lt1339 Linear Technology Corporation, lt1339 Datasheet - Page 4

• Manufacturer Part Number: lt1339
• Description: High Power Synchronous Dc/dc Controller
• Manufacturer: Linear Technology Corporation

LT1339
TYPICAL PERFORMANCE CHARACTERISTICS
4
190
180
170
160
150
140
130
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
–50
–50
–50
Boost Supply Current vs
Temperature
I
Temperature
Error Amplifier Voltage Gain vs
Temperature
12VIN
–25
–25
–25
Shutdown Current vs
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
W
100
100
100
1339 G01
1339 G04
1339 G07
U
125
125
125
1.252
1.251
1.250
1.249
1.248
1.247
1.246
2.6
2.4
2.2
2.0
1.8
1.6
1.4
18
17
16
15
14
13
12
11
10
–50
–50
–50
12V
Temperature
Reference Voltage vs
Temperature
Error Amplifier Transconductance
vs Temperature
–25
–25
–25
IN
Supply Current vs
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
100
100
100
1339 G05
1339 G08
1339 G02
125
125
125
5.01
5.00
4.99
4.98
350
325
300
275
250
225
200
60
55
50
45
40
35
30
–50
–50
–50
5V Reference Short-Circuit
Current vs Temperature
5V Reference Voltage vs
Temperature
Error Amplifier Maximum Source
Current vs Temperature
–25
–25
–25
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
sn1339 1339fas
100
100
100
1339 G03
1339 G09
1339 G06
125
125
125