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LM5009MM

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 9.5V-95Vin, 2.5V-85Vout, 150mAout, VSSOP-8

TEXAS INSTRUMENTS LM5009MM

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Manufacturer Part No:
LM5009MM
Order Code:
1312791

Product Overview

The LM5009MM is a 150mA Non-synchronous Constant On-time Buck Regulator. This device is capable of driving a 150mA load current from a 9.5V to 95V input source. The switching frequency can exceed 600kHz, depending on the input and output voltages. This high-voltage regulator contains an N-channel buck switch and an internal start-up regulator. The LM5009 is a well-suited alternative to a high-voltage monolithic or discrete linear solution where the power loss becomes unacceptable. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum fold-back.
  • Integrated N-channel MOSFET
  • Ultra-fast transient response
  • No loop compensation required
  • VIN feed-forward provides constant operating frequency
  • Highly efficient operation
  • Internal start-up regulator
  • Intelligent current limit protection
  • External shutdown control
  • Thermal shutdown

Applications

Power Management, Automotive, LED Lighting

Product Information

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:
Buck (Step Down)

:
9.5V

:
95V

:
1Outputs

:
VSSOP

:
8Pins

:
150mA

:
2.5V

:
85V

:
600kHz

:
125°C

:
-

:
-

:
-
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Technical Docs (1)

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