LTC3729EG Linear Technology, LTC3729EG Datasheet - Page 6

• Manufacturer Part Number: LTC3729EG
• Description: IC SW REG SYNC STEP-DOWN 28-SSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3729EG

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5 V
• Current - Output: 5A
• Frequency - Switching: 1.1MHz
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC3729
TYPICAL PERFORMANCE CHARACTERISTICS
6
–0.1
–0.2
–0.3
–0.4
0.0
20
80
60
40
0
0
0
Load Regulation
Maximum Current Sense Threshold
vs V
V
SENSE(CM)
RUN/SS
1
1
= 1.6V
LOAD CURRENT (A)
2
(Soft-Start)
V
2
76
80
78
74
72
70
RUN/SS
–50 –25
Maximum Current Sense
Threshold vs Temperature
3
(V)
3
4
0
FCB = 0V
V
FIGURE 1
TEMPERATURE (°C)
IN
4
5
= 15V
3729
25
3729
G10
G13
6
5
50
75
2.5
0.5
2.0
1.5
1.0
80
76
68
64
60
72
0
100
0
0
V
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
3729
V
ITH
OSENSE
G17
125
vs V
1
COMMON MODE VOLTAGE (V)
1
= 0.7V
RUN/SS
2
V
2
RUN/SS
3
(V)
3
4
1.2
1.0
0.8
0.4
1.8
1.6
1.4
0.6
0.2
0
4
–50
5
RUN/SS Current vs Temperature
3729
3729
G14
–25
G11
5
6
0
TEMPERATURE (°C)
–100
–10
–20
–30
100
–50
25
90
80
70
60
50
40
50
30
20
10
0
0
0
0
Current Sense Threshold
vs I
SENSE Pins Total Source Current
50
V
TH
SENSE
0.5
Voltage
75
COMMON MODE VOLTAGE (V)
2
100
3729
1
V
ITH
G19
125
(V)
1.5
4
2
3729
3729
3729fb
G15
G12
2.5
6