LTC3545 datasheet(6/20 Pages) LINER

номер детали	LTC3545

подробное описание детали	Triple 800mA Synchronous Step-Down Regulator-2.25MHz

PDF	20 Pages

Scroll/Zoom	100%

производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

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LTC3545/LTC3545-1

35451fb

TYPICAL PERFORMANCE CHARACTERISTICS

Start-Up From Shutdown

Loaded

PFET RDS(ON) vs Supply Voltage

PFET RDS(ON) vs Temperature

NFET RDS(ON) vs Supply Voltage

Start-Up From Shutdown

No Load

Load Step Crosstalk

NFET RDS(ON) vs Temperature

200μs/DIV

ISUPPLY

1A/DIV

RUNX

5V/DIV

VOUT1

VOUT2

VOUT3

(ALL 1V/DIV)

3545 G13

TA = 25°C

VIN = 3.6V

ILOAD = 600mA, ALL CHANNELS

200μs/DIV

ISUPPLY

50mA/DIV

VOUT1

1V/DIV

VOUT2

1V/DIV

VOUT3

1V/DIV

3545 G14

TA = 25°C

VIN = 3.6V

ILOAD = 0, ALL CHANNELS

200μs/DIV

ILOAD CH1

50mA/DIV

VOUT2

2mV/DIV

VOUT3

2mV/DIV

VOUT1

100mV/DIV

3545 G15

TA = 25°C

VIN = 3.6V

500mA LOAD STEP IN CHANNEL1

CHANNELS 2 AND 3 LOADED AT 400mA EACH

SUPPLY VOLTAGE (V)

0.20

0.60

0.50

3545 G16

0.10

0.40

0.30

TA = 125°C

TA = 80°C

TA = 25°C

TA = 0°C

TA = –40°C

TEMPERATURE (°C)

–40

0.05

0.15

0.20

0.25

0.50

0.35

3545 G17

0.10

0.40

0.45

0.30

110

VIN = 2.5V

VIN = 3.5V

VIN = 5.5V

SUPPLY VOLTAGE (V)

0.20

0.60

0.50

3545 G18

0.10

0.40

0.30

TA = 125°C

TA = 80°C

TA = 25°C

TA = 0°C

TA = –40°C

TEMPERATURE (°C)

–40

0.05

0.15

0.20

0.25

0.50

0.35

3545 G19

0.10

0.40

0.45

0.30

110

VIN = 2.5V

VIN = 3.5V

VIN = 5.5V

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