LTC4267IGN datasheet(6/32 Pages) LINER

Part #	LTC4267IGN

Description	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC4267

6

4267fc

Reference Voltage vs

Temperature

Reference Voltage vs

Supply Voltage

Oscillator Frequency vs

Temperature

Oscillator Frequency vs

Supply Voltage

PVCC Undervoltage Lockout

Thresholds vs Temperature

PVCC Shunt Regulator Voltage vs

Temperature

IPVCC Supply Current vs

Temperature

TYPICAL PERFOR A CE CHARACTERISTICS

PVCC SUPPLY VOLTAGE (V)

6

799.0

799.2

799.6

799.8

800.0

801.0

800.4

7

8

8.5

4267 G11

799.4

800.6

800.8

800.2

6.5

7.5

9

9.5

TA = 25°C

PVCC ≤ VCLAMP1mA

TEMPERATURE (°C)

–50

–10

30

70

110

4267 G13

–30

10

50

90

PVCC = 8V

(WITH RESPECT TO PGND)

240

230

220

210

200

190

180

PVCC SUPPLY VOLTAGE (V)

6

190

194

198

202

6.5

7

7.5

8

4267 G14

8.5

206

210

192

196

200

204

208

9

TA = 25°C

TEMPERATURE (°C)

–50

5.0

5.5

6.5

7.0

7.5

10.0

8.5

–10

30

50

4267 G16

6.0

9.0

9.5

8.0

–30

10

80

90

110

VTURNON

VTURNOFF

TEMPERATURE (°C)

–50

9.0

9.1

9.3

9.4

9.5

10.0

9.7

–10

30

50

4267 G17

9.2

9.8

9.9

9.6

–30

10

70

90

110

IPVCC = 1mA

TEMPERATURE (°C)

–50

215

220

230

235

240

265

250

–10

30

50

4267 G18

225

255

260

245

–30

10

70

90

110

PVCC = 8V

VITH/RUN = 1.3V

TEMPERATURE (°C)

–50

70

90

4267 G10

–10

10

–30

30

50

110

812

808

804

800

796

792

788

PVCC = 8V

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