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TPS628503

現行

採用 SOT-583 封裝的 2.7-V 至 6-V、3-A、可調整頻率降壓轉換器

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產品規格表

TPS628503

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000017 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000017 Duty cycle (max) (%) 100
SOT-5X3 (DRL) 8 3.36 mm² (2.1 mm × 1.6 mm)
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Output voltage from 0.6V to 5.5V
  • 1% feedback voltage accuracy (full temperature range)
  • TJ = –40°C to +150°C
  • Family of 1A, 2A (continuous), and 3A (peak) devices
  • Adjustable switching frequency and sync of 1.8MHz to 4MHz
  • Forced PWM or PWM and PFM operation
  • Quiescent current 17µA (typical)
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • For device options with adjustable soft start, see the TPS628511
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Output voltage from 0.6V to 5.5V
  • 1% feedback voltage accuracy (full temperature range)
  • TJ = –40°C to +150°C
  • Family of 1A, 2A (continuous), and 3A (peak) devices
  • Adjustable switching frequency and sync of 1.8MHz to 4MHz
  • Forced PWM or PWM and PFM operation
  • Quiescent current 17µA (typical)
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • For device options with adjustable soft start, see the TPS628511

The TPS62850x is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. The devices are based on a peak current mode control topology. Low resistive switches allow up to 2A continuous output current and 3A peak current. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. In PWM and PFM mode, the TPS62850x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62850x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy, fulfilling tight supply voltage requirements of digital processors and FPGA.

The TPS62850x is available in an 8-pin 1.60mm × 2.10mm SOT583 package.

The TPS62850x is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. The devices are based on a peak current mode control topology. Low resistive switches allow up to 2A continuous output current and 3A peak current. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. In PWM and PFM mode, the TPS62850x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62850x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy, fulfilling tight supply voltage requirements of digital processors and FPGA.

The TPS62850x is available in an 8-pin 1.60mm × 2.10mm SOT583 package.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS62850x 2.7V to 6V, 1A / 2A / 3A, Step-Down Converter in SOT583 Package datasheet (Rev. C) PDF | HTML 2025/6/6
應用說明 Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 2022/1/20
應用說明 How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 2022/1/20

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開發板

TPS628502EVM-092 — 採用 SOT583 封裝的 2.7-V 至 6-V、2-A 車用降壓轉換器評估模組

TPS628502EVM-092 評估模組設計用於評估 TPS6285X-Q1 裝置。TPS6285X-Q1 裝置是一款針對小型解決方案尺寸和高效率進行最佳化的高頻同步降壓轉換器。此裝置著重在廣泛輸出電流範圍下提供高效率降壓轉換。在中到高負載下，轉換器會以 PWM 模式運作，並在低負載時自動進入省電模式運作，以在整個負載電流範圍內維持高效率。內部補償電路可實現具小型外部元件的精巧解決方案。此裝置採用 2.1-mm × 1.6-mm 的 SOT583 封裝。

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