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Power Circuits / Switching Regulator or Controllers / MP9943GQ-Z
Datasheets
MP9943GQ-Z by: Monolithic Power Systems

Switching Regulator, Current-mode, 5.5A, 410kHz Switching Freq-Max, PDSO8, QFN-8

Part Details for MP9943GQ-Z by Monolithic Power Systems

Results Overview of MP9943GQ-Z by Monolithic Power Systems

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MP9943GQ-Z Information

MP9943GQ-Z by Monolithic Power Systems 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.

Price & Stock for MP9943GQ-Z

Part # Distributor Description Stock Price Buy
DISTI # 1589-1753-1-ND
DigiKey IC REG BUCK ADJ 3A 8QFN Min Qty: 1 Lead time: 12 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 1597
In Stock
  • 1 $2.2800
  • 10 $1.6870
  • 25 $1.5396
  • 100 $1.3776
  • 250 $1.3003
  • 500 $1.2537
  • 1,000 $1.2153
  • 2,500 $1.1748
  • 5,000 $1.1504
$1.1504 / $2.2800 Buy Now
DISTI # MP9943GQ-Z
Avnet Americas Conv DC-DC Single Step Down 4V 30V 8-Pin QFN T/R - Tape and Reel (Alt: MP9943GQ-Z) RoHS: Compliant Min Qty: 5000 Package Multiple: 5000 Lead time: 24 Weeks, 0 Days Container: Reel 0
  • 5,000 $1.0870
  • 10,000 $1.0705
  • 20,000 $1.0539
  • 30,000 $1.0366
  • 40,000 $1.0199
$1.0199 / $1.0870 Buy Now
DISTI # 946-MP9943GQ-Z
Mouser Electronics Switching Voltage Regulators High Efficiency 3A peak,36V,Synchronous Step Down Converter with Power Good RoHS: Compliant 2465
  • 1 $3.4600
  • 10 $2.2100
  • 25 $1.8900
  • 100 $1.5200
  • 250 $1.3400
  • 500 $1.2200
  • 1,000 $1.1300
  • 2,500 $1.1100
  • 5,000 $1.0600
$1.0600 / $3.4600 Buy Now
DISTI # MP9943GQ-Z
Avnet Silica Conv DCDC Single Step Down 4V 30V 8Pin QFN TR (Alt: MP9943GQ-Z) RoHS: Compliant Min Qty: 5000 Package Multiple: 5000 Lead time: 26 Weeks, 0 Days Silica - 15000
Buy Now
New Advantage Corporation   RoHS: Compliant Min Qty: 1 Package Multiple: 5000 5000
  • 5,000 $1.7800
$1.7800 Buy Now
Vyrian Other Function Semiconductors 3497
RFQ

Part Details for MP9943GQ-Z

MP9943GQ-Z Part Data Attributes

Parametric Data
MP9943GQ-Z Monolithic Power Systems
Buy Now Datasheet
Compare Parts:
MP9943GQ-Z Monolithic Power Systems Switching Regulator, Current-mode, 5.5A, 410kHz Switching Freq-Max, PDSO8, QFN-8
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MONOLITHIC POWER SYSTEMS INC
Package Description QFN-8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 24 Weeks
Samacsys Manufacturer Monolithic Power Systems (MPS)
Additional Feature ALSO OPERATES IN PFM CONTROL TECHNIQUE; ADJUSTABLE OUTPUT MODE FROM 0.8 TO 28.5V
Analog IC - Other Type SWITCHING REGULATOR
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 30 V
Input Voltage-Min 4 V
Input Voltage-Nom 12 V
JESD-30 Code S-PDSO-N8
JESD-609 Code e3
Length 3 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current-Max 5.5 A
Package Body Material PLASTIC/EPOXY
Package Code VSON
Package Shape SQUARE
Package Style SMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Cel) 260
Seated Height-Max 1 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 410 kHz
Temperature Grade AUTOMOTIVE
Terminal Finish MATTE TIN
Terminal Form NO LEAD
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 40
Width 3 mm

Alternate Parts for MP9943GQ-Z

This table gives cross-reference parts and alternative options found for MP9943GQ-Z. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of MP9943GQ-Z, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
MP4420HGJ-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.3A, 410kHz Switching Freq-Max, PDSO8, MO-193BA, TSOT-23, 8 PIN MP9943GQ-Z vs MP4420HGJ-Z
MP4423HGQ Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.5A, 410kHz Switching Freq-Max, PDSO8, 3 X 3 MM, MO-220, QFN-8 MP9943GQ-Z vs MP4423HGQ
MPQ4423HGQ-AEC1 Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, QFN-8 MP9943GQ-Z vs MPQ4423HGQ-AEC1
MPQ4423HGQ Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, QFN-8 MP9943GQ-Z vs MPQ4423HGQ
MPQ4423GQ-AEC1 Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, 3 X 3 MM, MO-220, QFN-8 MP9943GQ-Z vs MPQ4423GQ-AEC1
MPQ4423GQ-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, 3 X 3 MM, MO-220, QFN-8 MP9943GQ-Z vs MPQ4423GQ-Z
MPQ4423HGQ-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, QFN-8 MP9943GQ-Z vs MPQ4423HGQ-Z
MPQ4423HGQ-AEC1-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, QFN-8 MP9943GQ-Z vs MPQ4423HGQ-AEC1-Z
MP4423HGQ-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.5A, 410kHz Switching Freq-Max, PDSO8, 3 X 3 MM, MO-220, QFN-8 MP9943GQ-Z vs MP4423HGQ-Z
MPQ4423GQ-AEC1-Z Monolithic Power Systems Check for Price Switching Regulator, Current-mode, 5.7A, 410kHz Switching Freq-Max, PDSO8, 3 X 3 MM, MO-220, QFN-8 MP9943GQ-Z vs MPQ4423GQ-AEC1-Z

MP9943GQ-Z Related Parts

MP9943GQ-Z Frequently Asked Questions (FAQ)

  • The MP9943GQ-Z can handle input voltages up to 24V, but it's recommended to keep it below 18V for optimal performance and reliability.

  • To minimize EMI, keep the input and output capacitors close to the IC, use a solid ground plane, and keep the high-current paths short and wide. Also, avoid routing sensitive signals near the inductor.

  • The recommended inductor value is 1.5uH to 3.3uH, and a shielded inductor with a low DCR (e.g., 0.5 ohms or less) is recommended for optimal performance.

  • The output voltage can be adjusted by changing the resistor divider ratio between the FB pin and the output voltage. A higher resistor value will increase the output voltage, while a lower value will decrease it.

  • The MP9943GQ-Z can deliver up to 3A of output current, but it's recommended to derate the output current based on the input voltage, output voltage, and ambient temperature.

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