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TEXAS INSTRUMENTS  LM5085MY/NOPB  DC/DC Controller, Constant On-Time, 4.5V to 75V, 1 Output, Buck, 1MHz, MSOP-8

TEXAS INSTRUMENTS LM5085MY/NOPB
Technical Data Sheet (10.11KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LM5085MY/NOPB is a non-synchronous constant on-time 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 4.5V to 75V 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 over-current detection.
  • No loop compensation required
  • Ultra-fast transient response
  • Nearly constant operating frequency with line and load variations
  • Internal soft-start timer
  • Integrated high voltage bias regulator
  • Thermal shutdown
  • Green product and no Sb/Br
This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

Supply Voltage Min:
4.5V
Supply Voltage Max:
75V
No. of Outputs:
1 Output
Duty Cycle (%):
100%
Controller IC Case Style:
MSOP
No. of Pins:
8Pins
Switching Frequency:
1MHz
Topology:
Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Power Management;
  • Automotive;
  • LED Lighting

Legislation and Environmental

Moisture Sensitivity Level:
-
Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000242

Alternatives

DC/DC Controller, Constant On-Time, 4.5V to 75V, 1 Output, Buck, 1MHz, MSOP-8

TEXAS INSTRUMENTS

48 in stock

Price for: Each (Supplied on Cut Tape)

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