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LP2957A

ACTIVO

Regulador de voltaje de baja caída de 250 mA, 30 V, con alta precisión y señal power good

Detalles del producto

Output options Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 30 Vin (min) (V) -20 Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 Noise (µVrms) 320 Iq (typ) (mA) 0.15 Thermal resistance θJA (°C/W) 60 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 14 Dropout voltage (Vdo) (typ) (mV) 470 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 30 Vin (min) (V) -20 Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 Noise (µVrms) 320 Iq (typ) (mA) 0.15 Thermal resistance θJA (°C/W) 60 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 14 Dropout voltage (Vdo) (typ) (mV) 470 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
  • 5V Output within 1.4% Over Temperature (A Grade)
  • Easily Programmed for Snap-On/Snap-Off Output
  • Ensured 250 mA Output Current
  • Extremely Low Quiescent Current
  • Low Input-Output Voltage Required for Regulation
  • Reverse Battery Protection
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Error Flag Signals when Output is out of Regulation

All trademarks are the property of their respective owners.

  • 5V Output within 1.4% Over Temperature (A Grade)
  • Easily Programmed for Snap-On/Snap-Off Output
  • Ensured 250 mA Output Current
  • Extremely Low Quiescent Current
  • Low Input-Output Voltage Required for Regulation
  • Reverse Battery Protection
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Error Flag Signals when Output is out of Regulation

All trademarks are the property of their respective owners.

The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).

Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.

Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.

The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).

The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.

The LP2957 is available in the five-lead TO-220 and DDPAK/TO-263 packages.

The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).

Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.

Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.

The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).

The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.

The LP2957 is available in the five-lead TO-220 and DDPAK/TO-263 packages.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LP2957/LP2957A 5V Low-Dropout Regulator for µP Applications datasheet (Rev. C) 04 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

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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