X-On Electronics has gained recognition as a prominent supplier of LTC4257IS8-1#PBF Power Switch ICs - POE/LAN across the USA, India, Europe, Australia, and various other global locations. LTC4257IS8-1#PBF Power Switch ICs - POE/LAN are a product manufactured by Analog Devices. We provide cost-effective solutions for Power Switch ICs - POE/LAN, ensuring timely deliveries around the world.

LTC4257IS8-1#PBF Analog Devices

LTC4257IS8-1#PBF electronic component of Analog Devices
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Part No.LTC4257IS8-1#PBF
Manufacturer: Analog Devices
Category: Power Switch ICs - POE/LAN
Description: Power Switch ICs - POE / LAN IEEE802.3af PD Interface Controller
Datasheet: LTC4257IS8-1#PBF Datasheet (PDF)
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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1 : USD 7.2969
10 : USD 5.1496
50 : USD 4.8729
100 : USD 4.2119
200 : USD 3.843
500 : USD 3.4439
1000 : USD 2.9414
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We are delighted to provide the LTC4257IS8-1#PBF from our Power Switch ICs - POE/LAN category, at competitive rates not only in the United States, Australia, and India, but also across Europe and beyond. A long established and extensive electronic component distribution network has enhanced our global reach and dependability, ensuring cost savings through prompt deliveries worldwide. Client satisfaction is at the heart of our business, where every component counts and every customer matters. Our technical service team is ready to assist you. From product selection to after-sales support, we strive to deliver a seamless and satisfying experience. Are you ready to experience the best in electronic component distribution? Contact X-ON Electronics today and discover why X-On are a preferred choice for the LTC4257IS8-1#PBF and other electronic components in the Power Switch ICs - POE/LAN category and beyond.

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LTC4257-1 IEEE 802.3af PD Power over Ethernet Interface Controller with Dual Current Limit FEATURES DESCRIPTIO Complete Power Interface Port for IEEE 802 .3af The LTC 4257-1 provides complete signature and power Powered Devices (PDs) interface functions for a device operating in an IEEE Onboard 100V, 400mA Power MOSFET 802.3af Power over Ethernet (PoE) system. The LTC4257-1 Precision Dual Level Current Limit simplifies Powered Device (PD) design by incorporating Onboard 25k Signature Resistor with Disable the 25k signature resistor, classification current source, Programmable Classification Current (Class 0-4) input current limit, undervoltage lockout, thermal over- Undervoltage Lockout load protection, signature disable and power good signal- Thermal Overload Protection ling, all in a single 8-pin package. The LTC4257-1 includes Power Good Signal a precision, dual level current limit circuit. This allows it to Available in 8-Pin SO and Low Profile (3mm 3mm) charge large load capacitors and interface with legacy DFN Packages Power over Ethernet systems while maintaining compat- ibility with the current IEEE 802.3af specification. By U incorporating a high voltage power MOSFET onboard, the APPLICATIO S LTC4257-1 provides the system designer with reduced cost while also saving board space. IP Phone Power Management Wireless Access Points The LTC4257-1 can interface directly with a variety of Lin- Telecom Power Control ear Technology DC/DC converter products to provide a cost effective power solution for IP phones, wireless access points and other PDs. Linear Technology also provides network power controllers for Power Sourcing Equipment (PSE) applications. The LTC4257-1 is available in the 8-pin SO and low profile (3mm 3mm) DFN packages. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATIO Powered Device (PD) LTC4257-1 + 5F V IN ~ + GND SMAJ58A MIN 48V FROM SWITCHING POWER SOURCING DF01SA 0.1F R SIGDISA CLASS 100k POWER SUPPLY EQUIPMENT + (PSE) PWRGD SHDN ~ 3.3V R CLASS RTN TO LOGIC V V IN OUT 42571 TA01 42571fb 1 U ULTC4257-1 ABSOLUTE AXI U RATI GS (Notes 1, 2) Operating Ambient Temperature Range V Voltage ............................................. 0.3V to 100V IN LTC4257C-1 ............................................ 0C to 70C V , SIGDISA, OUT LTC4257I-1 ......................................... 40C to 85C PWRGD Voltage ...................... V + 100V to V 0.3V IN IN Storage Temperature Range R Voltage ............................ V + 7V to V 0.3V CLASS IN IN S8 Package....................................... 65C to 150C PWRGD Current .................................................. 10mA DD Package ...................................... 65C to 125C R Current .................................................. 100mA CLASS Lead Temperature (Soldering, 10 sec).................. 300C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW NC 1 8 GND NC 1 8 GND R 2 7 SIGDISA R 2 7 SIGDISA CLASS CLASS NC 3 6 PWRGD NC PWRGD 3 6 V V 4 5 IN OUT V 4 5 V IN OUT S8 PACKAGE DD PACKAGE 8-LEAD PLASTIC SO 8-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 150C/W JMAX JA T = 125C, = 43C/W JMAX JA EXPOSED PAD TO BE SOLDERED TO ELECTRICALLY ISOLATED PCB HEATSINK ORDER PART NUMBER S8 PART MARKING ORDER PART NUMBER DD PART MARKING* LTC4257CS8-1 42571 LTC4257CDD-1 LBFZ LTC4257IS8-1 4257I1 LTC4257IDD-1 Order Options Tape and Reel: Add TR Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking:

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