LTC1735CF Linear Technology, LTC1735CF Datasheet - Page 6

• Manufacturer Part Number: LTC1735CF
• Description: IC SW REG SYNC STEP-DWN 20-TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1735CF

• 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: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC1735
TYPICAL PERFOR A CE CHARACTERISTICS
6
–100
280
250
300
290
270
260
–50
100
50
0
–40 –15
0
SENSE Pins Total Source Current
Oscillator Frequency
vs Temperature
C
OSC
V
SENSE
= 47pF
10
COMMON MODE VOLTAGE (V)
TEMPERATURE ( C)
2
35
100
60
90
80
70
50
40
30
20
10
0
60
0
Supply Current in Shutdown
vs V
4
85
RUN/SS
W
0.5
110
1735 G19
1735 G16
U
135
V
6
RUN/SS
1
2.5
2.0
1.5
1.0
0.5
–2
–1
–3
–4
–5
1.5
0
0
–40 –15
RUN/SS Pin Current
vs Temperature
0
I
TH
V
V
V
R
f
O
CONTINUOUS
RUN/SS
IN
OUT
SENSE
1735 G28
= 300kHz
Voltage vs Load Current
= 10V
= 3.3V
1
2
= 0.01
= 0V
MODE
10
TEMPERATURE ( C)
LOAD CURRENT (A)
Burst Mode
OPERATION
2
35
SYNCHRONIZED f = f
3
60
4
85
30
25
20
15
10
5
0
–50
Supply Current in Shutdown
vs Temperature
110
5
1735 G20
1735 G17
O
135
6
0
TEMPERATURE ( C)
–0.2
–0.4
–0.6
–0.8
–1.0
100
20
50
80
60
40
0
0
–40 –15
0
FCB Pin Current vs Temperature
Output Current vs Duty Cycle
f
V
SYNC
FCB
= 0.85V
= f
100
20
O
10
I
OUT
TEMPERATURE ( C)
1735 G29
DUTY CYCLE (%)
/I
40
MAX
35
150
(SYNC)
(FREE RUN)
60
I
OUT
60
/I
MAX
85
80
110
1735 G14
1735 G21
1735fc
100
135