CS5171

Boost Regulator, Positive, 1.5 A, 280 kHz

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.

Applications

DC-DC Boost
Multiple Output Flyback Supplies
Inverting Supplies

End Products

CCFL Backlight Driver

Features

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

Material Composition

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MSL Temp (°C)

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Topology

Control Mode

V_CC Min (V)

V_CC Max (V)

V_O Typ (V)

I_O Typ (A)

Efficiency (%)

f_SW Typ (kHz)

Pricing ($/Unit)

CS5171EDR8G

Active

SOIC-8

751-07

260

REEL

2500

Step-Up

Current Mode

2.7

3-39

1.5

275

$1.2467

CS5171GDR8G

Lifetime

SOIC-8

751-07

260

REEL

2500

Step-Up

Current Mode

2.7

3-39

1.5

275

$0.9225

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Converters | CS5171

Boost Regulator, Positive, 1.5 A, 280 kHz

Overview

Availability & Samples (size)

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