MAX17103ETJ Ver la hoja de datos (PDF) - Maxim Integrated

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MAX17103ETJ

DC-DC Converter with Integrated Scan Driver, VGL Controller, Op Amp, and LDO for TFT LCD

Maxim Integrated 

DC-DC Converter with Integrated Scan Driver,

VGL Controller, Op Amp, and LDO for TFT LCD

(TA = +25°C, unless otherwise noted.)

Typical Operating Characteristics

STEP-UP REGULATOR EFFICIENCY

vs. LOAD CURRENT

100

VIN = 5.0V

VIN = 3.0V

90

80

70

VIN = 2.3V

60

50

40

1

VMAIN = 8.5V

10

100

1000

LOAD CURRENT (mA)

STEP-UP REGULATOR OUTPUT LOAD

REGULATION vs. LOAD CURRENT

0.2

0.1

VIN = 2.3V

0

VIN = 5.0V

-0.1

-0.2

-0.3

VIN = 3.0V

-0.4

-0.5

1

10

100

1000

LOAD CURRENT (mA)

IN-SUPPLY QUIESCENT CURRENT

vs. IN SUPPLY VOLTAGE

4.0

3.5

SWITCHING

3.0

2.5

NOT SWITCHING

2.0

1.5

1.0

0.5

0

1.6

2.7

3.8

4.9

6.0

SUPPLY VOLTAGE (V)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

-40

IN-SUPPLY CURRENT

vs. TEMPERATURE

VIN = 5.0V

STEP-UP CONVERTER SWITCHING

FREQUENCY vs. INPUT VOLTAGE

1.40

1.35

STEP-UP CONVERTER PEAK INDUCTOR

CURRENT LIMIT vs. RENA

2.0

1.30

1.5

VIN = 3.3V

1.25

1.0

VMAIN = 8.5V

IMAIN = NO LOAD

VLDOO = 2.5V

ILDOO = NO LOAD

-15

10

35

60

85

TEMPERATURE (°C)

1.20

1.15

1.10

1.6

VMAIN = 8.5V

IMAIN = 200mA

2.7

3.8

4.9

6.0

INPUT VOLTAGE (V)

0.5 VIN = 3.3V

VMAIN = 8.5V

VLDOO = 2.5V

L1 = 10μH

0

0

50

100

150

200

RENA (kΩ)

STEP-UP REGULATOR

HEAVY-LOAD SOFT-START

MAX17103 toc07

LX

5V/div

0V

VMAIN

5V/div

0V

IL

500mA/div

STEP-UP REGULATOR LOAD-TRANSIENT

RESPONSE (20mA TO 300mA)

MAX17103 toc08

VLX

0V

10V/div

IL1

0A

1A/div

0mV

VMAIN (AC-COUPLED)

200mV/div

20ms/div

0A

EN

5V/div

0V

0mA

L1 = 10μH

IMAIN

200mA/div

100μs/div

RCOMP = 56.2kΩ

CCOMP = 1000pF

8 _______________________________________________________________________________________

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