TPS62650

AKTIV

Synchroner Abwärtswandler, 800 mA, 6 MHz, in Chip-Scale-Gehäuse

Jetzt bestellen

Datenblatt

document-pdfAcrobat 800-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER datasheet (Rev. B) (Englisch)

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Alternativen vergleichen

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.

TPS62860

AKTIV

Abwärtswandler mit extrem niedrigem IQ mit I2C/VSEL-Schnittstelle, 1,75 V bis 5,5 V, 0,6 A Buck converter with I2C interface in a smaller WCSP package

TPS62650

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.8

Vin (max) (V)

5.5

Vin (min) (V)

2.3

Vout (max) (V)

1.4375

Vout (min) (V)

0.75

Features

Enable, Light load efficiency, Output discharge, Synchronous Rectification

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000038

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.8

Vin (max) (V)

5.5

Vin (min) (V)

2.3

Vout (max) (V)

1.4375

Vout (min) (V)

0.75

Features

Enable, Light load efficiency, Output discharge, Synchronous Rectification

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000038

Duty cycle (max) (%)

100

DSBGA (YFF)

9

1.96000000000000028000000000000001 mm² (— mm × — mm)

86% Efficiency at 6 MHz Operation
38µA Quiescent Current
Wide V_IN Range From 2.3 V to 5.5 V
6MHz Regulated Frequency Operation
Best-In-Class Load and Line Transient
±2% PWM DC Voltage Accuracy
Automatic PFM/PWM Mode Switching
Low Ripple Light-Load PFM
I²C Compatible Interface up to 3.4 Mbps
Pin-Selectable Output Voltage (VSEL)
Internal Soft-Start, <150-µs Start-Up Time
Current Overload and Thermal Shutdown Protection
Three Surface-Mount External Components Required
(One MLCC Inductor, Two Ceramic Capacitors)
Complete Sub 1-mm Component Profile Solution
Total Solution Size <13mm²
Available in a 9-Pin NanoFree (CSP) Packaging
APPLICATIONS
- SmartReflex Compliant Power Supply
- OMAP Application Processor Core Supply
- Cell Phones, Smart-Phones
- Micro DC-DC Converter Modules

NanoFree Is a trademark of Texas Instruments
SmartReflex Is a trademark of Texas Instruments
OMAP Is a trademark of Texas Instruments

86% Efficiency at 6 MHz Operation
38µA Quiescent Current
Wide V_IN Range From 2.3 V to 5.5 V
6MHz Regulated Frequency Operation
Best-In-Class Load and Line Transient
±2% PWM DC Voltage Accuracy
Automatic PFM/PWM Mode Switching
Low Ripple Light-Load PFM
I²C Compatible Interface up to 3.4 Mbps
Pin-Selectable Output Voltage (VSEL)
Internal Soft-Start, <150-µs Start-Up Time
Current Overload and Thermal Shutdown Protection
Three Surface-Mount External Components Required
(One MLCC Inductor, Two Ceramic Capacitors)
Complete Sub 1-mm Component Profile Solution
Total Solution Size <13mm²
Available in a 9-Pin NanoFree (CSP) Packaging
APPLICATIONS
- SmartReflex Compliant Power Supply
- OMAP Application Processor Core Supply
- Cell Phones, Smart-Phones
- Micro DC-DC Converter Modules

NanoFree Is a trademark of Texas Instruments
SmartReflex Is a trademark of Texas Instruments
OMAP Is a trademark of Texas Instruments

The TPS6265x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to 800mA load current and allows the use of small, low cost inductors and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I²C interface down to 0.75V, the device supports low-voltage DSPs and processors core power supplies in smart-phones and handheld computers.

The TPS6265x operates at a regulated 6MHz switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range. In the shutdown mode, the current consumption is reduced to less than 3.5µA.

The serial interface is compatible with Standard, Fast/Fast Plus and High-Speed mode I²C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 12.5mV, for setting the output voltage or reprogramming the mode of operation (PFM/PWM or Forced PWM) for instance.

The TPS6265x is available in an 9-pin chip-scale package (CSP).

The TPS6265x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to 800mA load current and allows the use of small, low cost inductors and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I²C interface down to 0.75V, the device supports low-voltage DSPs and processors core power supplies in smart-phones and handheld computers.

The TPS6265x operates at a regulated 6MHz switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range. In the shutdown mode, the current consumption is reduced to less than 3.5µA.

The serial interface is compatible with Standard, Fast/Fast Plus and High-Speed mode I²C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 12.5mV, for setting the output voltage or reprogramming the mode of operation (PFM/PWM or Forced PWM) for instance.

The TPS6265x is available in an 9-pin chip-scale package (CSP).

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	800-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER datasheet (Rev. B)		25.07.2011
	Anwendungshinweis	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11.12.2018
	Auswahlhilfe	Power Management Guide 2018 (Rev. R)		25.06.2018
	Analog Design Journal	Understanding 100% mode in low-power DC/DC converters		22.06.2018
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		24.10.2017
	Analog Design Journal	Testing tips for applying external power to supply outputs without an input voltage		24.10.2016
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		29.01.2015
	Anwendungshinweis	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		13.01.2012
	Anwendungshinweis	Basic Calculation of a Buck Converter's Power Stage (Rev. C)	PDF \| HTML	20.12.2011
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17.06.2011

Design und Entwicklung

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