LTC1628IG-SYNC#TR Linear Technology, LTC1628IG-SYNC#TR Datasheet - Page 5

• Manufacturer Part Number: LTC1628IG-SYNC#TR
• Description: IC REG SW 2PH SYNC STPDWN 28SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1628IG-SYNC#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 140kHz ~ 310kHz
• Voltage - Input: 3.5 ~ 30 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: -

TYPICAL PERFOR A CE CHARACTERISTICS
–0.1
–0.2
–0.3
–0.4
0.0
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
60
20
80
40
0
0
0
Internal 5V LDO Line Regulation
Maximum Current Sense Threshold
vs V
0
Load Regulation
I
V
LOAD
SENSE(CM)
RUN/SS
5
1
= 1mA
1
10
LOAD CURRENT (A)
INPUT VOLTAGE (V)
= 1.6V
(Soft-Start)
2
V
2
15
RUN/SS
3
20
(V)
3
4
25
W
FCB = 0V
V
FIGURE 1
4
IN
5
30
= 15V
1628 G07
1628 G13
1628 G10
U
35
5
6
2.5
2.0
1.5
1.0
0.5
75
50
25
64
80
76
72
68
60
0
0
0
0
Maximum Current Sense Threshold
vs Duty Factor
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
V
0
V
ITH
OSENSE
vs V
1
20
COMMON MODE VOLTAGE (V)
1
= 0.7V
RUN/SS
DUTY FACTOR (%)
2
40
V
2
RUN/SS
3
60
(V)
3
4
80
4
5
1628 G08
1628 G11
1628 G14
100
5
6
–100
–10
–20
–50
–30
100
50
80
70
60
50
40
30
20
10
90
80
70
60
50
40
10
30
20
0
0
0
0
0
0
Maximum Current Sense Threshold
vs Percent of Nominal Output
Voltage (Foldback)
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
Current Sense Threshold
vs I
SENSE Pins Total Source Current
LTC1628-SYNC
V
TH
SENSE
0.5
Voltage
25
COMMON MODE VOLTAGE (V)
2
1
V
ITH
50
(V)
1.5
4
75
2
1628syncfa
1628 G09
1628 G15
1628 G12
5
100
2.5
6