Cntrlr Single-OUT Buck 4.5V to 75V Input 8-Pin LLP EP T/R Avnet Europe
4.5-75V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller Texas Instruments