LTC4264
22
4264f
APPLICATIONS INFORMATION
Figure 12. High Effi ciency, Triple Output Power Supply
100k15k
0.015
1/8W
Si4488DY
Si4362DY
20k
3.01k
1%
91
22µF
16V
20k
1/4W
0.1µF
29.4k
1%
402k
R
CLASS
BAS21
2.1k
1%
150k
10k
680pF
10k
15
47
10
1/4W
10
B0540W
PA0184 BAT54
330
33pF
12µF
100V
0.1µF
100V
SMAJ58A
B2100 × 8 PLCS
2.2µF
100V
0.1µF
3300pF
2200pF
4700pF
250VAC
FMMT718 FMMT618
220pF 100V
0.1µF
1µF
25V
47µF
47µF
100µF
6.3V
3.3V
4A
0.33µH
PA1558NL
4264 F12
t
ON
SYNC
PGDLY
UVLO
SENSE
V
C
SENSE
+
R
CMP
ENDLY OSC SFST
LT3825
GND
SG
FB
V
CC
SG
SG
PG
C
CMP
GND
R
CLASS
I
LIM_EN
SHDN
PWRGD
PWRGD
LTC4264
V
IN
V
OUT
4.7µH
–54V FROM
DATA PAIR
–54V FROM
SPARE PAIR
0.33µH
1000pF
100V
+
100µF
6.3V
Si4488DY
22µF
16V
11.8V
0.4A
22µF
16V
10
1/4W
1500pF 100V
Si4470EY
47µF
5V
2.4A
+
+
LTC4264
23
4264f
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
DE Package
12-Lead Plastic DFN (4mm × 3mm)
(Reference LTC DWG # 05-08-1695 Rev C)
4.00 ±0.10
(2 SIDES)
3.00 ±0.10
(2 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE A VARIATION OF VERSION
(WGED) IN JEDEC PACKAGE OUTLINE M0-229
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
0.40 ± 0.10
BOTTOM VIEW—EXPOSED PAD
1.70 ± 0.05
(2 SIDES)
0.75 ±0.05
R = 0.115
TYP
R = 0.05
TYP
0.25 ± 0.05
3.30 ±0.05
(2 SIDES)
16
127
0.50
BSC
PIN 1 NOTCH
R = 0.20 OR
0.35 × 45°
CHAMFER
PIN 1
TOP MARK
(NOTE 6)
0.200 REF
0.00 – 0.05
(UE12/DE12) DFN 0905 REV C
0.25 ± 0.05
3.30 ±0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.70 ±0.05
(2 SIDES)2.20 ±0.05
0.50
BSC
0.70 ±0.05
3.60 ±0.05
PACKAGE OUTLINE
LTC4264
24
4264f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2007
LT 0307 • PRINTED IN USA
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Burst Mode is a registered trademark of Linear Technology Corporation. No R
SENSE
and ThinSOT are trademarks of Linear Technology Corporation.
+
SHDN
NC
R
CLASS
I
LIM_EN
V
IN
V
IN
GND
NC
PWRGD
PWRGD
V
OUT
V
OUT
1
2
3
4
5
6
12
11
10
9
8
7
LTC4264
NC
13
D15 B2100
PWRGD
V
OUT
V
OUT
+
OUT TO DC/DC
CONVERTER
R12
100k
R
CLASS
22.1
1%
R21
100k
R7
75
R18
100k
D8
D9
B2100 4 PLCS
B2100 4 PLCS
T3 ETH1-230LD
D7
TO
PHY
D6
D4
D5
D3
D2
1
2
3
4
5
6
14
PD IN
36V TO 57V
J1
SS-6488-NF-K1
13
12
11
10
9
R14
100k
C8
0.1µF
100V
C16
0.01µF
200V
C17
1000pF
2kV
R6
75
C15
0.01µF
200V
D1
SMAJ58A
Q5
FMMT23
C5
12µF
100V
D12 B2100
AC ADAPTER
24V
30W
+
R5
75
C14
0.01µF
200V
R4
75
IN
FROM
HIGH
POWER
PSE
C13
0.01µF
200V
1
2
3
6
4
5
7
8
LTC4264 with Auxiliary Supply

LTC4264CDE#PBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Power Switch ICs - POE / LAN IEEE 802.3af High Power PD Interface
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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