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2x1.5mm, 8-40V Wide Vin, 600mA, Constant On-Time Non-Synchronous Buck Regulator

NEW - Custom reel may be available
Inventory: 81,000  

Quality information

RoHS Yes
Lead finish / Ball material SNAGCU
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
DSBGA (YPA) | 10 3,000 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins DSBGA (YPA) | 10
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM34919

  • Integrated N-Channel buck switch
  • Integrated start-up regulator
  • Input Voltage Range: 8V to 40V
  • No loop compensation required
  • Ultra-Fast transient response
  • Operating frequency remains constant with load current and input voltage
  • Maximum switching frequency: 2.0 MHz
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable output voltage
  • Valley Current Limit At 0.64A
  • Precision internal reference
  • Low bias current
  • Highly efficient operation
  • Thermal shutdown
  • 10-Pin DSBGA Package

Description for the LM34919

The LM34919 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This buck regulator contains an N-Channel Buck Switch, and is available in a 10-pin DSBGA package. The constant on-time feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.


Qty Price (USD)
1-99 2.365
100-249 1.954
250-999 1.403
1,000+ 1.056

Additional package qty | carrier options

Package qty | Carrier 250 | SMALL T&R
Inventory 35,680
Qty | Price (USD) 1ku | 1.214 1-99 2.452 100-249 2.149 250-999 1.507 1,000+ 1.214