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Home » NEWEST Products » New by Manufacturer » Texas Instruments » TI LM25017/8/9 48V Step-Down Regulators
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Texas Instruments LM25017/8/9 48V Step-Down Regulators
Texas Instruments LM25017/8/9 48V Step-Down Regulators

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Texas Instruments LM25017/8/9 48V Step-Down Regulators

Texas Instruments LM25017 / LM25018 / LM25019 are 48V synchronous step-down regulators with integrated high side and low side MOSFETs. The constant-on-time (COT) control scheme employed in the TI LM25017 / LM25018 / LM25019 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers. A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout (VCC UVLO).


Shared Features
  • Wide 9V to 48V Input Range
  • Integrated 48V, High and Low Side Switches
  • No Schottky Required
  • Constant On-time Control
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency
  • Intelligent Peak Current Limit
  • Adjustable Output Voltage from 1.225V
  • Precision 2% Feedback Reference
  • Frequency Adjustable to 1MHz
  • Adjustable Undervoltage Lockout
  • Remote Shutdown
  • Thermal Shutdown
Applications
  • Industrial Equipment
  • Smart Power Meters
  • Telecommunication Systems
  • Isolated Bias Supply
Part Number IOUT (Max) (mA) VIN (Min) (V) VIN (Max) (V) VOUT (Min) (V) VOUT (Max) (V)
LM25017 650 9 48 1.25 40
LM25018 325 9 48 1.25 40
LM25019 100 9 48 1.25 40

Typical Application

Typical Application
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  • Texas Instruments
  • Semiconductors|Integrated Circuits|IC-Power Management