lt3467aes67 Linear Technology Corporation, lt3467aes67 Datasheet - Page 4

• Manufacturer Part Number: lt3467aes67
• Description: 1.1a Step-up Dc/dc Converter With Integrated Soft-start
• Manufacturer: Linear Technology Corporation

LT3467/LT3467A
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
6
5
4
3
2
1
0
0
–40
0
10
0
Quiescent Current vs
Temperature
Current Limit vs Duty Cycle
Soft-Start Current vs Soft-Start
Voltage
T
–25
A
50
= 25°C
20
GUARANTEED
–10
100
30
5
150
TEMPERATURE (°C)
20
200
40
V
35
DC (%)
SS
TYPICAL
250
50
(mV)
50
300
60
65 80
350
70
W
400
T
95 110
A
= 25°C
80
450
3467 G07
3467 G01
3467 G04
U
500
125
90
V
100mV
CESAT
/DIV
1.26
1.25
1.24
1.23
1.22
1.21
1.20
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–40
0
FB Pin Voltage vs Temperature
Switch Saturation Voltage vs
Switch Current
Peak Switch Current vs Soft-Start
Voltage
T
–25
A
50
= 25°C
–10
100
SW CURRENT 200mA/DIV
5
150
TEMPERATURE (°C)
20
200
V
35
SS
250
(mV)
T
50
A
300
= 85°C
65 80
350
T
A
400
T
= –40°C
95 110
A
= 25°C
450
3467 G05
3467 G08
3467 G02
500
125
0.5A/DIV
I
SUPPLY
2V/DIV
1V/DIV
V
SHDN
V
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
OUT
140
120
100
80
60
40
20
0
0
–50
0
Oscillator Frequency vs
Temperature
SHDN Current vs SHDN Voltage
Start-Up Waveform
(Figure 2 Circuit)
T
A
= 25°C
2
–25
4
TEMPERATURE (°C)
0
6
0.5ms/DIV
V
SHDN
8
25
(V)
10
LT3467
50
12
LT3467A
14
75
3467 G03
16
3467 G09
3467 G06
3467afc
100
18