TPS54262-Q1

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具有低 Iq 和電壓監控功能的汽車類 3.6V 至 60V、2A 降壓轉換器

產品詳情

Rating Automotive Topology Buck Iout (max) (A) 2 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, Tracking, UVLO adjustable Control mode Voltage mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 50 Duty cycle (max) (%) 90 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 2 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, Tracking, UVLO adjustable Control mode Voltage mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 50 Duty cycle (max) (%) 90 Type Converter
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: –40°C to 150°C
  • 20-Pin HTSSOP PowerPAD? Package
  • 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: –40°C to 150°C
  • 20-Pin HTSSOP PowerPAD? Package

The TPS54262-Q1 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 shut down 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-Q1 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 shut down 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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類型 標題 下載最新的英語版本 日期
* 數據表 TPS54262-Q1 Automotive 2-A 60-V Step-Down DC-DC Converter With Low I(q) and Voltage Supervisor 數據表 (Rev. D) PDF | HTML 2015年 9月 30日

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評估板

TPS54262EVM — TPS54262EVM 評估模塊

德州儀器 (TI) TPS54262EVM 評估模塊 (EVM) 能幫助設計者評估 TPS54262 開關模式電源 – 降壓穩壓器的操作和性能。該器件具有可配置性并且可設置為從 200KHz 切換至高達 2.2MHz。

用戶指南: PDF
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仿真模型

TPS54262-Q1 PSpice Transient Model

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HTSSOP (PWP) 20 Ultra Librarian

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  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
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