Findchips Blog
Power Circuits / Power Management Circuits / TOP257PN
Datasheets
TOP257PN by: Power Integrations

Power Supply Support Circuit

Part Details for TOP257PN by Power Integrations

Results Overview of TOP257PN by Power Integrations

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.

Applications Industrial Automation Renewable Energy Robotics and Drones

TOP257PN Information

TOP257PN by Power Integrations is a Power Management Circuit.
Power Management Circuits 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 TOP257PN

Part # Distributor Description Stock Price Buy
DISTI # 62M0654
Newark Ac/Dcconv, Flyback, 30W, -40 To 150Deg C, Input Voltage Min:85Vac, Input Voltage Max:265Vac, Ic Case/Package:Dip-8C, No. Of Pins:7Pins, Power Rating Max:30W, Topology:Flyback, Isolation:Isolated, Power Switch Voltage Rating:700V Rohs Compliant: Yes |Power Integrations TOP257PN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 972
  • 1 $2.5600
  • 10 $2.3900
  • 100 $2.2100
  • 500 $2.0900
  • 1,000 $1.9600
$1.9600 / $2.5600 Buy Now
DISTI # 596-1185-5-ND
DigiKey IC OFFLINE SWITCH FLYBACK 8DIP Min Qty: 1 Lead time: 8 Weeks Container: Tube 230
In Stock
  • 1 $2.0000
  • 100 $1.6500
  • 1,000 $1.4000
$1.4000 / $2.0000 Buy Now
DISTI # TOP257PN
Avnet Americas - Rail/Tube (Alt: TOP257PN) COO: XX RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 8 Weeks, 0 Days Container: Tube 0
  • 1,000 $1.4286
  • 2,000 $1.3790
  • 4,000 $1.3720
  • 6,000 $1.3650
  • 8,000 $1.3580
$1.3580 / $1.4286 Buy Now
DISTI # TOP257PN
Avnet Americas - Rail/Tube (Alt: TOP257PN) COO: XX RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 8 Weeks, 0 Days Container: Tube 0
  • 1,000 $1.4286
  • 2,000 $1.3790
  • 4,000 $1.3720
  • 6,000 $1.3650
  • 8,000 $1.3580
$1.3580 / $1.4286 Buy Now
DISTI # 869-TOP257PN
Mouser Electronics AC/DC Converters Off-Line Switcher IC 30W/45W PK RoHS: Compliant 586
  • 1 $2.0000
  • 100 $1.6500
  • 1,000 $1.4000
$1.4000 / $2.0000 Buy Now
Future Electronics 30W/45W PK (85-264V AC) 41W/70W PK (230V AC) DIP-8 RoHS: Compliant pbFree: Yes Min Qty: 1000 Package Multiple: 50 Lead time: 8 Weeks Container: Tube 0
Tube
  • 50 $1.2900
  • 200 $1.2700
  • 500 $1.2600
  • 1,250 $1.2400
  • 2,000 $1.2200
$1.2200 / $1.2900 Buy Now
DISTI # TOP257PN
TME IC: PMIC, AC/DC switcher,SMPS controller, 59.4÷72.6kHz, DIP-8C Min Qty: 1 106
  • 1 $2.0300
  • 10 $1.8200
  • 50 $1.7000
  • 100 $1.6300
  • 500 $1.5700
  • 1,000 $1.5500
$1.5500 / $2.0300 Buy Now
DISTI # TOP257PN
Avnet Asia (Alt: TOP257PN) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 8 Weeks, 0 Days 5000
RFQ
Chip Stock ACtoDCSwitchingConverterOff-LineSwitcher7-PinPDIP-C 7500
RFQ
DISTI # TOP257PN
EBV Elektronik (Alt: TOP257PN) RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 10 Weeks, 0 Days EBV - 350
Buy Now
New Advantage Corporation   RoHS: Compliant Min Qty: 1 Package Multiple: 50 300
  • 50 $6.0000
  • 300 $5.5400
$5.5400 / $6.0000 Buy Now

US Tariff Estimator: TOP257PN by Power Integrations

Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.

TOP257PN
Power Integrations
Please specify a country of origin.
$
Please specify an import value in USD.
Estimator Results:
Tariff Percentage Tariff Calculation
Import Value
$.
Total Duty
$.
Total Estimate
$.
$.
Based on tariff data from

Part Details for TOP257PN

TOP257PN CAD Models

  • Part Symbol

    schematic symbol

  • Footprint

    pcb footprint

  • 3D Model

    2d presentation

Available Download Formats

Sign in to download CAD models Register or Sign In

By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy

TOP257PN Part Data Attributes

Parametric Data
TOP257PN Power Integrations
Buy Now Datasheet
Compare Parts:
TOP257PN Power Integrations Power Supply Support Circuit
Rohs Code Yes
Part Life Cycle Code Active
Package Description ,
Reach Compliance Code Compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 8 Weeks
Analog IC - Other Type Load Switch
JESD-609 Code e3
Qualification Status Not Qualified
Terminal Finish Matte Tin (Sn)
equivalents icon

TOP257PN Related Parts

TOP257PN Frequently Asked Questions (FAQ)

  • The maximum output power of the TOP257PN is 65W, but it can be derated based on the input voltage, output voltage, and ambient temperature.

  • To ensure the TOP257PN operates within its SOA, follow the guidelines in the datasheet for input voltage, output voltage, output current, and ambient temperature. Additionally, ensure proper thermal management and PCB layout to minimize thermal resistance and electromagnetic interference (EMI).

  • The BYPASS pin is used to connect a bypass capacitor to the internal voltage regulator, which helps to reduce the noise and ripple on the output voltage. It is recommended to connect a 10nF to 100nF capacitor between the BYPASS pin and the GND pin.

  • To optimize the transformer design for the TOP257PN, follow the guidelines in the datasheet for transformer turns ratio, primary inductance, and leakage inductance. Additionally, consider the core material, wire size, and winding technique to minimize losses and ensure efficient energy transfer.

  • The recommended input capacitor value for the TOP257PN is 1uF to 10uF, depending on the input voltage and output power requirements. A larger input capacitor can help to reduce input voltage ripple and improve system stability.

Share by Email

Something went wrong!
Please enter a valid e-mail address
Email sent!
Recipient Email:
Add a recipient
Hello!

We are passing along some cool findings on Findchips sent to you from .

The data is for TOP257PN by Power Integrations.
They’ve also added a data comparison to this page with by .

Click on the link below to check it out on Findchips.com.

Update Alert Settings for: TOP257PN by Power Integrations

Select Manufacturer
Which Manufacturer of TOP257PN would you like to use for your alert(s)?
Inventory Alert
  • Please alert me when TOP257PN inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for TOP257PN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
Pricing Alert
  • Please alert me when the single part price for TOP257PN to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for TOP257PN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Is at most 256 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for TOP257PN.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.

Compare TOP257PN by Power Integrations

Select a part to compare:
Part Number Manufacturer Description
No result found.
Something went wrong!
Or search for a different part: