3
LT1300
TYPICAL PERFOR
M
A
N
CE 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
200
µ
s/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
1
3
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
3.0
2.8
LT1300 G2
140
135
130
125
120
1.8
1.6
2.2
2.0
2.6
2.4
3.4
3.2
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
3
4
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
VOUT = 3.3V
ILIM FLOATING
V
OUT
= 5V
R
LOAD
= 20
Ω
LT1300 G9
500
µ
s/DIV
200mA
I
LOAD
