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AC/DC 和 DC/DC 控制器 (外部 FET)

TPS64201

現行

採用 SOT-23、靜態電流為 20 uA 的 1.8 至 6.5 V 輸入、450 kHz、95% 效率降壓控制器

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產品規格表

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功能與所比較的裝置相似
TPS62A02 現行 採用 SOT563 和 SOT23 封裝的 2.5V 至 5.5V 輸入，2A 高效率降壓轉換器 High efficiency DC/DC converter with small solution size

TPS64201

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 1.8 Vin (max) (V) 6.5 Iout (max) (A) 3 Operating temperature range (°C) -40 to 85 Control mode Hysteretic Rating Catalog Vout (min) (V) 1.2 Vout (max) (V) 6.5 Features Enable Iq (typ) (µA) 20 Duty cycle (max) (%) 100 Number of phases 1
Vin (min) (V) 1.8 Vin (max) (V) 6.5 Iout (max) (A) 3 Operating temperature range (°C) -40 to 85 Control mode Hysteretic Rating Catalog Vout (min) (V) 1.2 Vout (max) (V) 6.5 Features Enable Iq (typ) (µA) 20 Duty cycle (max) (%) 100 Number of phases 1
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Step-Down Controller for Applications With up to 95% Efficiency
  • 1.8-V to 6.5-V Operating Input Voltage Range
  • Adjustable Output Voltage Range From 1.2 V to VI
  • High Efficiency Over a Wide Load Current Range
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Internal Softstart
  • 20-µA Quiescent Current (Typical)
  • Overcurrent Protected
  • Available in a SOT23 Package
  • APPLICATIONS
    • USB Powered Peripherals
    • Organizers, PDAs, and Handheld PCs
    • Low Power DSP Supply
    • Digital Cameras
    • Hard Disk Drives
    • Portable Audio Players
  • Step-Down Controller for Applications With up to 95% Efficiency
  • 1.8-V to 6.5-V Operating Input Voltage Range
  • Adjustable Output Voltage Range From 1.2 V to VI
  • High Efficiency Over a Wide Load Current Range
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Internal Softstart
  • 20-µA Quiescent Current (Typical)
  • Overcurrent Protected
  • Available in a SOT23 Package
  • APPLICATIONS
    • USB Powered Peripherals
    • Organizers, PDAs, and Handheld PCs
    • Low Power DSP Supply
    • Digital Cameras
    • Hard Disk Drives
    • Portable Audio Players

The TPS6420x are nonsynchronous step-down controllers that are ideally suited for systems powered from a 5-V or 3.3-V bus or for applications powered from a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or alkaline battery. These step-down controllers drive an external P-channel MOSFET allowing design flexibility. To achieve highest efficiency over a wide load current range, this controller uses a minimum on time, minimum off time control scheme and consumes only 20-µA quiescent current. The minimum on time of typically 600 ns (TPS64203) allows the use of small inductors and capacitors. When disabled, the current consumption is reduced to less than 1 µA. The TPS6420x is available in the 6-pin SOT23 (DBV) package and operates over a free air temperature range of –40°C to 85°C.

The TPS6420x are nonsynchronous step-down controllers that are ideally suited for systems powered from a 5-V or 3.3-V bus or for applications powered from a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or alkaline battery. These step-down controllers drive an external P-channel MOSFET allowing design flexibility. To achieve highest efficiency over a wide load current range, this controller uses a minimum on time, minimum off time control scheme and consumes only 20-µA quiescent current. The minimum on time of typically 600 ns (TPS64203) allows the use of small inductors and capacitors. When disabled, the current consumption is reduced to less than 1 µA. The TPS6420x is available in the 6-pin SOT23 (DBV) package and operates over a free air temperature range of –40°C to 85°C.
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類型 標題 日期
* Data sheet SOT23 Step-Down Controller. datasheet 2003年 6月 17日
Application note Using Ceramic Output Capacitors With The TPS6420x Buck Controllers (Rev. B) 2010年 3月 11日
Application note 5 A Buck Converter Using the TPS6420x Family of Step Down Controllers 2004年 6月 17日

設計與開發

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開發板

TPS64202EVM-023 — TPS64202 評估模組 (3.3V @ 2A)

The TPS64202EVM-023 is an evaluation tool for the TPS64202 inductive step-down controller in SOT-23 package which can supply voltages down to 1.2V from a 1.8-V to 6.5-V input. The TPS64202EVM-023 uses a TPS64202 adjustable output step-down controller and the appropriate external components to (...)

使用指南: PDF
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計算工具

SLVC038 — Design Spreadsheet for the TPS6420x

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產品
AC/DC 和 DC/DC 控制器 (外部 FET)
TPS64200 — 採用 SOT-23、靜態電流為 20 uA 的 1.8 至 6.5 V 輸入、350 kHz、95% 效率降壓控制器 TPS64201 — 採用 SOT-23、靜態電流為 20 uA 的 1.8 至 6.5 V 輸入、450 kHz、95% 效率降壓控制器 TPS64202 — 採用 SOT-23、靜態電流為 20 uA 的 1.8 至 6.5 V 輸入、550 kHz、95% 效率降壓控制器 TPS64203 — 採用 SOT-23、靜態電流為 20 uA 的 1.8 至 6.5 V 輸入、800 kHz、95% 效率降壓控制器
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
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