text.skipToContent text.skipToNavigation


7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator

Inventory: 13,288

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-260C-168 HR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
HSOIC (DDA) | 8 95 | TUBE
-40 to 125
Package | Pins HSOIC (DDA) | 8
Package qty | Carrier 95 | TUBE
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM25017

  • Wide 7.5-V to 48-V Input Range
  • Integrated 650-mA High-Side and
    Low-Side Switches
  • No Schottky Diode 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 1.225 V
  • Precision 2% Feedback Reference
  • Frequency Adjustable to 1 MHz
  • Adjustable Undervoltage Lockout (UVLO)
  • Remote Shutdown
  • Thermal Shutdown
  • Create a Custom Design Using the LM25017 With the WEBENCH® Power Designer

All trademarks are the property of their respective owners.

Description for the LM25017

The LM25017 device is a 48-V, 650-mA synchronous step-down regulator with integratedhigh-side and low-side MOSFETs. The constant on-time (COT) control scheme employed in the LM25017device requires no loop compensation, provides excellent transient response, and enables very highstep-down ratios. The on-time varies inversely with the input voltage resulting in nearly constantfrequency over the input voltage range. A high voltage startup regulator provides bias power forinternal operation of the IC and for integrated gate drivers.

A peak current limit circuit protects against overload conditions. The undervoltagelockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independentlyprogrammed. Other protection features include thermal shutdown and bias supply undervoltage lockout(VCC UVLO).

The LM25017 device is available in WSON-8 and HSOP-8 plastic packages.


Qty Price (USD)
1-99 2.388
100-249 2.092
250-999 1.467
1,000+ 1.182

Additional package qty | carrier options

Package qty | Carrier 250 | SMALL T&R
Inventory 20,565
Qty | Price (USD) 1ku | 1.133 1-99 2.289 100-249 2.005 250-999 1.406 1,000+ 1.133

Package qty | Carrier 2,500 | LARGE T&R
Inventory 34,724
Qty | Price (USD) 1ku | 0.985 1-99 1.99 100-249 1.743 250-999 1.222 1,000+ 0.985
Custom reel may be available