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Scalable 2-Phase Synchronous Buck Controllers with Integrated FET Drivers & Linear Reg Controller


Package | PIN: RTV | 32
Temp: S (-5 to 125)
Carrier: Cut Tape
Qty Price
1-9 $5.30
10-24 $4.77
25-99 $4.45
100-249 $3.99
250-499 $3.73
500-749 $3.24
750-999 $2.81
1000+ $2.75


  • Wide Input Voltage Range of 4.5V to 18V
  • Up to 12 Channels for 300A Load
  • System Accuracy Better Than 1%
  • 0.6V to 3.6V Output Voltage Range
  • Switching Frequency From 200 kHz to 1 MHz
  • Phase Current Sharing ±12% Max Over Temperature
  • Integrated 4.35V ±2.3% LDO
  • Inductor DCR or Sense Resistor Current Sensing
  • Interleaved Switching for Low I/O Ripple Current
  • Integrated Synchronous NFET Drivers
  • Programmable Soft-Start
  • Pre-Biased Startup
  • Output Voltage Differential Remote Sensing
  • Minimum Controllable On-Time of Only 50 ns
  • Programmable Enable and Input UVLO
  • Power Good flag
  • OVP, UVP and Hiccup Over-Current Protection

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Texas Instruments  LM3754SQ/NOPB

The LM3754 is a full featured single-output dual-phase voltage-mode synchronous PWM buck controller. It can be configured to control from 2 to 12 interleaved power stages creating a single high power output. This controller utilizes voltage-mode control with input voltage feed-forward for high noise immunity. An internal average current loop forces real time current sharing between phases during load transients.

The LM3754 supports adjustable Soft-Start. The Soft-Start function can only drive the output upwards – it will not pull it down, therefore, pre-biased loads will not be discharged. Available in the 5 mm x 5 mm thermally enhanced 32-lead WQFN package with a thermal pad.