TPS62242

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采用 2x2mm SON/TSOT23 封装的 1.2V/300mA 降压转换器

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数据表

document-pdfAcrobat TPS6224x 2.25-MHz 300-mA Step-Down Converter in 2 x 2 WSON and SOT Package 数据表 (Rev. C) (英语) PDF | HTML

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采用 SOT583 封装的 2.7V 至 6V、0.5A 固定频率降压转换器 Leaded SOT583 package.

TPS62242

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数据表

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产品详情

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.3

Vin (max) (V)

6

Vin (min) (V)

2

Vout (max) (V)

1.2

Vout (min) (V)

1.2

Features

Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000015

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.3

Vin (max) (V)

6

Vin (min) (V)

2

Vout (max) (V)

1.2

Vout (min) (V)

1.2

Features

Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000015

Duty cycle (max) (%)

100

WSON (DRV)

6

4 mm² (2 mm × 2 mm)

High Efficiency - Greater Than 94%
Output Current up to 300 mA
V_IN Range from 2 V to 6 V for Li-ion Batteries With
Extended Voltage Range
2.25-MHz Fixed-Frequency Operation
Power Save Mode at Light Load Currents
Output Voltage Accuracy in PWM Mode ±1.5%
Adjustable Output Voltage from 0.6 V to V_IN
Typical 15-µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Available in a SOT (5) and 2-mm × 2-mm × 0.8-
mm WSON (6) Package
Allows <1-mm Solution Height

High Efficiency - Greater Than 94%
Output Current up to 300 mA
V_IN Range from 2 V to 6 V for Li-ion Batteries With
Extended Voltage Range
2.25-MHz Fixed-Frequency Operation
Power Save Mode at Light Load Currents
Output Voltage Accuracy in PWM Mode ±1.5%
Adjustable Output Voltage from 0.6 V to V_IN
Typical 15-µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Available in a SOT (5) and 2-mm × 2-mm × 0.8-
mm WSON (6) Package
Allows <1-mm Solution Height

The TPS6224x device is a highly efficient synchronous step-down DC-DC converter. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery powered portable applications like mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline, 3.3-V and 5-V input voltage rails.

The TPS6224x operates at 2.25-MHz fixed switching frequency and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range.

The power save mode is optimized for low output voltage ripple. For low-noise applications, the device can be forced into fixed-frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6224x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6224x operates over a free-air temperature range of –40°C to 85°C. The device is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

The TPS6224x device is a highly efficient synchronous step-down DC-DC converter. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery powered portable applications like mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline, 3.3-V and 5-V input voltage rails.

The TPS6224x operates at 2.25-MHz fixed switching frequency and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range.

The power save mode is optimized for low output voltage ripple. For low-noise applications, the device can be forced into fixed-frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6224x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6224x operates over a free-air temperature range of –40°C to 85°C. The device is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

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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	TPS6224x 2.25-MHz 300-mA Step-Down Converter in 2 x 2 WSON and SOT Package 数据表 (Rev. C)	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
	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
	应用手册	Extending the Soft Start Time Without a Soft Start Pin (Rev. B)				2017-6-15
	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