lt3473a Linear Technology Corporation, lt3473a Datasheet - Page 4

• Manufacturer Part Number: lt3473a
• Description: Micropower 1a Boost Converter With Schottky And Output Disconnect
• Manufacturer: Linear Technology Corporation

LT3473/LT3473A
TYPICAL PERFOR A CE CHARACTERISTICS
4
450
350
300
250
200
100
400
150
105
550
500
450
400
100
350
300
50
95
90
0
–50
–50
0
Sleep Mode Quiescent Current
Switch V
Schottky Forward Voltage
I
SHDN = 3V
V
D
IN
= 100mA
= 3V
200
SWITCH CURRENT (mA)
CE(SAT)
TEMPERATURE (°C)
TEMPERATURE (°C)
400
0
0
600
800
50
50
W
1000
3473 G07
3473 G10
3473 G04
U
1200
100
100
102
100
400
350
300
250
200
150
100
96
94
92
88
98
90
50
49
48
46
45
44
42
50
47
43
0
–50
0
0
Sleep Mode Quiescent Current
(Not Switching)
Switch Saturation Voltage
Output Disconnect Voltage Drop
I
SW
2
= 100mA
20
COLLECTOR CURRENT (mA)
4
INPUT VOLTAGE, V
TEMPERATURE (°C)
0
6
40
8
SHDN = 1.5V
SHDN = 3V
60
10
IN
50
(V)
12
80
90°C
25°C
–45°C
14
T
3473 G11
A
3473 G08
3473 G5
= 25°C unless otherwise noted.
100
100
16
1000
900
800
700
600
500
400
300
200
100
2.5
2.0
1.5
1.0
0.5
1.2
1.0
0.6
0.4
0.2
1.4
0.8
0
0
0
–50
SHDN Pin Current
Schottky I-V Characteristic
0
Switching Frequency
0
SHDN = 3V
V
IN
= 3V
SCHOTTKY FORWARD DROP (mV)
200
INPUT VOLTAGE, V
TEMPERATURE (°C)
5
0
400
600
10
50
IN
(V)
800
3473 G06
3473 G09
3473 G12
15
3473f
1000
100