LTC1628IG-PG Linear Technology, LTC1628IG-PG Datasheet - Page 5

• Manufacturer Part Number: LTC1628IG-PG
• Description: IC REG SW 2PHASE STEPDOWN 28SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1628IG-PG

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 220kHz
• 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
1000
800
600
400
200
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
60
20
80
40
0
0
0
0
Internal 5V LDO Line Reg
Maximum Current Sense Threshold
vs V
0
Supply Current vs Input Voltage
and Mode (Figure 13)
I
V
LOAD
SENSE(CM)
RUN/SS
5
5
1
SHUTDOWN
= 1mA
STANDBY
10
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
= 1.6V
(Soft-Start)
2
BOTH
CONTROLLERS ON
V
15
RUN/SS
15
3
20
20
(V)
4
25
25
W
5
30
30
1628 G07
1628 G04
1628 G10
U
35
35
6
250
200
100
150
75
50
25
64
50
80
76
72
68
60
0
0
0
0
Maximum Current Sense Threshold
vs Duty Factor
0
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
EXTV
CC
20
10
COMMON MODE VOLTAGE (V)
1
Voltage Drop
DUTY FACTOR (%)
CURRENT (mA)
40
20
2
60
30
3
80
40
4
1628 G08
1628 G11
1628 G05
LTC1628/LTC1628-PG
100
50
5
4.75
4.70
5.05
5.00
4.95
4.90
4.85
4.80
–10
–20
–30
80
70
60
50
40
30
20
10
90
80
70
60
50
40
10
30
20
0
0
– 50
0
0
Maximum Current Sense Threshold
vs Percent of Nominal Output
Voltage (Foldback)
INTV
Voltage vs Temperature
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
Current Sense Threshold
vs I
– 25
TH
CC
0.5
EXTV
Voltage
and EXTV
25
0
TEMPERATURE ( C)
CC
SWITCHOVER THRESHOLD
INTV
1
25
V
ITH
CC
50
CC
(V)
50
VOLTAGE
1.5
Switch
75
75
2
100
1628 G06
1628 G09
1628 G12
1628fb
5
125
100
2.5