LP3873

ACTIVO

Regulador de voltaje de baja caída de 3 A con señal power good y habilitación para 2,5 V y 3,3 V

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document-pdfAcrobat LP3873/LP3876 3A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. E) (Inglés)

LP3873

ACTIVO

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Detalles del producto

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)

6

Thermal resistance θJA (°C/W)

60

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

800

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)

6

Thermal resistance θJA (°C/W)

60

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

800

Operating temperature range (°C)

-40 to 125

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.08%
1µA Quiescent Current in Shutdown Mode
Ensured Output Current of 3A DC
Available in DDPAK/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status
Sense Option Improves Load Regulation
Minimum Output Capacitor Requirements
Overtemperature/overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.08%
1µA Quiescent Current in Shutdown Mode
Ensured Output Current of 3A DC
Available in DDPAK/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status
Sense Option Improves Load Regulation
Minimum Output Capacitor Requirements
Overtemperature/overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

The LP3873/LP3876 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 LP3873/LP3876 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3873/LP3876 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current: Typically 6mA at 3A load current.

Shutdown Mode: Typically 1µA 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 an ensured accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

The LP3873/LP3876 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 LP3873/LP3876 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3873/LP3876 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current: Typically 6mA at 3A load current.

Shutdown Mode: Typically 1µA 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 an ensured accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LP3873/LP3876 3A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. E)		06 abr 2013

Diseño y desarrollo

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Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
TO-263 (KTT)	5	Ultra Librarian

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LP3873

Regulador de voltaje de baja caída de 3 A con señal power good y habilitación para 2,5 V y 3,3 V

LP3873

Detalles del producto

Documentación técnica

Diseño y desarrollo

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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