TPS62250

Name: TPS62250
Brand: TI
SKU: TPS62250
Price: 0.723 USD

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Abwärtswandler, 2,25 MHz, 1 A Spitzenstrom, mit Strombegrenzung

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Datenblatt

document-pdfAcrobat Peak Current Limited Step Down Converter for USB Applications datasheet (Englisch)

TPS62250

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.7

Vin (max) (V)

6

Vin (min) (V)

2

Vout (max) (V)

6

Vout (min) (V)

0.6

Features

Enable, Forced PWM, 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)

0.7

Vin (max) (V)

6

Vin (min) (V)

2

Vout (max) (V)

6

Vout (min) (V)

0.6

Features

Enable, Forced PWM, 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 x 2

High Efficiency Step Down Converter
Max Peak Current Limit of 1A, Ideal for USB Powered Applications
V_IN Range Optimized for USB from 2V to 6V
2.25 MHz Fixed Frequency Operation
Power Save Mode at Light Load Currents
Output Voltage Accuracy in PWM mode ±1.5%
Typ. 15 µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Soft Start
Voltage Positioning at Light Loads
Available in a Small 2×2×0,8mm SON package
Allows <1mm Solution Height
APPLICATIONS
- Portable USB Peripherals
- Wireless Modem Applications
- USB PCTV Applications

High Efficiency Step Down Converter
Max Peak Current Limit of 1A, Ideal for USB Powered Applications
V_IN Range Optimized for USB from 2V to 6V
2.25 MHz Fixed Frequency Operation
Power Save Mode at Light Load Currents
Output Voltage Accuracy in PWM mode ±1.5%
Typ. 15 µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Soft Start
Voltage Positioning at Light Loads
Available in a Small 2×2×0,8mm SON package
Allows <1mm Solution Height
APPLICATIONS
- Portable USB Peripherals
- Wireless Modem Applications
- USB PCTV Applications

The TPS62250 device is a high efficient synchronous step down dc-dc converter optimized for USB powered applications. It provides up to 1A peak output current and limits the average input current to 700mA, making it ideal for applications connected to a USB host. With an wide input voltage range of 2V to 6V, the device supports applications powered by the USB host as well as general applications requiring large output capacitors.

The TPS62250 operates at 2.25MHz 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.

The TPS62250 is available in a very small 2×2 6 pin SON package.

The TPS62250 device is a high efficient synchronous step down dc-dc converter optimized for USB powered applications. It provides up to 1A peak output current and limits the average input current to 700mA, making it ideal for applications connected to a USB host. With an wide input voltage range of 2V to 6V, the device supports applications powered by the USB host as well as general applications requiring large output capacitors.

The TPS62250 operates at 2.25MHz 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.

The TPS62250 is available in a very small 2×2 6 pin SON package.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Data sheet	Peak Current Limited Step Down Converter for USB Applications datasheet		17 Sep 2008
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	06 Dez 2023
	Analog Design Journal	Methods of output-voltage adjustment for DC/DC converters		14 Jun 2019
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11 Dez 2018
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Analog Design Journal	Understanding 100% mode in low-power DC/DC converters		22 Jun 2018
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		24 Okt 2017
	Application note	Extending the Soft Start Time Without a Soft Start Pin (Rev. B)		15 Jun 2017
	Analog Design Journal	Testing tips for applying external power to supply outputs without an input voltage		24 Okt 2016
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)		17 Aug 2015
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		29 Jan 2015
	Analog Design Journal	Design considerations for a resistive feedback divider in a DC/DC converter		26 Apr 2012
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		13 Jan 2012
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17 Jun 2011

Design und Entwicklung

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