LP38869

ACTIVO

Regulador de voltaje de 1 A, de alta PSRR, de caída ultrabaja, con habilitación

Haga su pedido ahora

Hoja de datos

document-pdfAcrobat LP38869 1A FlexCap, Low-Dropout Linear Reg w/ 0.75% Accuracy datasheet (Rev. B) (Inglés)

LP38869

ACTIVO

Hoja de datos

Haga su pedido ahora

Detalles del producto

Output options

Fixed Output

Iout (max) (A)

1

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Vout (max) (V)

2.5

Vout (min) (V)

2.5

Fixed output options (V)

2.5

Rating

Catalog

Noise (µVrms)

50

PSRR at 100 KHz (dB)

50

Iq (typ) (mA)

0.6

Thermal resistance θJA (°C/W)

141

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Soft start

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

200

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

1

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Vout (max) (V)

2.5

Vout (min) (V)

2.5

Fixed output options (V)

2.5

Rating

Catalog

Noise (µVrms)

50

PSRR at 100 KHz (dB)

50

Iq (typ) (mA)

0.6

Thermal resistance θJA (°C/W)

141

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Soft start

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

200

Operating temperature range (°C)

-40 to 125

HTSSOP (PWP)

16

32 mm² 5 x 6.4

Operating Input Supply Range: +2.7V to + 5.5V
Maximum Continuous Output Current: 1A
Preset Output Voltage of 2.5V, or Adjustable Output Voltage From 0.8V to 5.0V
Pre-Set Output Initial V_OUT Tolerance ±0.5%
Adjustable V_REF Tolerance of ±0.75%
PSRR of 50dB at 100kHz
Low 200 mV Dropout at 1A
Typical 2 µA Supply Current in Shutdown Mode
Adjustable Soft-Start for Output Current
Fold-Back Output Current Limit
Stable With Ceramic, Tantalum, or Aluminum Capacitors
Stable With 1uF Input/Output Capacitors
Thermal Shutdown
16-pin HTSSOP Package

All trademarks are the property of their respective owners.

Operating Input Supply Range: +2.7V to + 5.5V
Maximum Continuous Output Current: 1A
Preset Output Voltage of 2.5V, or Adjustable Output Voltage From 0.8V to 5.0V
Pre-Set Output Initial V_OUT Tolerance ±0.5%
Adjustable V_REF Tolerance of ±0.75%
PSRR of 50dB at 100kHz
Low 200 mV Dropout at 1A
Typical 2 µA Supply Current in Shutdown Mode
Adjustable Soft-Start for Output Current
Fold-Back Output Current Limit
Stable With Ceramic, Tantalum, or Aluminum Capacitors
Stable With 1uF Input/Output Capacitors
Thermal Shutdown
16-pin HTSSOP Package

All trademarks are the property of their respective owners.

The LP38869 low-dropout linear regulator operates with an input voltage supply from +2.7V to +5.5V input, and delivers a specified 1A load current with a low 200 mV dropout. The high 50 dB PSRR at 100 kHz results from a high gain control loop that also yields excellent transient response. Coupled with a high accuracy output voltage, ±0.75 % over temperature, the LP38869 is an ideal power supply for FPGAs, DSPs or MCUs. Output voltage is preset at +2.5V, or may be adjustable between +0.8V to +5V with an external resistor divider.

The LP38869 only needs 1 μF output capacitance for stability. The FlexCap compensation allows the use of any type of output capacitor, regardless of ESR. Other features include: Soft-Start; delayed reset output; low-power shutdown; short-circuit protection; and thermal shutdown protection

Ground Pin Current: Typically less than 1 mA at 1A load

Shutdown Mode: Typically 2 µA quiescent current when the SHDN pin is pulled low.

Simplified Compensation: Stable with any type of output capacitor.

The LP38869 low-dropout linear regulator operates with an input voltage supply from +2.7V to +5.5V input, and delivers a specified 1A load current with a low 200 mV dropout. The high 50 dB PSRR at 100 kHz results from a high gain control loop that also yields excellent transient response. Coupled with a high accuracy output voltage, ±0.75 % over temperature, the LP38869 is an ideal power supply for FPGAs, DSPs or MCUs. Output voltage is preset at +2.5V, or may be adjustable between +0.8V to +5V with an external resistor divider.

The LP38869 only needs 1 μF output capacitance for stability. The FlexCap compensation allows the use of any type of output capacitor, regardless of ESR. Other features include: Soft-Start; delayed reset output; low-power shutdown; short-circuit protection; and thermal shutdown protection

Ground Pin Current: Typically less than 1 mA at 1A load

Shutdown Mode: Typically 2 µA quiescent current when the SHDN pin is pulled low.

Simplified Compensation: Stable with any type of output capacitor.

filter

Buscar otro/a Reguladores lineales y de baja salida (LDO)

Descargar Ver vídeo con transcripción Video

Documentación técnica

star

=Principal documentación para este producto seleccionada por TI

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.

Ver todo 2

	Tipo	Título		Fecha
*	Data sheet	LP38869 1A FlexCap, Low-Dropout Linear Reg w/ 0.75% Accuracy datasheet (Rev. B)		08 abr 2013
	Application note	AN-2261 LP38869EVAL - 800mA LDO with High PSRR and Low Noise (Rev. A)		24 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
HTSSOP (PWP)	16	Ultra Librarian

Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

LP38869

Regulador de voltaje de 1 A, de alta PSRR, de caída ultrabaja, con habilitación

LP38869

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

Serie de videos

Videos