Datasheet

3
LT1300
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
No-Load Battery Current
Total Quiescent Current
in Shutdown
SWITCH CURRENT (A)
0 0.1
V
CESAT
(mV)
150
125
200
175
250
225
0.8 0.9
LT1300 G5
100
75
50
25
0
0.2 0.3
0.4 0.5
0.6 0.7
1
Maximum Output Current
vs Input Voltage
Maximum Output Current
vs Input Voltage
200µs/DIV
0
Transient Response
V
IN
= 2V, V
OUT
= 5V
Startup Response
V
CESAT
vs I
SW
Efficiency
Shutdown Pin Bias Current
V
OUT
100mV/DIV
AC COUPLED
V
OUT
1V/DIV
V
SHDN
10V/DIV
LT1300 G8
SHUTDOWN VOLTAGE (V)
0
0
SHUTDOWN CURRENT (µA)
2
6
8
10
20
14
2
4
5
LT1300 G4
4
16
18
12
13
6
7
8
T
A
= 25°C
LOAD CURRENT (mA)
1
74
EFFICIENCY (%)
76
78
80
82
10 100 1000
LT1300 G1
72
70
68
66
84
86
88
V
IN
= 3V
V
IN
= 2V
V
IN
= 2.5V
V
OUT
= 3.3V
L = 10µH
INPUT VOLTAGE (V)
1.4
INPUT CURRENT (µA)
150
145
160
155
170
165
3.02.8
LT1300 G2
140
135
130
125
120
1.81.6
2.22.0
2.62.4
3.43.2
V
OUT
= 5V
V
OUT
= 3.3V
INPUT VOLTAGE (V)
0
I
SHDN
+ I
VIN
+ I
SENSE
(µA)
40
50
60
8
LT1300 G3
30
20
0
2
4
6
10
80
70
1
3
5
7
INPUT VOLTAGE (V)
1.5
OUTPUT CURRENT (mA)
500
600
700
34
LT1300 G6
400
300
2
2.5
3.5 4.5
200
100
0
V
OUT
= 5V,
I
LIM
FLOATING
L = 22µH
COILCRAFT
DO3316-223
L = 10µH
COILCRAFT
DO1608-103
INPUT VOLTAGE (V)
1.5
0
LOAD CURRENT (mA)
100
300
400
500
2.5
3
3.5
900
LT1300 G7
200
2
600
700
800
L = 10µH
V
OUT
= 3.3V
I
LIM
FLOATING
V
OUT
= 5V
R
LOAD
= 20Ω
LT1300 G9
500µs/DIV
200mA
I
LOAD