Product details

Vin (Min) (V) 3.6 Vin (Max) (V) 60 Vout (Min) (V) 0.9 Vout (Max) (V) 18 Iout (Max) (A) 3 Iq (Typ) (uA) 65 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2200 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good, Soft Start Adjustable, Tracking Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1
Vin (Min) (V) 3.6 Vin (Max) (V) 60 Vout (Min) (V) 0.9 Vout (Max) (V) 18 Iout (Max) (A) 3 Iq (Typ) (uA) 65 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2200 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good, Soft Start Adjustable, Tracking Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1
HTSSOP (PWP) 20 42 mm² 6.5 x 6.4
  • 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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Technical documentation

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Type Title Date
* Data sheet TPS54362-Q1 3-A, 60-V Step-Down DC-DC Converter With Low I(q) datasheet (Rev. G) 27 Aug 2014
* Errata TPS54362QPWPRQ1 Errata 03 Dec 2010
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
User guide TPS54362B EVM User’s Guide 20 May 2014

Design & development

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