LTC1262CS8 datasheet(3/8 Pages) LINER

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LTC1262

TYPICAL PERFORMANCE CHARACTERISTICS

PI FU CTIO S

VOUT (Pin 6): 12V Output. Connect a 4.7µF bypass capaci-

tor COUT to ground. When in the shutdown mode VOUT =

VCC.

GND (Pin 7): Ground.

SHDN (Pin 8): Logic Level Shutdown Pin. Application of a

logic low at SHDN pin will place the regulator in normal

operation. With no external connection, or with SHDN tied

to VCC, the device will be put into shutdown mode. Connect

to GND for normal operation. In shutdown mode the

charge pump is turned off and VOUT = VCC.

Efficiency vs Output Current

Shutdown Supply Current

vs Temperature

Output Voltage vs Output Current

C1– (Pin 1): C1 Negative Input. Connect a 0.22

µF capaci-

tor C1 between C1+ and C1–.

C1+ (Pin 2): C1 Positive Input. Connect a 0.22

µF capaci-

tor C1 between C1+ and C1–.

C2 – (Pin 3): C2 Negative Input. Connect a 0.22

µF capaci-

tor C2 between C2+ and C2 –.

C2+ (Pin 4): C2 Positive Input. Connect a 0.22

µF capaci-

tor C2 between C2+ and C2 –.

VCC (Pin 5): Positive Supply Input Where 4.75V ≤ VCC

≤ 5.5V. Connect a 4.7µF bypass capacitor CIN to ground.

Supply Current vs Supply Voltage

SUPPLY VOLTAGE (V)

4.5

480

500

520

540

560

600

4.75

5.0

5.25

5.5

LTC1262 G03

5.75

6.0

580

TA = 70°C

IOUT = 0

TA = 25°C

TA = 0°C

OUTPUT CURRENT (mA)

LTC1262 G01

VCC = 4.75V

VCC = 5V

VCC = 5.5V

TEMPERATURE (

°C)

–50

0.6

1.2

1.8

2.4

3.6

–25

025

LTC1262 G02

100

3.0

VCC = 5V

OUTPUT CURRENT (mA)

10 15 20 25 30 35 40 45 50

12.2

12.0

11.8

11.6

11.4

11.2

11.0

10.8

10.6

10.4

10.2

1262 G04

VCC = 4.75V

VCC = 5.5V

VCC = 5V

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