LTC1502CS8-3.3 datasheet(3/8 Pages) LINER

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LTC1502-3.3

TYPICAL PERFOR A CE CHARACTERISTICS

INPUT VOLTAGE (V)

0.8

1.6

1502-3.3 G01

1.0

1.2

1.4

1.8

TA = 25°C

TA = 0°C

TA = – 40°C

IOUT = 0mA

TA = 70°C

TA = 85°C

No Load Input Current

vs Input Voltage

OUTPUT CURRENT (mA)

0.01

3.30

3.35

TA = 25°C

VIN = 1V

100

1502-3.3 G03

3.25

3.20

0.1

3.40

VIN = 1.5V

VIN = 1.8V

Output Voltage vs Output Current

Shutdown Input Current

vs Input Voltage

INPUT VOLTAGE (V)

0.8

1.6

1502-3.3 G02

1.0

1.2

1.4

1.8

TA = 70°C

TA = 85°C

TA = 25°C

TA = – 40°C

TA = 0°C

C1–/SHDN = 0V

Maximum Start-Up Load Current

vs Input Voltage

INPUT VOLTAGE (V)

0.8

1.6

1502-3.3 G04

1.0

1.2

1.4

1.8

TA = 25°C

Load Transient Response

200

µs/DIV

IOUT

0mA to 10mA

5mA/DIV

VOUT

AC COUPLED

50mV/DIV

Efficiency vs Output Current

OUTPUT CURRENT (mA)

0.01

100

1502-3.3 G05

0.1

100

TA = 25°C

VOUT = 3.3V

VIN = 1V

VIN = 1.25V

VIN = 1.5V

VIN = 1.8V

1502-3.3 G06

Oscillator Frequency

vs Input Voltage

Shutdown Waveforms

(See Figure 1)

Calculated Battery Life,

Battery = 2400mA • Hr AA Cell

INPUT VOLTAGE (V)

0.8

500

600

1.6

1502-3.3 G07

400

300

1.0

1.2

1.4

1.8

700

TA = 70°C

TA = – 40°C

TA = 25°C

TA = 85°C

TA = 0°C

AVERAGE LOAD CURRENT (mA)

0.001

100k

0.1

0.01

100

1502-3.3 G08

100

10k

100

µs/DIV

VOUT

2V/DIV

OFF

1502-3.3 G09

VIN = 1.25V

RLOAD = 10k

TA = 25°C

VCTRL

VIN = 1.25V

TA = 25°C

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