Datasheets
NCP1581DR2G by: onsemi

Synchronous Buck Controller, High Frequency, PWM, for Tracking Applications, SOIC-14 NB, 2500-REEL

Part Details for NCP1581DR2G by onsemi

Results Overview of NCP1581DR2G by onsemi

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NCP1581DR2G Information

NCP1581DR2G by onsemi 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 NCP1581DR2G

Part # Distributor Description Stock Price Buy
DISTI # 86002797
Verical DC/DC Cntrlr Single-OUT Step Down 430kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 471 Package Multiple: 1 Date Code: 1501 Americas - 177500
  • 471 $0.7969
  • 500 $0.7630
  • 1,000 $0.7206
$0.7206 / $0.7969 Buy Now
DISTI # 86013779
Verical DC/DC Cntrlr Single-OUT Step Down 430kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 471 Package Multiple: 1 Date Code: 1001 Americas - 3904
  • 471 $0.7969
  • 500 $0.7630
  • 1,000 $0.7206
$0.7206 / $0.7969 Buy Now
DISTI # 86012594
Verical DC/DC Cntrlr Single-OUT Step Down 430kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 471 Package Multiple: 1 Date Code: 1301 Americas - 2500
  • 471 $0.7969
  • 500 $0.7630
  • 1,000 $0.7206
$0.7206 / $0.7969 Buy Now
DISTI # 86012891
Verical DC/DC Cntrlr Single-OUT Step Down 430kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 471 Package Multiple: 1 Date Code: 1201 Americas - 2141
  • 471 $0.7969
  • 500 $0.7630
  • 1,000 $0.7206
$0.7206 / $0.7969 Buy Now
Bristol Electronics   2434
RFQ
Rochester Electronics Switching Controller, Voltage-mode, 430kHz Switching Freq-Max, PDSO14 RoHS: Compliant Status: Obsolete Min Qty: 1 186045
  • 1 $0.6782
  • 25 $0.6646
  • 100 $0.6375
  • 500 $0.6104
  • 1,000 $0.5765
$0.5765 / $0.6782 Buy Now
Chip 1 Exchange INSTOCK 3081
RFQ

Part Details for NCP1581DR2G

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NCP1581DR2G Part Data Attributes

NCP1581DR2G onsemi
Buy Now Datasheet
Compare Parts:
NCP1581DR2G onsemi Synchronous Buck Controller, High Frequency, PWM, for Tracking Applications, SOIC-14 NB, 2500-REEL
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer ONSEMI
Part Package Code SOIC
Package Description SOIC-14
Pin Count 14
Manufacturer Package Code 751A-03
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 4 Weeks
Samacsys Manufacturer onsemi
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 20 V
Input Voltage-Min 7 V
Input Voltage-Nom 12 V
JESD-30 Code R-PDSO-G14
JESD-609 Code e3
Length 8.65 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 14
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) NOT SPECIFIED
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Surface Mount YES
Switcher Configuration PUSH-PULL
Switching Frequency-Max 430 kHz
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 3.9 mm

NCP1581DR2G Related Parts

NCP1581DR2G Frequently Asked Questions (FAQ)

  • A good PCB layout for optimal thermal performance involves placing the NCP1581DR2G near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the PCB. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Additionally, it's essential to keep the thermal path clear of other components and to use thermal vias to dissipate heat efficiently.

  • To ensure the NCP1581DR2G is properly biased, make sure to connect the EN pin to a stable voltage source (e.g., VCC) through a pull-up resistor. The recommended pull-up resistor value is between 1 kΩ and 10 kΩ. Also, ensure that the input voltage (VIN) is within the recommended operating range (4.5 V to 18 V) and that the output voltage (VOUT) is set correctly using the FB pin and the external resistive divider.

  • The maximum output current capability of the NCP1581DR2G is 1.5 A. However, the actual output current capability may be limited by the thermal performance of the device and the PCB. It's essential to ensure that the device is properly cooled and that the output current is within the recommended operating range to prevent overheating and ensure reliable operation.

  • To troubleshoot issues with the NCP1581DR2G, start by checking the input voltage (VIN) and output voltage (VOUT) using an oscilloscope or a multimeter. Verify that the input voltage is within the recommended operating range and that the output voltage is set correctly. Check for any signs of overheating, such as excessive temperature rise or thermal shutdown. Also, ensure that the device is properly biased and that the PCB layout is optimal for thermal performance. If the issue persists, consult the onsemi application note or contact their technical support for further assistance.

  • Yes, the NCP1581DR2G is suitable for high-reliability and automotive applications. It meets the AEC-Q100 qualification standard for automotive applications and is designed to operate in harsh environments. However, it's essential to follow the recommended operating conditions, PCB layout guidelines, and thermal management practices to ensure reliable operation in these applications.