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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS54262-EP

現行

具備低 IQ、電壓監控及重設功能，並採用強化型塑膠封裝的 2A、60V 降壓式 DC/DC 轉換器

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產品規格表

TPS54262-EP

現行
產品規格表 立即訂購

產品詳細資料

Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.6 Vin (max) (V) 60 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 18 Iq (typ) (µA) 50 Duty cycle (max) (%) 90
Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.6 Vin (max) (V) 60 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 18 Iq (typ) (µA) 50 Duty cycle (max) (%) 90
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Asynchronous Switch Mode Regulator
  • Qualified for Automotive Applications
  • 3.6-V to 48-V Operating Range, Withstands Transients up to 60 V
  • 2-A Maximum Load Current
  • 50-µA Typical Quiescent Current
  • 200-kHz to 2.2-MHz Switching Frequency
  • 0.8 V ± 1.5% Voltage Reference
  • High-Voltage Tolerant Enable Input
  • Soft Start on Enable Cycle
  • Slew Rate Control on Internal Power Switch
  • Low-Power Mode for Light-Load Conditions
  • Programmable Delay for Power-On Reset
  • External Compensation for Error Amplifier
  • Reset Function Filter Time for Fast Negative Transients
  • Programmable Overvoltage, Undervoltage Output Monitor
  • Thermal Sensing and Shutdown
  • Switch Current Limit Protection
  • Short Circuit and Overcurrent Protection of FET
  • Junction Temperature Range: –55°C to 150°C
  • 20-Pin HTSSOP PowerPAD™ Package
  • Supports Defense, Aerospace, and Medical Applications:
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extended (–55°C to 125°C) Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
  • Asynchronous Switch Mode Regulator
  • Qualified for Automotive Applications
  • 3.6-V to 48-V Operating Range, Withstands Transients up to 60 V
  • 2-A Maximum Load Current
  • 50-µA Typical Quiescent Current
  • 200-kHz to 2.2-MHz Switching Frequency
  • 0.8 V ± 1.5% Voltage Reference
  • High-Voltage Tolerant Enable Input
  • Soft Start on Enable Cycle
  • Slew Rate Control on Internal Power Switch
  • Low-Power Mode for Light-Load Conditions
  • Programmable Delay for Power-On Reset
  • External Compensation for Error Amplifier
  • Reset Function Filter Time for Fast Negative Transients
  • Programmable Overvoltage, Undervoltage Output Monitor
  • Thermal Sensing and Shutdown
  • Switch Current Limit Protection
  • Short Circuit and Overcurrent Protection of FET
  • Junction Temperature Range: –55°C to 150°C
  • 20-Pin HTSSOP PowerPAD™ Package
  • Supports Defense, Aerospace, and Medical Applications:
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extended (–55°C to 125°C) Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

The TPS54262-EP device is a 60-V, 2-A step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor with an integrated NMOS switching FET. 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. The device also features low-power mode operation under light-load conditions which reduces the supply current to 50 µA (typical). By pulling the EN pin low, the supply shutdown current is reduced to 1 µA (typical).

An open-drain reset signal indicates when the nominal output drops below the reset threshold set by an external resistor divider network. The output voltage start-up ramp is controlled by a soft-start capacitor. There is an internal undervoltage shutown which is activated when the input supply ramps down to 2.6 V. The device features a short circuit protection circuit, which protects the device during overload condition and also has a thermal shutdown protection.

The TPS54262-EP device is a 60-V, 2-A step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor with an integrated NMOS switching FET. 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. The device also features low-power mode operation under light-load conditions which reduces the supply current to 50 µA (typical). By pulling the EN pin low, the supply shutdown current is reduced to 1 µA (typical).

An open-drain reset signal indicates when the nominal output drops below the reset threshold set by an external resistor divider network. The output voltage start-up ramp is controlled by a soft-start capacitor. There is an internal undervoltage shutown which is activated when the input supply ramps down to 2.6 V. The device features a short circuit protection circuit, which protects the device during overload condition and also has a thermal shutdown protection.
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* Data sheet TPS54262-EP 2-A 60-V Step-Down DC-DC Converter With Low I(q) and Voltage Supervisor datasheet PDF | HTML 2016年 12月 13日

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開發板

TPS54262EVM — TPS54262EVM 評估模組

The Texas Instruments TPS54262EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS54262 Switch Mode Power Supply - Buck Regulator. The device offers configurability and can be setup to switch from 200KHz up to 2.2MHz.

使用指南: PDF
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