LTC4267CDHC-3#PBF
ActivePOWER OVER ETHERNET IEEE 802.3AF PD INTERFACE WITH INTEGRATED 300KHZ SWITCHING REGULATOR
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LTC4267CDHC-3#PBF
ActivePOWER OVER ETHERNET IEEE 802.3AF PD INTERFACE WITH INTEGRATED 300KHZ SWITCHING REGULATOR
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC4267CDHC-3#PBF |
|---|---|
| Auxiliary Sense | False |
| Current - Supply | 3 mA |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Channels [custom] | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 16-WFDFN Exposed Pad |
| Power - Max [Max] | 12.95 W |
| Standards | 802.3af (PoE) |
| Supplier Device Package | 16-DFN (5x3) |
| Type | DC/DC, Controller (PD) |
| Voltage - Supply | 57 V |
| Part | Auxiliary Sense | Power - Max [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type | Package / Case | Package / Case [x] | Package / Case [y] | Current - Supply | Supplier Device Package | Voltage - Supply | Type | Internal Switch(s) | Standards | Number of Channels [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | 12.95 W | 70 °C | 0 °C | Surface Mount | 16-SSOP | 0.154 in | 3.9 mm | 3 mA | 16-SSOP | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||
Analog Devices Inc./Maxim Integrated | 12.95 W | 70 °C | 0 °C | Surface Mount | 16-WFDFN Exposed Pad | 3 mA | 16-DFN (5x3) | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||||
 Analog Devices Inc./Maxim Integrated | 12.95 W | 85 °C | -40 C | Surface Mount | 16-SSOP | 0.154 in | 3.9 mm | 3 mA | 16-SSOP | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||
 Analog Devices Inc./Maxim Integrated | 12.95 W | 85 °C | -40 C | Surface Mount | 16-WFDFN Exposed Pad | 3 mA | 16-DFN (5x3) | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||||
 Analog Devices Inc./Maxim Integrated | 12.95 W | 85 °C | -40 C | Surface Mount | 16-WFDFN Exposed Pad | 3 mA | 16-DFN (5x3) | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||||
Analog Devices Inc./Maxim Integrated | 12.95 W | 85 °C | -40 C | Surface Mount | 16-SSOP | 0.154 in | 3.9 mm | 3 mA | 16-SSOP | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||
Analog Devices Inc./Maxim Integrated | 12.95 W | 70 °C | 0 °C | Surface Mount | 16-WFDFN Exposed Pad | 3 mA | 16-DFN (5x3) | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 | ||||
Analog Devices Inc./Maxim Integrated | 12.95 W | 70 °C | 0 °C | Surface Mount | 16-SSOP | 0.154 in | 3.9 mm | 3 mA | 16-SSOP | 57 V | Controller (PD) DC/DC | 802.3af (PoE) | 1 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 1134 | $ 6.57 | 1m+ |
| Tube | 1 | $ 6.79 | 1m+ | |
| 10 | $ 4.61 | |||
| 25 | $ 4.04 | |||
| 100 | $ 3.41 | |||
| 250 | $ 3.10 | |||
| 500 | $ 2.92 | |||
| 1000 | $ 2.76 | |||
| 2500 | $ 2.60 | |||
Description
General part information
LTC4267-3 Series
The LTC4267-3 combines an IEEE 802.3af compliant Powered Device (PD) interface with a 300kHz current mode switching regulator, providing a complete power solution for PD applications. The LTC4267-3 integrates the 25k signature resistor, classification current source, thermal overload protection, signature disable and power good signal along with an undervoltage lockout optimized for use with the IEEE-required diode bridge. The LTC4267-3 provides an increased operational current limit, maximizing power available for class 3 applications.The 300kHz current mode switching regulator provides higher output power or smaller external size compared to its lower frequency counterparts. The LTC4267-3 is designed for driving a 6V rated N-channel MOSFET and features programmable slope compensation, soft-start, and constant-frequency operation, minimizing noise even with light loads. The LTC4267-3 includes an onboard error amplifier and voltage reference allowing use in both isolated and nonisolated configurations.The LTC4267-3 is available in a space saving, low profile 16-pin SSOP or DFN packages.ApplicationsIP Phone Power ManagementWireless Access PointsSecurity CamerasPower over Ethernet