LP3856

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Spannungsregler mit extrem niedriger Dropout-Spannung, 3 A, 7 V mit Aktivierung

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Datenblatt

document-pdfAcrobat LP3853/LP3856 3A Fast Response Ultra Low Dropout Linear Regulators datasheet (Rev. G) (Englisch)

LP3856

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Output options

Fixed Output

Iout (max) (A)

3

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)

4

Thermal resistance θJA (°C/W)

50

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

1.5

Dropout voltage (Vdo) (typ) (mV)

390

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

3

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)

4

Thermal resistance θJA (°C/W)

50

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

1.5

Dropout voltage (Vdo) (typ) (mV)

390

Operating temperature range (°C)

-40 to 125

TO-220 (NDH)

5

86.0552 mm² 10.16 x 8.47

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

Ultra Low Dropout Voltage
Stable with Selected Ceramic Capacitors
Low Ground Pin Current
Load Regulation of 0.08%
10nA Quiescent Current in Shutdown Mode
Ensured Output Current of 3A DC
Available in TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status
Sense Option Improves Load Regulation
Overtemperature/overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

Ultra Low Dropout Voltage
Stable with Selected Ceramic Capacitors
Low Ground Pin Current
Load Regulation of 0.08%
10nA Quiescent Current in Shutdown Mode
Ensured Output Current of 3A DC
Available in TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status
Sense Option Improves Load Regulation
Overtemperature/overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

The LP3853/LP3856 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3853/LP3856 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3853/LP3856 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 39mV at 300mA load current and 390mV at 3A load current.

Ground Pin Current: Typically 4mA at 3A load current.

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

Error Flag:Error flag goes low when the output voltage drops 10% below nominal value.

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with a ensured accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

The LP3853/LP3856 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V 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 LP3853/LP3856 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3853/LP3856 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 39mV at 300mA load current and 390mV at 3A load current.

Ground Pin Current: Typically 4mA at 3A load current.

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

Error Flag:Error flag goes low when the output voltage drops 10% below nominal value.

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with a ensured 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	LP3853/LP3856 3A Fast Response Ultra Low Dropout Linear Regulators datasheet (Rev. G)		01 Apr 2013

Design und Entwicklung

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
TO-220 (NDH)	5	Ultra Librarian
TO-263 (KTT)	5	Ultra Librarian

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LP3856

Spannungsregler mit extrem niedriger Dropout-Spannung, 3 A, 7 V mit Aktivierung

LP3856

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