LTC1502IS8-3.3 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1502IS8-3.3 Datasheet PDF : 8 Pages
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LTC1502-3.3
TYPICAL PERFOR A CE CHARACTERISTICS
No Load Input Current
vs Input Voltage
80
IOUT = 0mA
60
TA = 70°C
TA = 85°C
TA = 25°C
40
TA = 0°C TA = – 40°C
20
0
0.8 1.0 1.2 1.4 1.6 1.8
INPUT VOLTAGE (V)
1502-3.3 G01
Maximum Start-Up Load Current
vs Input Voltage
16
TA = 25°C
12
8
4
0
0.8 1.0 1.2 1.4 1.6 1.8
INPUT VOLTAGE (V)
1502-3.3 G04
Oscillator Frequency
vs Input Voltage
700
Shutdown Input Current
vs Input Voltage
16 C1–/SHDN = 0V
12
8
TA = 85°C
TA = 70°C
4
TA = 25°C
TA = – 40°C
TA = 0°C
0
0.8 1.0 1.2 1.4 1.6 1.8
INPUT VOLTAGE (V)
1502-3.3 G02
Output Voltage vs Output Current
3.40
TA = 25°C
3.35
VIN = 1.5V VIN = 1.8V
3.30
VIN = 1V
3.25
3.20
0.01
0.1
1
10
100
OUTPUT CURRENT (mA)
1502-3.3 G03
Efficiency vs Output Current
100
TA = 25°C
VOUT = 3.3V
80
VIN = 1V
VIN = 1.25V
60
VIN = 1.5V
VIN = 1.8V
40
Load Transient Response
IOUT
0mA to 10mA
5mA/DIV
VOUT
AC COUPLED
50mV/DIV
20
0
0.01
0.1
1
10
100
OUTPUT CURRENT (mA)
1502-3.3 G05
Calculated Battery Life,
Battery = 2400mA • Hr AA Cell
100k
VIN = 1.25V
TA = 25°C
200µs/DIV
1502-3.3 G06
Shutdown Waveforms
(See Figure 1)
600
TA = 85°C
TA = 70°C
TA = 25°C
500
TA = 0°C
400
TA = – 40°C
300
0.8
1.0 1.2 1.4 1.6 1.8
INPUT VOLTAGE (V)
1502-3.3 G07
10k
1k
100
10
0.001
0.01 0.1
1
10 100
AVERAGE LOAD CURRENT (mA)
1502-3.3 G08
VOUT
2V/DIV
OFF
VCTRL
ON
VIN = 1.25V
RLOAD = 10k
TA = 25°C
100µs/DIV
1502-3.3 G09
3
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