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LTC1436AIGN Datasheet(PDF) 25 Page - Linear Technology

Part # LTC1436AIGN
Description  High Efficiency Low Noise Synchronous Step-Down Switching Regulators
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1436AIGN Datasheet(HTML) 25 Page - Linear Technology

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25
LTC1436A
LTC1436A-PLL/LTC1437A
TYPICAL APPLICATIONS
Intel Mobile CPU VID Core Power Converter with 1.8V I/O Supply
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
+
+
+
+
+
COSC
RUN/SS
LBO
LBI
ITH
SFB
SGND
VPROG
VOSENSE
SENSE–
SENSE+
AUXON
POR
BOOST
TGL
SW
TGS
VIN
INTVCC
BG
PGND
EXTVCC
AUXDR
AUXFB
COSC
68pF
CIN
22
µF
35V
× 2
CSEC
3.3
µF
35V
COUT
100
µF
10V
× 2
CC
510pF
M1
S4412DY
M2
Si4412DY
MBRS140T3
SGND
(PIN 7)
1436 TA02
T1
10
µH
1:1
47k
RSENSE
0.025
Ω
MBRS1100T3
VIN
4.5V TO 28V
2N2905A
VOUT2
5V
100mA
VOUT
3.3V
4A
M3
IRLML2803
4.7
µF
3.3
µF
R8
180k
R7
56k
R6
430k
R5
100k
51pF
0.1
µF
CMDSH-3
LTC1436A
1000pF
AUX
ON/OFF
RC
10k
CC2
51pF
CSS
0.1
µF
24V
LTC1436A 3.3V/4A Fixed Output with 5V Auxiliary Output
1436 TA09
+
+
CC
220pF
100pF
RC
10k
CSS
0.1
µF
COSC
43pF
1000pF
AUX
ON/OFF
L1
3.3
µH
RSENSE
0.015
Ω
VIN
4.5V TO 22V
VCORE
1.3V TO 2V
7A
VIN2
3.3V
SGND
(PIN 6)
0.22
µF
0.1
µF
10k
CIN
22
µF
35V
X2
4.7
µF
M1
Si4410DY
M2
Si4410DY
*DB
D1
MBRS140T3
CC2
1000pF
4.7
Ω
+
COUT
820
µF
4V
× 2
VCC
FB
0
12
VID
LTC1706-19
FROM
µP
3
7
36
5
81 2
4
GND
SENSE
VIN
2
3
4
7
6
8
INTVCC
COSC
EXTERNAL
FREQUENCY
SYNCHRONIZATION
SGND
VPROG
PLL LPF
PLLIN
VOSENSE
TGL
TGS
SW
AUXDR
PGND
BG
BOOST
RUN/SS
ITH
SENSE+
AUXON
AUXFB
SENSE–
LTC1436A-PLL
VI/O
1.8V
150mA
M3
IRLML2803
18
124
0.1
µF
21
19
20
17
22
16
15
13
9
10
11
12
47k
10.5k
20k
51pF
MMBT2907L
47
µF
4V**
*CMDSH-3
**INPUT CAPACITOR MAY NOT BE NECESSARY IF
3.3V SUPPLY HAS SUFFICIENT CAPACITANCE
47
µF
4V



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