LTC1735IGN#PBF Linear Technology, LTC1735IGN#PBF Datasheet - Page 28

• Manufacturer Part Number: LTC1735IGN#PBF
• Description: IC SW REG STEP-DOWN SYNC 16-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1735IGN#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 6 V
• Current - Output: 3A
• Frequency - Switching: 300kHz
• Voltage - Input: 4 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Number Of Pwm Outputs: 1
• On/off Pin: No
• Adjustable Output: Yes
• Topology: Boost/Buck/Flyback
• Switching Freq: 500KHz
• Duty Cycle: 99.4%
• Operating Supply Voltage (max): 36V
• Output Current: 3000A
• Output Voltage: 0.8 to 6V
• Synchronous Pin: Yes
• Rise Time: 50ns
• Fall Time: 50ns
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: SSOP N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant

LTC1735
TYPICAL APPLICATIO S
28
47pF
220pF
0.1 F
C
C
SS
C2
*OPTIONAL TO DEFEAT OVERCURRENT LATCHOFF
20k
47pF
R
220pF
C
0.1 F
C
C
1000pF
SS
C2
220pF
33k
C
R
C
C
C
OSC
1000pF
470pF
39pF
C
C
1
2
3
4
5
6
7
8
C
43pF
1.8V/5A Converter from Design Example with Burst Mode Operation Disabled
OSC
C
RUN/SS
I
FCB
SGND
V
SENSE
SENSE
TH
OSC
OSENSE
1
2
3
4
5
6
7
8
LTC1735
–
+
100k*
C
RUN/SS
I
FCB
SGND
V
SENSE
SENSE
CPU Core Voltage Regulator for 2-Step Applications (V
TH
OSC
OSENSE
U
EXTV
BOOST
INTV
LTC1735
PGND
–
+
SW
V
BG
TG
CC
CC
IN
EXTV
INTV
BOOST
PGND
16
15
14
13
12
11
10
9
SW
V
BG
TG
CC
CC
IN
V
IN
16
15
14
13
12
11
10
9
1 F
+
OPTIONAL:
CONNECT TO 5V
+
4.7 F
D
MBR0530
0.22 F
B
C
B
D
CMDSH-3
4.7 F
B
0.1 F
C
B
V
5V
4.5V TO 22V
IN
M1
FDS6680A
M2, M3
FDS6680A
2
V
MBRD835L
IN
0.78 H
M1
Si4412DY
M2
Si4410DY
MBRS140T3
L1
3.3 H
+
L1
C
150 F
6.3V
IN
2
R
0.004
SENSE
C
22 F
50V
CER
IN
R
0.01
SENSE
IN
= 5V)
1735 TA03
100pF
C
C
C
L1: COILCRAFT 1705022P-781HC
R
C
C
L1: PANASONIC ETQP6F3R3HFA
R
OUT
IN
O
SENSE
1735 TA02
: TAIYO YUDEN LMK550BJ476MM-B
OUT
IN
SENSE
: PANASONIC EEFUEOJ151R
: MARCON THCR70LE1H226ZT
: PANASONIC EEFUEOG181R
R2
32.4k
1%
R1
25.5k
1%
: PANASONIC EEFUEOG151R
: IRC LRF 2512-01-R004-J
R2
22.6k
1%
R1
25.5k
1%
: IRC LR 2010-01-R010F
SGND
+
SGND
+
C
150 F
6.3V
PANASONIC SP
OUT
2
C
180 F
4V
OUT
3
V
1.8V
5A
OUT
C
47 F
10V
O
V
1.5V
12A
OUT
1735fc