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LP5952

ACTIVO

Regulador de voltaje lineal de 350 mA, de bajo VIN (0,9 V), con habilitación

Detalles del producto

Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Rating Catalog Noise (µVrms) 100 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Rating Catalog Noise (µVrms) 100 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 5 2.02 mm² 1.616 x 1.25 USON (NKH) 6 4 mm² 2 x 2
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LP5952 350-mA Dual-Rail Linear Regulator datasheet (Rev. F) PDF | HTML 17 dic 2015
EVM User's guide AN-1531 LP5952 Evaluation Board (Rev. B) 30 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
DSBGA (YZR) 5 Ultra Librarian
USON (NKH) 6 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

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