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

TPS62421

正在供貨

采用 3x3mm QFN 小型封裝的 2.25MHz 600mA/1000mA 雙通道降壓轉(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
TPS62442 正在供貨 采用 QFN 封裝的 2.75V 至 6V 雙路 2A 或 3A/1A 降壓轉(zhuǎn)換器 Smaller solution size with higher output voltage range 0.6 V to 5.5 V

產(chǎn)品詳情

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 1.8 Vout (min) (V) 1.2 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 32 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 1.8 Vout (min) (V) 1.2 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 32 Duty cycle (max) (%) 100 Type Converter
VSON (DRC) 10 9 mm2 3 x 3
  • High Efficiency up to 95%
  • VIN Range from 2.5 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Output Current 600 mA and 1000 mA
  • Adjustable Output Voltage from 0.6 V to VIN
  • Pin Selectable Output Voltage Supports Simple
    Dynamic VoltageScaling
  • Optional EasyScale One-Pin Serial Interface for
    Dynamic Output Voltage Adjustment
  • Power-Save Mode at Light Load Currents
  • 180° Out of Phase Operation
  • Output Voltage Accuracy in PWM Mode ±1%
  • Typical 32-μA Quiescent Current for both
    Converters
  • 100% Duty Cycle for Lowest Dropout
  • Available in a 10-Pin VSON (3 mm × 3 mm)
  • High Efficiency up to 95%
  • VIN Range from 2.5 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Output Current 600 mA and 1000 mA
  • Adjustable Output Voltage from 0.6 V to VIN
  • Pin Selectable Output Voltage Supports Simple
    Dynamic VoltageScaling
  • Optional EasyScale One-Pin Serial Interface for
    Dynamic Output Voltage Adjustment
  • Power-Save Mode at Light Load Currents
  • 180° Out of Phase Operation
  • Output Voltage Accuracy in PWM Mode ±1%
  • Typical 32-μA Quiescent Current for both
    Converters
  • 100% Duty Cycle for Lowest Dropout
  • Available in a 10-Pin VSON (3 mm × 3 mm)

The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors.

The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)

The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors.

The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)
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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 TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package 數(shù)據(jù)表 (Rev. D) PDF | HTML 2015年 7月 31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
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
EVM 用戶指南 TPS624xxEVM-167 User Guide (Rev. A) 2013年 11月 2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
更多文獻(xiàn)資料 TPS62401_NanoEVM_ Schematic 2007年 2月 13日
更多文獻(xiàn)資料 BQ24070_NanoEVM_OV 2007年 1月 29日
更多文獻(xiàn)資料 TPS62401_NanoEVM_OV 2007年 1月 29日
應(yīng)用手冊(cè) Output Voltage Selection for the TPS62400 Family of Buck Converters 2006年 9月 20日

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仿真模型

TPS62420 PSpice Average Model

SLIM129.ZIP (84 KB) - PSpice Model
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仿真模型

TPS62420 PSpice Transient Model

SLIM130.ZIP (310 KB) - PSpice Model
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仿真模型

TPS62421 PSpice Unencrypted Transient Model Package (Rev. A)

SLVMBC1A.ZIP (87 KB) - PSpice Model
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光繪文件

TPS624xxVM Gerber Files

SLVC132.ZIP (101 KB)
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封裝 引腳 CAD 符號(hào)、封裝和 3D 模型
VSON (DRC) 10 Ultra Librarian

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包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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