LP3856

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Regulador de voltaje de 3 A, 7 V, de caída ultrabaja con habilitación

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

LP3856

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)

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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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LP3853/LP3856 3A Fast Response Ultra Low Dropout Linear Regulators datasheet (Rev. G)		01 abr 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
TO-220 (NDH)	5	Ultra Librarian
TO-263 (KTT)	5	Ultra Librarian

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LP3856

Regulador de voltaje de 3 A, 7 V, de caída ultrabaja con habilitación

LP3856

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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