LM5085SDE/NOPB Semiconductors - ICs by Texas Instruments

IC BUCK SWITCHING CONTROLLER LLP-8

Electronic & Electrical Components>Semiconductors - ICs>Power Management
Status: Unknown
Series: -
RoHS: Unknown
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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.

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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

Alternative Descriptions

4.5-75V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller | Texas Instruments

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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