Boost Regulator, Negative, 1.5 A, 280 kHz

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Overview

The CS5171/2/3/4 products are 280 kHz/560 kHz switching regulators with a high efficiency, 1.5 A integrated switch. These parts operate over a wide input voltage range, from 2.7 V to 30 V. The flexibility of the design of the Boost Regulator allows the chips to operate in most power supply configurations, including boost, flyback, forward, inverting and SEPIC. The ICs utilize current mode architecture, which allows excellent load and line regulation, as well as a practical means for limiting current. Combining high frequency operation with a highly integrated regulator circuit results in an extremely compact power supply solution. The circuit design includes provisions for features such as frequency synchronization, shutdown, and feedback controls for either positive or negative voltage regulation. These parts are pin-to-pin compatible with LT1372 / 1373.

  • DC-DC Boost
  • Multiple Output Flyback Supplies
  • Inverting Supplies
  • CCFL Backlight Driver
  • Wide Input Range: 2.7V to 30V
  • High Frequency Operation
  • Minimum External Components
  • Easy External Synchronization
  • Built-in Overcurrent Protection
  • Frequency Foldback
  • Thermal Shutdown with Hysteresis
  • Integrated Power Switch: 1.5A Guaranteed
  • Pin-to-Pin Compatible with LT1372 / 1373
  • Wide Ambient Temperature Range
    -Industrial Grade: -40C to 85C
    -Commercial Grade: 0C to 70C
  • Shut Down Current: 50uA Maximum

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ECAD Models

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CS5172ED8G

Obsolete

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Step-Up

Current Mode

2.7

30

39

1.5

90

280

Price N/A

More Details

CS5172GDR8G

Obsolete

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Step-Up

Current Mode

2.7

30

39

1.5

90

280

Price N/A

More Details

CS5172EDR8G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

Step-Up

Current Mode

2.7

30

39

1.5

90

280

$1.1441

More Details

CS5172GD8G

Obsolete

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Step-Up

Current Mode

2.7

30

39

1.5

90

280

Price N/A

More Details

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