LP3872

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Low-Dropout-Spannungsregler, 1,5 A, mit Power Good und Aktivierung

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Datenblatt

document-pdfAcrobat LP387x 1.5-A Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. H) (Englisch) PDF | HTML

LP3872

AKTIV

Datenblatt

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Produktdetails

Output options

Fixed Output

Iout (max) (A)

1.5

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 3.3, 5

Rating

Catalog

Noise (µVrms)

100

Iq (typ) (mA)

6

Thermal resistance θJA (°C/W)

40

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

1.5

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 3.3, 5

Rating

Catalog

Noise (µVrms)

100

Iq (typ) (mA)

6

Thermal resistance θJA (°C/W)

40

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

SOT-223 (NDC)

5

45.24 mm² 6.5 x 6.96

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

Input Voltage Range: 2.5 V to 7 V
Ultra Low-Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.06%
10-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5-A DC
Available in DDPAK/TO-263, TO-220, and
SOT-223 Packages
Output Voltage Accuracy ±1.5%
ERROR Flag for Output Status
Sense Option Improves Load Regulation
Minimum Output Capacitor Requirements
Overtemperature/Overcurrent Protection
−40°C to 125°C Junction Temperature Range

Input Voltage Range: 2.5 V to 7 V
Ultra Low-Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.06%
10-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5-A DC
Available in DDPAK/TO-263, TO-220, and
SOT-223 Packages
Output Voltage Accuracy ±1.5%
ERROR Flag for Output Status
Sense Option Improves Load Regulation
Minimum Output Capacitor Requirements
Overtemperature/Overcurrent Protection
−40°C to 125°C Junction Temperature Range

The LP387x 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 LP3872 and LP3875 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3872 and LP3875 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low-dropout voltage; typically 38 mV at 150-mA load current and 380 mV at 1.5-A load current.

Ground Pin Current: Typically 6 mA at 1.5-A load current.

Shutdown Mode: Typically 10-nA quiescent current when the SD pin is pulled low.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (LP3872 only).

SENSE: Sense pin improves regulation at remote loads (LP3875 only).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

The LP387x 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 LP3872 and LP3875 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3872 and LP3875 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low-dropout voltage; typically 38 mV at 150-mA load current and 380 mV at 1.5-A load current.

Ground Pin Current: Typically 6 mA at 1.5-A load current.

Shutdown Mode: Typically 10-nA quiescent current when the SD pin is pulled low.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (LP3872 only).

SENSE: Sense pin improves regulation at remote loads (LP3875 only).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

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	Typ	Titel		Datum
*	Data sheet	LP387x 1.5-A Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. H)	PDF \| HTML	27 Jan 2015

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
SOT-223 (NDC)	5	Ultra Librarian
TO-263 (KTT)	5	Ultra Librarian

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