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.

• 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

• 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
• Rating
• Automotive
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 95

TPS54362-Q1的完整型号有：TPS54362BQPWPRQ1、TPS54362AQPWPRQ1，以下是这些产品的关键参数及官网采购报价：

TPS54362BQPWPRQ1，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS54362BQPWPRQ1的批量USD价格：1.918（1000+）

TPS54362AQPWPRQ1，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS54362AQPWPRQ1的批量USD价格：3.185（1000+）

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