TPS62421

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采用 3x3mm QFN 小型封装的 2.25MHz 600mA/1000mA 双通道降压转换器

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数据表

document-pdfAcrobat TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package 数据表 (Rev. D) (英语) PDF | HTML

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TPS62442

正在供货

采用 QFN 封装的 2.75V 至 6V 双路 2A 或 3A/1A 降压转换器 Smaller solution size with higher output voltage range 0.6 V to 5.5 V

TPS62421

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数据表

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产品详情

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

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000032

Duty cycle (max) (%)

100

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

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000032

Duty cycle (max) (%)

100

VSON (DRC)

10

9 mm² (3 mm × 3 mm)

High Efficiency up to 95%
V_IN 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 V_IN
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%
V_IN 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 V_IN
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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顶层文档	类型	标题	格式选项	下载最新的英语版本		日期
*	数据表	TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package 数据表 (Rev. D)	PDF \| HTML			2015-7-31
	应用手册	QFN 和 SON PCB 连接 (Rev. C)	PDF \| HTML	英语版 (Rev.C)	PDF \| HTML	2024-1-5
	模拟设计期刊	Methods of output-voltage adjustment for DC/DC converters				2019-6-14
	应用手册	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)				2018-12-11
	模拟设计期刊	Understanding 100% mode in low-power DC/DC converters				2018-6-22
	应用手册	Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B)				2017-11-29
	模拟设计期刊	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold				2017-10-24
	模拟设计期刊	Testing tips for applying external power to supply outputs without an input voltage				2016-10-24
	应用手册	Basic Calculation of a Buck Converter's Power Stage (Rev. B)	PDF \| HTML			2015-8-17
	模拟设计期刊	实现降压型转换器出色 PCB 布局的五个步骤		英语版		2015-5-1
	应用手册	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)				2012-1-13
	模拟设计期刊	IQ：它是什么、不是什么以及如何使用		英语版		2011-8-17
	更多文献资料	TPS62401_NanoEVM_ Schematic				2007-2-13
	更多文献资料	TPS62401_NanoEVM_OV				2007-1-29
	更多文献资料	BQ24070_NanoEVM_OV				2007-1-29
	应用手册	Output Voltage Selection for the TPS62400 Family of Buck Converters				2006-9-20