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Power Circuits / Switching Regulator or Controllers / NCP1234BD65R2G
Datasheets
NCP1234BD65R2G by: onsemi

Controller, Fixed Frequency, Current Mode, for Flyback Converters, SOIC 7 CASE OUTLINE, 2500-REEL

Part Details for NCP1234BD65R2G by onsemi

Results Overview of NCP1234BD65R2G by onsemi

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

NCP1234BD65R2G Information

NCP1234BD65R2G 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 NCP1234BD65R2G

Part # Distributor Description Stock Price Buy
DISTI # 24T3367
Newark Controller, Fixed Frequency, Current Mode, For Flyback Converters/ Reel |Onsemi NCP1234BD65R2G RoHS: Not Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 1 $0.6570
  • 3,000 $0.6300
  • 6,000 $0.5730
  • 12,000 $0.5160
  • 18,000 $0.4960
  • 30,000 $0.4850
$0.4850 / $0.6570 Buy Now
DISTI # 14AC4617
Newark Pwm Controller, 65Khz, 28V, Soic-7, Input Voltage:-, Output Voltage:-, Output Current:500Ma, Sup... ply Voltage Min:-, Supply Voltage Max:28V, Controller Ic Case Style:Soic, No. Of Pins:7Pins, Frequency:65Khz, Operating Temperature Rohs Compliant: Yes |Onsemi NCP1234BD65R2G more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape 0
  • 1 $2.2400
  • 10 $1.3600
  • 25 $1.2400
  • 50 $1.1200
  • 100 $1.0000
  • 250 $0.9970
  • 500 $0.9920
$0.9920 / $2.2400 Buy Now
DISTI # NCP1234BD65R2GOSCT-ND
DigiKey IC OFFLINE SWITCH FLYBACK 7SOIC Min Qty: 1 Lead time: 16 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 281
In Stock
  • 1 $1.9700
  • 10 $1.2220
  • 25 $1.0272
  • 100 $0.8072
  • 250 $0.6991
  • 500 $0.6326
  • 1,000 $0.5769
  • 2,500 $0.5170
  • 5,000 $0.4800
  • 7,500 $0.4770
$0.4770 / $1.9700 Buy Now
DISTI # NCP1234BD65R2G
Avnet Americas Current Mode PWM Controller 500mA 7-Pin SOIC T/R - Tape and Reel (Alt: NCP1234BD65R2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 16 Weeks, 0 Days Container: Reel 0
  • 2,500 $0.5152
  • 5,000 $0.5037
  • 10,000 $0.4923
  • 15,000 $0.4808
  • 20,000 $0.4694
$0.4694 / $0.5152 Buy Now
DISTI # 863-NCP1234BD65R2G
Mouser Electronics Switching Controllers Fixed Freq (I) Mode For FlyBk Conv RoHS: Compliant 5933
  • 1 $1.9600
  • 10 $1.2200
  • 25 $1.0300
  • 100 $0.8080
  • 250 $0.7000
  • 1,000 $0.6160
  • 2,500 $0.5610
  • 7,500 $0.4770
$0.4770 / $1.9600 Buy Now
Future Electronics NOBRWN AREC OCP OVP 65KHZ RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 16 Weeks Container: Reel 0
Reel
  • 2,500 $0.4800
  • 5,000 $0.4700
  • 7,500 $0.4650
$0.4650 / $0.4800 Buy Now
Onlinecomponents.com Controller, Fixed Frequency, Current Mode, for Flyback Converters RoHS: Compliant 0
  • 2,500 $0.4892
  • 5,000 $0.4819
  • 7,500 $0.4711
  • 10,000 $0.4640
  • 15,000 $0.4571
$0.4571 / $0.4892 Buy Now
DISTI # 86014439
Verical AC to DC Switching Converter Flyback 65kHz T/R 7-Pin SOIC RoHS: Compliant Min Qty: 629 Package Multiple: 1 Date Code: 2101 Americas - 1913
  • 629 $0.5963
  • 1,000 $0.5631
$0.5631 / $0.5963 Buy Now
Rochester Electronics Switching Controller, Current-mode, 70kHz Switching Freq-Max, PDSO7 RoHS: Compliant Status: Active Min Qty: 1 1913
  • 1 $0.5300
  • 25 $0.5194
  • 100 $0.4982
  • 500 $0.4770
  • 1,000 $0.4505
$0.4505 / $0.5300 Buy Now
DISTI # NCP1234BD65R2G
Avnet Silica Current Mode PWM Controller 500mA 7Pin SOIC TR (Alt: NCP1234BD65R2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 17 Weeks, 0 Days Silica - 0
Buy Now
DISTI # NCP1234BD65R2G
EBV Elektronik Current Mode PWM Controller 500mA 7Pin SOIC TR (Alt: NCP1234BD65R2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 18 Weeks, 0 Days EBV - 0
Buy Now
LCSC 65kHz 9.5V28V SOIC-7 AC-DC Controllers and Regulators ROHS 2500
  • 1 $0.5780
  • 10 $0.4604
  • 30 $0.4022
  • 100 $0.3440
  • 500 $0.3082
  • 1,000 $0.2908
$0.2908 / $0.5780 Buy Now
Win Source Electronics IC REG CTRLR FLYBACK PWM 7SOIC 301300
  • 75 $0.6986
  • 175 $0.5733
  • 275 $0.5553
  • 375 $0.5374
  • 485 $0.5195
  • 645 $0.4658
$0.4658 / $0.6986 Buy Now

