Inicio Gestión de la energía Reguladores lineales y de baja salida (LDO)
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Gestión de la energía
Reguladores lineales y de baja salida (LDO)

LM340-MIL

ACTIVO

Regulador lineal de salida fija de 1.5 A

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LM340-MIL

ACTIVO
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Detalles del producto

Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 35 Vin (min) (V) 7.5 Vout (max) (V) 15 Vout (min) (V) 5 Fixed output options (V) 5 Noise (µVrms) 40 Iq (typ) (mA) 8 Thermal resistance θJA (°C/W) 24 Rating Military Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 3.5 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 35 Vin (min) (V) 7.5 Vout (max) (V) 15 Vout (min) (V) 5 Fixed output options (V) 5 Noise (µVrms) 40 Iq (typ) (mA) 8 Thermal resistance θJA (°C/W) 24 Rating Military Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 3.5 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
TO-CAN (NDS) 2 969.2166 mm² 38.94 x 24.89
  • Output Current up to 1.5 A
  • Available in Fixed 5-V, 12-V, and 15-V Options
  • Internal Thermal Overload, Short-Circuit and SOA Protection
  • Available in Space-Saving SOT-223 Package
  • Output Capacitance Not Required for Stability
  • Output Current up to 1.5 A
  • Available in Fixed 5-V, 12-V, and 15-V Options
  • Internal Thermal Overload, Short-Circuit and SOA Protection
  • Available in Space-Saving SOT-223 Package
  • Output Capacitance Not Required for Stability

The LM340-MIL monolithic 3-pin positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.5-A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Considerable effort was expended to make the regulator easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.

The LM340-MIL monolithic 3-pin positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.5-A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Considerable effort was expended to make the regulator easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.
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Documentación técnica

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Tipo Título Fecha
* Data sheet LM340-MIL Wide VIN 1.5-A Fixed Voltage Regulator datasheet PDF | HTML 16 jun 2017
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 jun 2019
Analog Design Journal Industrial-strength design considerations to prevent thermal and EMI damage 11 abr 2014
Application note AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) 06 may 2013
Application note AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) 06 may 2013
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 06 may 2013
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 may 2013
Application note AN-256 Circuitry for Inexpensive Relative Humidity Measurement (Rev. B) 06 may 2013
Application note AN-298 Isolation Techniques for Signal Conditioning (Rev. B) 06 may 2013
Application note AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) 05 may 2013
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 05 may 2013
Application note Super Matched Bipolar Transistor Pair Sets New Standards for Drift and Noise (Rev. B) 05 may 2013
More literature Die D/S LM7808C MDC Series 3-Terminal Positive Regulators 28 sep 2012
More literature Die D/S LM6172 MDC Dual Hi Spd, Low Pwr, Low Distortion Voltage Feedback Amp 27 sep 2012
Application note Packaging Limits Range of Linear Regulators 08 may 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 04 jun 2008
User guide A User's Guide to Compensating Low-Dropout Regulators 21 mar 2007
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 21 oct 1999

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
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