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TPS62303

AKTIV

Abwärtswandler, 1,8 V, 500 mA, 3 MHz, im QFN- oder Chip-Scale-Gehäuse

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Datenblatt

Eine neuere Version dieses Produkts ist verfügbar

open-in-new Alternativen vergleichen
Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.
TPS62807 AKTIV Abwärtswandler mit extrem niedrigem Ruhestrom, in einem 0,7 mm x 1,05 mm großen WCSP-Gehäuse, 1,75-V Smaller solution size and lower quiescent current

TPS62303

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000086 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.5 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000086 Duty cycle (max) (%) 100
VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • Up to 93% Efficiency at 3-MHz Operation
  • Up to 500-mA Output Current at VI = 2.7 V
  • 3-MHz Fixed Frequency Operation
  • Best in Class Load and Line Transient
  • Complete 1-mm Component Profile Solution
  • –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
  • 35-ns Minimum On-Time
  • Power-Save Mode Operation at Light Load Currents
  • Fixed and Adjustable Output Voltage
  • Only 86-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Synchronizable On the Fly to External
    Clock Signal
  • