LTC1735IS Linear Technology, LTC1735IS Datasheet - Page 8

• Manufacturer Part Number: LTC1735IS
• Description: IC REG SW STEP-DOWN SYNC 16-SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1735IS

• 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-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

PI FU CTIO S
LTC1735
V
resistive divider across the output.
SENSE
SENSE
offsets between SENSE
with R
PGOOD (LTC1735F Only): Open-Drain Logic Output.
PGOOD is pulled to ground when the voltage on the
V
EXTV
This switch closes and supplies V
EXTV
Applications Information section. Do not exceed 7V on
this pin and ensure EXTV
PGND: Driver Power Ground. Connects to the source of
bottom N-channel MOSFET, the anode of the Schottky
diode, and the (–) terminal of C
BG: High Current Gate Drive for Bottom
N-Channel MOSFET. Voltage swing at this pin is from
ground to INTV
8
OSENSE
OSENSE
U
CC
CC
SENSE
–
+
: Input to the Internal Switch Connected to INTV
: The (+) Input to the Current Comparator. Built-in
is higher than 4.7V. See EXTV
: Receives the feedback voltage from an external
: The (–) Input to the Current Comparator.
pin is not within 7.5% of its set point.
U
set the current trip threshold.
CC
.
U
–
and SENSE
CC
V
IN
IN
.
.
+
CC
CC
pins in conjunction
power whenever
connection in the
CC
.
INTV
Switch. The driver and control circuits are powered from
this voltage. Decouple to power ground with a 1 F ceramic
capacitor placed directly adjacent to the IC together with a
minimum of 4.7 F tantalum or other low ESR capacitor.
V
ground.
SW: Switch Node Connection to Inductor and Bootstrap
Capacitor. Voltage swing at this pin is from a Schottky
diode (external) voltage drop below ground to V
BOOST: Supply to Topside Floating Driver. The bootstrap
capacitor is returned to this pin. Voltage swing at this pin
is from a diode drop below INTV
TG: High Current Gate Drive for Top N-Channel MOSFET.
This is the output of a floating driver with a voltage swing
equal to INTV
SW.
IN
: Main Supply Pin. Must be closely decoupled to power
CC
: Output of the Internal 5.2V Regulator and EXTV
CC
superimposed on the switch node voltage
CC
to (V
IN
+ INTV
IN
CC
.
).
1735fc
CC