主頁(yè) 電源管理 AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）

TPS62304

正在供貨

采用 QFN 或芯片級(jí)封裝的 1.2V 500mA 輸出的 3MHz 降壓轉(zhuǎn)換器

可提供此產(chǎn)品的更新版本

功能與比較器件相同，但引腳排列有所不同
TPS62807 正在供貨 采用 0.7mm x 1.05mm WCSP 封裝的 1.75V 至 5.5V 輸入、600mA 超低 IQ 降壓轉(zhuǎn)換器 Smaller solution size and lower quiescent current

產(chǎn)品詳情

Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 2650 Switching frequency (max) (kHz) 3350 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 86 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 2650 Switching frequency (max) (kHz) 3350 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 86 Duty cycle (max) (%) 100 Type Converter
VSON (DRC) 10 9 mm2 3 x 3
  • Up to 93% Efficiency at 3-MHz Operation
  • Up to 500-mA Output Current at VI = 2.7 V
  • 3-MHz Fixed Frequency Operation
  • Best in Class Load and Line Transient
  • Complete 1-mm Component Profile Solution
  • –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
  • 35-ns Minimum On-Time
  • Power-Save Mode Operation at Light Load Currents
  • Fixed and Adjustable Output Voltage
  • Only 86-μA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Synchronizable On the Fly to External
    Clock Signal
  • Integrated Active Power-Down Sequencing (TPS6232x only)
  • Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree?, and NanoStar? (CSP) Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN and Bluetooth? Applications
    • Micro DC-DC Converter Modules
    • PDAs, Pocket PCs
    • USB-Based DSL Modems
    • Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instruments.
  • Up to 93% Efficiency at 3-MHz Operation
  • Up to 500-mA Output Current at VI = 2.7 V
  • 3-MHz Fixed Frequency Operation
  • Best in Class Load and Line Transient
  • Complete 1-mm Component Profile Solution
  • –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
  • 35-ns Minimum On-Time
  • Power-Save Mode Operation at Light Load Currents
  • Fixed and Adjustable Output Voltage
  • Only 86-μA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Synchronizable On the Fly to External
    Clock Signal
  • Integrated Active Power-Down Sequencing (TPS6232x only)
  • Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree?, and NanoStar? (CSP) Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN and Bluetooth? Applications
    • Micro DC-DC Converter Modules
    • PDAs, Pocket PCs
    • USB-Based DSL Modems
    • Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instruments.

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.

The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.

The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).
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類型 標(biāo)題 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 500mA, 3MHz Synchronous Step-Down Converter in Chip Scale Packaging 數(shù)據(jù)表 (Rev. E) 2007年 11月 12日
應(yīng)用手冊(cè) QFN 和 SON PCB 連接 (Rev. C) PDF | HTML 英語(yǔ)版 (Rev.C) PDF | HTML 2024年 1月 5日
模擬設(shè)計(jì)期刊 Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
應(yīng)用手冊(cè) Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
模擬設(shè)計(jì)期刊 Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
應(yīng)用手冊(cè) Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
模擬設(shè)計(jì)期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
應(yīng)用手冊(cè) Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
模擬設(shè)計(jì)期刊 Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
應(yīng)用手冊(cè) Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
模擬設(shè)計(jì)期刊 實(shí)現(xiàn)降壓型轉(zhuǎn)換器出色 PCB 布局的五個(gè)步驟 英語(yǔ)版 2015年 5月 1日
應(yīng)用手冊(cè) Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
模擬設(shè)計(jì)期刊 IQ：它是什么、不是什么以及如何使用 英語(yǔ)版 2011年 8月 17日
應(yīng)用手冊(cè) 優(yōu)化具有內(nèi)部補(bǔ)償功能的 DC-DC 轉(zhuǎn)換器的瞬態(tài)響應(yīng) 最新英語(yǔ)版本 (Rev.B) 2008年 7月 15日

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