Part Details for NCP1234BD65R2G

NCP1234BD65R2G Part Data Attributes

Parametric Data
NCP1234BD65R2G onsemi
Buy Now Datasheet
Compare Parts:
NCP1234BD65R2G onsemi Controller, Fixed Frequency, Current Mode, for Flyback Converters, SOIC 7 CASE OUTLINE, 2500-REEL
Select a part to compare:
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ONSEMI
Part Package Code SOIC 7 CASE OUTLINE
Pin Count 7
Manufacturer Package Code 751U
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 16 Weeks
Samacsys Manufacturer onsemi
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 28 V
Input Voltage-Min 10.5 V
Input Voltage-Nom 11 V
JESD-30 Code R-PDSO-G7
JESD-609 Code e3
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 7
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP7/8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 70 kHz
Temperature Grade AUTOMOTIVE
Terminal Finish MATTE TIN
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

Alternate Parts for NCP1234BD65R2G

This table gives cross-reference parts and alternative options found for NCP1234BD65R2G. 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 NCP1234BD65R2G, 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
NCP1234AD100R2G onsemi $0.9485 Controller, Fixed Frequency, Current Mode, for Flyback Converters, SOIC 7 CASE OUTLINE, 2500-REEL NCP1234BD65R2G vs NCP1234AD100R2G
NCP1237BD65R2G Rochester Electronics LLC Check for Price SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDSO7, HALOGEN FREE, BFR FREE AND ROHS COMPLIANT, SOIC-8/7 NCP1234BD65R2G vs NCP1237BD65R2G
NCP1238AD65R2G Rochester Electronics LLC Check for Price SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDSO7, HALOGEN FREE AND ROHS COMPLIANT, SOIC-7 NCP1234BD65R2G vs NCP1238AD65R2G
NCP1234BD100R2G onsemi $1.4085 Controller, Fixed Frequency, Current Mode, for Flyback Converters, SOIC 7 CASE OUTLINE, 2500-REEL NCP1234BD65R2G vs NCP1234BD100R2G
NCP1238BD65R2G Rochester Electronics LLC Check for Price SWITCHING CONTROLLER, 70kHz SWITCHING FREQ-MAX, PDSO7, HALOGEN FREE AND ROHS COMPLIANT, SOIC-7 NCP1234BD65R2G vs NCP1238BD65R2G
NCP1234AD65R2G onsemi Check for Price Controller, Fixed Frequency, Current Mode, for Flyback Converters, SOIC 7 CASE OUTLINE, 2500-REEL NCP1234BD65R2G vs NCP1234AD65R2G
NCP1218AD65R2G Rochester Electronics LLC Check for Price SWITCHING CONTROLLER, 68.25kHz SWITCHING FREQ-MAX, PDSO7, HALOGEN FREE & LEAD FREE, PLASTIC, SOIC-7 NCP1234BD65R2G vs NCP1218AD65R2G

NCP1234BD65R2G Related Parts

NCP1234BD65R2G Frequently Asked Questions (FAQ)

  • A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the heat sink. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Avoid placing thermal vias under the device, and ensure that the thermal pad is connected to a solid ground plane.

  • To ensure reliable start-up of the device, ensure that the input voltage rises monotonically and does not droop during start-up. A soft-start circuit can be used to limit the inrush current and ensure a reliable start-up. Additionally, ensure that the output voltage is properly decoupled with a capacitor to prevent oscillations.

  • A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the input capacitor. The capacitor should be placed as close to the device as possible to minimize parasitic inductance.

  • To optimize the output filter for minimum ripple and noise, use a low-ESR capacitor with a value of 10uF to 22uF, and a series inductor with a value of 1uH to 10uH. The output filter should be placed as close to the output pin as possible to minimize parasitic inductance.

  • For high-power applications, a heat sink with a thermal resistance of less than 10°C/W is recommended. The heat sink should be attached to the device using a thermal interface material with a thermal conductivity of at least 1 W/m-K. Ensure good airflow around the heat sink to maximize heat dissipation.