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MP1530

Triple Output Step-Up Plus Linear Regulators for TFT Bias

Monolithic Power Systems 

MP1530 – TRIPLE OUTPUT STEP-UP PLUS LINEAR REGULATORS FOR TFT BIAS

TYPICAL PERFORMANCE CHARACTERISTICS

Circuit of Figure 3, VIN = 5V, VMAIN = 13V, IMAIN = 200mA, VGL = -8.5V, IGL = 10mA, VGH = 27V,

IGH = 10mA, TA = +25°C, unless otherwise noted.

Efficiency vs

Load Current

(Step-Up Converter Only)

100

VIN=5V

90

Step-Up Converter

Load Regulation

13.005

13.000

80

VIN=3.3V

70

60

50

12.995

12.990

12.985

12.980

12.975

40

30

1

VMAIN=7.5V

10

100

1000

LOAD CURRENT (mA)

12.970

12.965

1

10

100

IMAIN (mA)

1000

Negative Linear Regulator

Load Regulation

-8.465

-8.475

-8.485

-8.495

-8.505

-8.515

-8.525

-8.535

-8.545

-8.555

-8.565

0

10 20 30 40 50

IGL (mA)

Positive Linear Regulator

Load Regulation

27.05

27.03

27.01

26.99

26.97

26.95

26.93

26.91

26.89

26.87

26.85

0

10 20 30 40 50

IGH (mA)

Power-On Sequence

VEN

5V/div.

VMAIN

5V/div.

VGL

10V/div.

VGH

10V/div.

10ms/div.

Power-On Sequence

VCT

1V/div.

VMAIN

5V/div.

VGL

10V/div.

VGH

10V/div.

10ms/div.

MP1530 Rev. 1.4

www.MonolithicPower.com

4

5/19/2006

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© 2006 MPS. All Rights Reserved.

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