EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
TOP257EG Real Image
Same model may have multiple batches, images only for reference.

TOP257EG

Part No TOP257EG
Manufacturer Power Integrations
Catalog PMIC - AC DC Converters, Offline Switchers
Description IC OFFLINE SWIT PROG OVP 7CESIP
Datasheet
TOP257EG Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Power Integrations
Packaging Tube/Rail
Status Active
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Duty Cycle 78%
Frequency - Switching 66kHz, 132kHz
Power (Watts) 157W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Operating Temperature -40°C to 150°C (TJ)
Case / Package eSIP-7C
Mounting Through Hole
Win Source Part Number 1110939-TOP257EG
Popularity Medium
Supply and Demand Status Balance
Ultra Librarian 3D Model Ultra Librarian TOP257EG CAD Model

Description

The Power Integrations integrated circuit TOP257EG is a flyback topology with an output isolation and internal switch.

  • Product Name: TOP257EG
  • Manufacturer: Power Integrations
  • Topology: Flyback
  • Output Isolation: Yes
  • Internal Switch: Yes
  • Maximum Power: 157W
  • Breakdown Voltage: 700V
  • Duty Cycle: 78%
  • Switching Frequency: 66kHz, 132kHz
  • Fault Protection: Current Limiting, Over-Temperature, and Over-Voltage
  • Package: Tube/Rail
  • Mounting: Through-Hole
  • Operating Temperature: -40°C to 150°C (TJ)
  • Status: Active
  • Package Type: eSIP-7C
  • Category: Integrated Circuit
  • Popularity: Medium
  • Supply and Demand Status: Balanced

You May Also Be Interested in

Picture of TEA1731TS/1,115
TEA1731TS/1,115
NXP / Nexperia
Converter Offline Flyback Topology 27kHz ~ 65kHz SC-74
Lowest to $1.5860
TOP254PG Power Integrations – Price, Stock & Datasheet
TOP254PG
Power Integrations
Converter Offline Flyback Topology 66kHz 8-PDIP-C
Need more? Email Us
LM5046MHX/NOPB Real Image
LM5046MHX/NOPB
Texas Instruments
IC OFFLINE SW FULL-BRG 28TSSOP
Lowest to $8.4743
Picture of FSQ210M
FSQ210M
Fairchild/ON Semiconductor
IC OFFLINE SWITCH / Converter Offline Topology
Need more? Email Us
LNK306DN Power Integrations
LNK306DN
Power Integrations
IC OFFLINE SWITCH MULT TOP 8SO
Lowest to $0.5346
AP3706MTR-E1 Diodes Incorporated
AP3706MTR-E1
Diodes Incorporated
IC REG CONTROLLER ACDC / Converter Offline Flyback Topology 8-SOIC
Lowest to $0.1825
IW1790-09 Real Image
IW1790-09
Renesas Electronics America
IC OFFLIN CONV SEC SIDE SR 8SOIC
Lowest to $0.2341
LNK3206GQ-TL Power Integrations – Price, Stock & Datasheet
LNK3206GQ-TL
Power Integrations
Converter Offline Buck, Buck-Boost, Flyback Topology 66kHz SMD-8C
Lowest to $2.0563
AP3843CP-E1 Real Image
AP3843CP-E1
Diodes Incorporated
IC OFFLINE SWITCH 8DIP
Lowest to $0.2830

Top Sellers

74HC595D,118 label picture
74HC595D,118
Nexperia USA Inc.
Counter Shift Registers 8-bit serial-in, serial or parallel-out shift register with output latches; 3 - state
Lowest to $0.1371
LM5069MM-2/NOPB real image1604
LM5069MM-2/NOPB
Texas Instruments
IC CTRLR HOT SWAP 48V 10-MSOP
Lowest to $4.2767
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $11.4046
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $1.6632
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.7805
ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.2271
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $5.4647
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.8313
FT234XD-R real image
FT234XD-R
FTDI, Future Technology Devices International Ltd
USB-to-UART 1-CH 512byte FIFO 5V 12-Pin DFN EP T/R / IC USB SERIAL BASIC UART 12DFN
Lowest to $4.2767
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.7023
PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $30.8873
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0594
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $5.1796
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6155
Availability: Check Availability & Quote
Notify Me When Available

Shipping Information

Shipped from HK warehouse
Expected Shipping Date Get an estimate

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess