LTC1436AIGN-PLL#TR Linear Technology, LTC1436AIGN-PLL#TR Datasheet - Page 24

• Manufacturer Part Number: LTC1436AIGN-PLL#TR
• Description: IC REG SW SYNC STEPDWN LN 24SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1436AIGN-PLL#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.19 ~ 9 V
• Current - Output: 50mA
• Frequency - Switching: 125kHz ~ 240kHz
• Voltage - Input: 3.5 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Other names: LTC1436AIGN-PLLTR

APPLICATIONS
LTC1436A
LTC1436-PLL-A/LTC1437A
TYPICAL APPLICATIONS
24
100pF
10k
10k
R
C
0.1µF
U
BOLD LINES INDICATE
HIGH CURRENT PATHS
C
43pF
C
0.1µF
C
1000pF
C
220pF
OSC
SS
C2
C
ON/OFF
1000pF
AUX
INFORMATION
**INPUT CAPACITOR MAY NOT BE NECESSARY IF
U
*CMDSH-3
10
11
12
3.3V SUPPLY HAS SUFFICIENT CAPACITANCE
100pF
9
2
3
4
7
6
8
R
R
LP
C
C
RUN/SS
I
V
SGND
V
SENSE
AUXON
AUXFB
SENSE
PLL LPF
TH
OSC
PROG
OSENSE
C
C
SS
C2
LTC1436A-PLL
1
Intel Mobile CPU VID Core Power Converter with 1.8V I/O Supply
+
–
1000pF
U
C
OSC
W
ON/OFF
OPEN
PLLIN
C
C
INTV
AUXDR
BOOST
AUX
LP
C
PGND
TGS
24
TGL
V
SW
BG
CC
IN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
18
21
19
20
17
22
16
15
13
Figure 15. LTC1437A Layout Diagram
EXTERNAL
FREQUENCY
SYNCHRONIZATION
PLL LPF
C
RUN/SS
LBO
LBI
I
SFB
SGND
V
V
NC
SENSE
SENSE
AUXON
TH
OUTPUT DIVIDER
OSC
PROG
OSENSE
REQUIRED WITH
+
V
0.1µF
U
4.7Ω
PRGM
–
+
4.7µF
LTC1437A
OPEN
*D
M3
IRLML2803
B
0.22µF
EXTV
AUXDR
BOOST
INTV
DRV
AUXFB
4.5V TO 22V
PLLIN
PGND
POR
TGS
TGL
SW
V
BG
CC
CC
CC
IN
V
IN
M2
Si4410DY
R1
R2
M1
Si4410DY
28
27
26
25
24
23
22
21
20
19
18
17
16
15
EXT CLOCK
CONNECTION
5V EXT V
3.3µH
+
L1
+
D1
MBRS140T3
D
B
4.7µF
CC
C
M3
OUT
20k
+
0.1µF
0.015Ω
R
C
SENSE
B
C
22µF
35V
X2
IN
M1
R
10.5k
L1
51pF
SENSE
47k
3
5
V
FB
CC
0 1 2
FROM µP
D1
7
LTC1706-19
VID
MMBT2907L
8 1 2
M2
3
+
SENSE
GND
C
4
IN
1437 F15
6
V
V
OUT
+
–
–
+
IN
47µF
4V**
47µF
4V
+
C
820µF
4V
× 2
OUT
V
1.3V TO 2V
7A
SGND
(PIN 6)
V
3.3V
V
1.8V
150mA
CORE
IN2
I/O
1436 TA09
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