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AC/DC & DC/DC controllers (external FET)

TPS64200

現行

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

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TPS62A02 現行 採用 SOT563 和 SOT23 封裝的 2.5-V 至 5.5-V 輸入、2-A、高效率降壓轉換器 High efficiency DC/DC converter with small solution size

TPS64200

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 Iq (typ) (A) 0.00002 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 Iq (typ) (A) 0.00002 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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技術文件

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類型 標題 日期
* Data sheet SOT23 Step-Down Controller. datasheet 2003年 6月 17日
Analog Design Journal 4Q 2010 Issue Analog Applications Journal 2010年 11月 15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 & DC/DC controllers (external 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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