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Description

General part information

LP3874 Series

The LP3871 and LP3874 series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. Wide range of preset output voltage options are available. These ultra-low-dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The devices are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3871 and LP3874 to operate under extremely low dropout conditions.

Dropout Voltage:Ultra-low-dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 0.8-A load current.

Ground Pin Current:Typically 6 mA at 0.8-A load current.

Technical Specifications

Parameters and characteristics for this part

SpecificationLP3874ES-3.3
Control FeaturesEnable
Current - Output800 mA
Current - Quiescent (Iq)9 mA
Current - Supply (Max)15 mA
Mounting TypeSurface Mount
Number of Regulators1
Operating Temperature (Max)125 °C
Operating Temperature (Min)-40 °C
Output ConfigurationPositive
Output TypeFixed
Package Leads5 Leads
Package NameTO-263 (DDPAK-5), D2PAK
Protection FeaturesOver Current, Short Circuit, Over Temperature
PSRR (Maximum)73 dB
PSRR (Minimum)57 dB
Voltage - Input (Max)7 V
Voltage - Output (Min/Fixed)3.3 V
Voltage Dropout (Max)0.35 V

Pricing

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