LTC1735IGN#PBF Linear Technology, LTC1735IGN#PBF Datasheet - Page 27

• 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

APPLICATIO S I FOR ATIO
the INTV
performance.
6) Keep the switching node (SW), top gate node (TG) and
boost node (BOOST) away from sensitive small-signal
nodes, especially from the voltage and current sensing
CC
and PGND pins can help improve noise
U
C
C
R
SS
C2
C
1000pF
U
47pF
C
C
C
OSC
1
2
3
4
5
6
7
8
W
C
RUN/SS
I
FCB
SGND
V
SENSE
SENSE
TH
OSC
OSENSE
LTC1735
–
+
Figure 12. LTC1735 Layout Diagram
Figure 13. Kelvin Sensing R
EXTV
INTV
BOOST
PGND
U
SW
V
BG
TG
CC
CC
IN
16
15
14
13
12
11
10
9
HIGH CURRENT PATH
R1
R2
SENSE
+
+
+
SENSE
C
4.7 F
feedback pins. All of these nodes have very large and fast
moving signals and therefore should be kept on the
“output side” (Pin 9 to Pin 16) of the LTC1735 and occupy
minimum PC trace area.
OUT
D
B
–
M1
C
SENSE
B
CURRENT SENSE
RESISTOR
(R
SENSE
R
L1
SENSE
1735 F13
)
D1
M2
C
IN
1735 F12
V
V
OUT
+
–
–
+
IN
LTC1735
27
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