LTC1522CS8 datasheet(3/8 Pages) LINER

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LTC1522

TYPICAL PERFORMANCE CHARACTERISTICS

INPUT VOLTAGE (V)

2.5

5.05

5.10

5.15

4.5

1522 G01

5.00

4.95

4.90

3.0

3.5

4.0

5.0

IOUT = 10mA

COUT = 10µF

TA = 70°C

TA = 25°C

TA = 0°C

INPUT VOLTAGE (V)

2.5

150

200

250

4.5

1522 G03

100

3.0

3.5

4.0

5.0

IOUT = 10mA

CFLY = 0.1µF

TA = 25°C

COUT = 6.8µF

COUT = 10µF

COUT = 22µF

COUT = 3.3µF

INPUT VOLTAGE (V)

2.5

4.5

1522 G02

3.0

3.5

4.0

5.0

IOUT = 10mA

TA = 25°C

Output Voltage vs Input Voltage

Efficiency vs Input Voltage

Output Ripple vs Input Voltage

No Load Input Current

vs Input Voltage

Typical Output Voltage

vs Output Current

OUTPUT CURRENT (mA)

5.0

5.1

1522 G05

4.9

4.8

5.2

VIN = 3.3V

VIN = 3V

VIN = 2.7V

TA = 25°C

CFLY = 0.1µF

COUT = 6.8µF

Load Transient Response

IOUT

0mA TO 10mA

10mA/DIV

VOUT

AC COUPLED

50mV/DIV

VIN = 3V

500

µs/DIV

1522 G06

COUT = 10µF

PIN FUNCTIONS

NC (Pin 1): No Connect.

VIN (Pin 2): Input Supply Voltage. Bypass VIN with a

≥3.3µF low ESR capacitor.

VOUT (Pin 3): 5V Output Voltage (VOUT = 0V in Shutdown).

Bypass VOUT with a ≥ 3.3µF low ESR capacitor.

C+ (Pin 4): Flying Capacitor, Positive Terminal.

C – (Pin 5): Flying Capacitor, Negative Terminal.

GND (Pin 6): Ground.

SHDN (Pin 7): Active High CMOS Logic-Level Shutdown

Input. Drive SHDN low to enable the DC/DC converter. Do

not float.

NC (Pin 8): No Connect.

INPUT VOLTAGE (V)

2.5

4.5

1522 G04

3.0

3.5

4.0

5.0

IOUT = 0mA

TA = 70°C

TA = 25°C

TA = 0°C

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