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LP4951C

ACTIVO

Regulador de voltaje ajustable de baja caída de 100 mA y 30 V con señal power good y habilitación

Detalles del producto

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2.43 Vout (max) (V) 29 Vout (min) (V) 1.24 Fixed output options (V) 29 Rating Catalog Noise (µVrms) 100 PSRR at 100 KHz (dB) 13 Iq (typ) (mA) 15 Thermal resistance θJA (°C/W) 160 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 430 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2.43 Vout (max) (V) 29 Vout (min) (V) 1.24 Fixed output options (V) 29 Rating Catalog Noise (µVrms) 100 PSRR at 100 KHz (dB) 13 Iq (typ) (mA) 15 Thermal resistance θJA (°C/W) 160 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 430 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6
  • High Accuracy 5V Specified 100mA Output
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Only 1μF for Stability
  • Current and Thermal Limiting

LP4951C Versions Only

  • Error Flag Warns of Output Dropout
  • Logic-controlled Electronic Shutdown
  • Output Pogrammable From 1.24 to 29V

All trademarks are the property of their respective owners.

  • High Accuracy 5V Specified 100mA Output
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Only 1μF for Stability
  • Current and Thermal Limiting

LP4951C Versions Only

  • Error Flag Warns of Output Dropout
  • Logic-controlled Electronic Shutdown
  • Output Pogrammable From 1.24 to 29V

All trademarks are the property of their respective owners.

The LP4950C and LP4951C are micropower voltage regulators with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP4950C/LP4951C increases only slightly in dropout, prolonging battery life.

The LP4950C in the popular 3-pin TO-92 package is pin compatible with older 5V regulators. The 8-lead LP4951C is available in a plastic surface mount package and offers additional system functions.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5V output or programmed from 1.24V to 29V with an external pair of resistors.

Careful design of the LP4950C/LP4951C has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

The LP4950C and LP4951C are micropower voltage regulators with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP4950C/LP4951C increases only slightly in dropout, prolonging battery life.

The LP4950C in the popular 3-pin TO-92 package is pin compatible with older 5V regulators. The 8-lead LP4951C is available in a plastic surface mount package and offers additional system functions.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5V output or programmed from 1.24V to 29V with an external pair of resistors.

Careful design of the LP4950C/LP4951C has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

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Documentación técnica

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* Data sheet LP4950C-5V and LP4951C Adjustable Micropower Voltage Regulators datasheet (Rev. C) 02 abr 2013

Diseño y desarrollo

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Pedidos y calidad

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  • 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

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