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Power Circuits / Switching Regulator or Controllers / LM3754SQX/NOPB
Datasheets
LM3754SQX/NOPB by:
Texas Instruments
National Semiconductor Corporation
Texas Instruments
Not Found

4.5-V to 18-V, scalable 2-phase synchronous buck controller with integrated FET drivers 32-WQFN -5 to 125

Part Details for LM3754SQX/NOPB by Texas Instruments

Results Overview of LM3754SQX/NOPB by Texas Instruments

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LM3754SQX/NOPB Information

LM3754SQX/NOPB by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
LM3754SQX/NOPB Texas Instruments Scalable 2-Phase Synchronous Buck Controllers with Integrated FET Drivers & Linear Reg Controller 32-WQFN -5 to 125
LM8330TMX NOPB Texas Instruments LM8330 I2C-Compatible Keypad Controller with GPIO, PWM, and IEC61000 ESD Protection
LF347BN/NOPB Texas Instruments Wide Bandwidth Quad JFET Input Operational Amplifiers 14-PDIP 0 to 70

Price & Stock for LM3754SQX/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM3754SQX/NOPB-ND
DigiKey IC REG CTRLR BUCK 32WQFN Min Qty: 4500 Lead time: 12 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 4,500 $3.8856
$3.8856 Buy Now
DISTI # 926-LM3754SQX/NOPB
Mouser Electronics Switching Controllers 4.5-V to 18-V scala ble 2-phase synchron A 926-LM3754SQ/NOPB RoHS: Compliant 0
  • 4,500 $3.8400
$3.8400 Order Now

Part Details for LM3754SQX/NOPB

LM3754SQX/NOPB CAD Models

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LM3754SQX/NOPB Part Data Attributes

Parametric Data
LM3754SQX/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM3754SQX/NOPB Texas Instruments 4.5-V to 18-V, scalable 2-phase synchronous buck controller with integrated FET drivers 32-WQFN -5 to 125
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Control Mode VOLTAGE-MODE
Input Voltage-Max 18 V
Input Voltage-Min 4.5 V
JESD-30 Code S-PQCC-N32
JESD-609 Code e3
Moisture Sensitivity Level 3
Number of Outputs 1
Number of Terminals 32
Operating Temperature-Max 125 °C
Operating Temperature-Min -5 °C
Output Current-Max 50 A
Output Voltage-Max 3.6 V
Output Voltage-Min 0.6 V
Package Body Material PLASTIC/EPOXY
Package Code HVQCCN
Package Shape SQUARE
Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel) 260
Seated Height-Max 0.8 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 1000 kHz
Temperature Grade OTHER
Terminal Finish Matte Tin (Sn)
Terminal Form NO LEAD
Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) 30

LM3754SQX/NOPB Frequently Asked Questions (FAQ)

  • Texas Instruments recommends a 2-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to minimize thermal resistance. Additionally, placing the device near a thermal pad or heat sink can improve thermal performance.

  • To ensure reliable start-up and operation, it's recommended to add a soft-start circuit to limit the inrush current and prevent voltage drops. Additionally, using a high-quality input capacitor with low ESR and a sufficient voltage rating can help to filter out noise and ensure stable operation.

  • The maximum output current capability of the LM3754SQX/NOPB is 4A, but it's recommended to derate the output current based on the ambient temperature and the thermal performance of the PCB to ensure reliable operation.

  • To protect the device from overvoltage and undervoltage conditions, it's recommended to add overvoltage protection (OVP) and undervoltage protection (UVP) circuits. OVP can be implemented using a zener diode and a resistor, while UVP can be implemented using a voltage supervisor IC.

  • The recommended input capacitor value is 10uF to 22uF, and it's recommended to use a low-ESR ceramic capacitor or a film capacitor with a high ripple current rating to minimize voltage drops and ensure stable operation.