LT3750 datasheet(5/16 Pages) LINER

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LTC3226

3226fa

TYPICAL PERFORMANCE CHARACTERISTICS

LDO Output Transient Step

Response Waveform

Charge Pump Oscillator Frequency

vs VCPO and Temperature

Charge Pump Input Current

vs CPO Output Voltage

Charge Pump Charging Current

vs CPO Output Voltage

Charge Pump Input Current

vs VIN with CPO Grounded

LDO Load Regulation

LDO Supply Regulation

LDO Regulation Voltage

vs Temperature

LDO FET On-Resistance

vs CPO Voltage and Temperature

CPO VOLTAGE (V)

3.6

860

880

900

940

4.0

4.4

4.6

3226 G06

840

960

980

920

3.8

4.2

4.8

5.0

VIN = 3.3V

T = –45°C

T = 90°C

T = 25°C

CPO VOLTAGE (V)

150

200

250

3226 G07

100

300

350

400

RPROG = 33.3k

RPROG = 100k

RPROG = 50k

1x MODE

VIN = 3.8V

2x MODE

CPO VOLTAGE (V)

150

200

250

3226 G08

100

300

350

400

RPROG = 33.3k

RPROG = 100k

RPROG = 50k

1x MODE

VIN = 3.8V

2x MODE

VIN (V)

3.3

340

360

3.6

3.9

4.2

4.5

3226 G09

4.8

380

400

330

350

370

390

5.1

90°C

25°C

–45°C

RPROG = 33.2k

VCPO = 0V

IOUT (A)

3.280

3.290

3.300

3.275

3.285

3.295

0.001

0.1

3226 G01

3.270

0.01

CPO = 4V

VOUT SET TO 3.3V

CPO VOLTAGE (V)

3.4

3.280

3.285

3.295

3.300

3.305

3.6

4.4

4.8

3226 G02

3.290

3.310

4.2

5.2

3.8 4.0

4.6

5.0

IOUT = 10μA

VOUT SET TO 3.3V

TEMPERATURE (°C)

–45

3.305

3.315

115

3226 G03

3.295

3.285

–5

–25

3.325

3.300

3.310

3.290

3.320

VCPO = 5V

IOUT = 1mA

CPO VOLTAGE (V)

2.2

350

300

250

200

150

100

3.7

4.7

3226 G04

2.7

3.2

4.2

5.2

T = 90°C

T = –40°C

T = 25°C

LOAD = 500mA

VOUT

50mV/DIV

AC-COUPLED

1000mA

IOUT

500μs/DIV

3226 G05

500mA

TA = 25°C, unless otherwise noted.

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