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TPS54362-Q1

ACTIVO

Convertidor automotriz reductor de 3.6 V a 48 V y 3 A con IQ baja y supervisión de tensión

Se encuentra disponible una versión más nueva de este producto

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
LM65635-Q1 ACTIVO Convertidor buck automotriz de 3 V a 65 V y 3.5 A optimizado para densidad de potencia y baja EMI Better efficiency and smaller solution size

Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 60 Vin (min) (V) 3.6 Vout (max) (V) 18 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000065 Duty cycle (max) (%) 95
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 60 Vin (min) (V) 3.6 Vout (max) (V) 18 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000065 Duty cycle (max) (%) 95
HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Withstands Transients up to 60 V With an Operating
    Range of 3.6 V to 48 V
  • Asynchronous Switch-Mode Regulator With External
    Components (L and C), Load Current up to 3 A (max.)
  • 0.8 V ± 1.5% Voltage Reference
  • 200-kHz to 2.2-MHz Switching Frequency
  • High-Voltage-Tolerant Enable Input for ON/OFF State
  • Soft Start on Enable Cycle
  • Slew-Rate Control on Internal Power Switch
  • External Clock Input for Synchronization
  • Pulse-Skip Mode (PFM) During Light Output Loads
    With Quiescent Current = 65 µA Typical
    (LPM Operation)
  • External Compensation for Wide-Bandwidth Error
    Amplifier
  • Internal Undervoltage Lockout, UVLO
  • Programmable Reset Power-On Delay
  • Reset-Function Filter Time for Fast Negative
    Transients
  • Programmable Overvoltage Output Monitoring
  • Programmable Undervoltage Output Monitoring,
    Issuance of Reset if Output Falls Below Threshold
  • Thermal Shutdown During Excessive Power Dissipation
  • Switch Current-Limit Protection
  • Short-Circuit and Overcurrent Protection of FET
  • Junction Temperature Range: –40°C to 150°C
  • 20-Pin HTSSOP PowerPAD Package
  • Qualified for Automotive Applications
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Withstands Transients up to 60 V With an Operating
    Range of 3.6 V to 48 V
  • Asynchronous Switch-Mode Regulator With External
    Components (L and C), Load Current up to 3 A (max.)
  • 0.8 V ± 1.5% Voltage Reference
  • 200-kHz to 2.2-MHz Switching Frequency
  • High-Voltage-Tolerant Enable Input for ON/OFF State
  • Soft Start on Enable Cycle
  • Slew-Rate Control on Internal Power Switch
  • External Clock Input for Synchronization
  • Pulse-Skip Mode (PFM) During Light Output Loads
    With Quiescent Current = 65 µA Typical
    (LPM Operation)
  • External Compensation for Wide-Bandwidth Error
    Amplifier
  • Internal Undervoltage Lockout, UVLO
  • Programmable Reset Power-On Delay
  • Reset-Function Filter Time for Fast Negative
    Transients
  • Programmable Overvoltage Output Monitoring
  • Programmable Undervoltage Output Monitoring,
    Issuance of Reset if Output Falls Below Threshold
  • Thermal Shutdown During Excessive Power Dissipation
  • Switch Current-Limit Protection
  • Short-Circuit and Overcurrent Protection of FET
  • Junction Temperature Range: –40°C to 150°C
  • 20-Pin HTSSOP PowerPAD Package
  • Qualified for Automotive Applications

The TPS54362-Q1 device is a step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor. Integrated input voltage-line feed-forward topology improves line transient regulation of the voltage-mode buck regulator. The regulator has a cycle-by-cycle current limit. Pulse-skip mode operation under no load reduces the supply current to 65 µA. Using the enable pin reduces the supply shutdown current to 1 µA.

An open-drain reset signal indicates when the nominal output drops below the threshold set by an external resistor-divider network. A soft-start capacitor controls the output voltage start-up ramp. The device activates an internal undervoltage shutdown when the input supply ramps down to 2.6 V.

Frequency foldback operation protects the device during an overload conditions on the output. The device also has thermal shutdown protection due to excessive power dissipation.

The B-revision has an improved leakage current parameter, and improved discharged function while in disable mode.

The TPS54362-Q1 device is a step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor. Integrated input voltage-line feed-forward topology improves line transient regulation of the voltage-mode buck regulator. The regulator has a cycle-by-cycle current limit. Pulse-skip mode operation under no load reduces the supply current to 65 µA. Using the enable pin reduces the supply shutdown current to 1 µA.

An open-drain reset signal indicates when the nominal output drops below the threshold set by an external resistor-divider network. A soft-start capacitor controls the output voltage start-up ramp. The device activates an internal undervoltage shutdown when the input supply ramps down to 2.6 V.

Frequency foldback operation protects the device during an overload conditions on the output. The device also has thermal shutdown protection due to excessive power dissipation.

The B-revision has an improved leakage current parameter, and improved discharged function while in disable mode.

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS54362-Q1 3-A, 60-V Step-Down DC-DC Converter With Low I(q) datasheet (Rev. G) PDF | HTML 27/08/2014
* Errata TPS54362QPWPRQ1 Errata 3/12/2010

Diseño y desarrollo

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Placa de evaluación

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Guía del usuario: PDF
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Diseño de referencia

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