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  4. Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531 (Monolithic Power Systems, Inc.)
Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531-MP1531
Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531-Monolithic Power Systems, Inc.

Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP1531 is a triple output step-up converter with charge pump that makes a complete DC/DC converter for powering TFT LCD panels from a 2.7V to 5.5V supply. The MP1531 includes a 250kHz fixed frequency step-up converter and positive and negative linear regulators. The linear regulator is powered through a charge pump driven by the switch node of the step-up converter. A single on/off control enables all three outputs. For ease of use, the outputs are internally sequenced on power-up. Internal soft-start prevents input source overload during startup. Cycle-by-cycle current limiting reduces stress on the IC. The MP1531 is available in a small 16-pin QFN package (3mm x 3mm) and a 16-pin TSSOP package.

■Features and benefits

・Negative 10mA linear regulator ・Built-in 250mΩ power MOSFET switch ・95% efficiency ・1µ shutdown mode ・Fixed frequency of 250kHz ・Positive regulator up to 38V ・Negative voltage regulator up to -20V ・Internal power supply on sequence ・Adjustable soft start/failure timer ・Thermal shutdown ・Cycle-by-cycle overcurrent protection ・Low voltage malfunction prevention function ・Lady Flag ・16-pin TSSOP and QFN (3mm x 3mm) package

■Available product numbers

・MP1531DM-LF-P MP1531DM-LF-Z MP1531DQ-LF-P MP1531DQ-LF-Z MP1531DM-LF MP1531DQ-LF MP1531DQ-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531

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1 Models of Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531

Image Part Number Price (excluding tax) Down Mode Input/Output Disconnect Iq (typ) (mA) Isw Limit (typ) (A) P.G. Regulated Outputs SS Special Features Vfb (V) Vout (max) (V) Vout (min) (V) Fsw (max) (kHz) Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531-Part Number-MP1531

MP1531

Available upon quote

No

No

1.2

0.65

No

3

External

Integrated linear regulators

1.25

Twenty two

2.7

250

Catalog

QFN-16 (3x3), TSSOP-16

5.5

2.7

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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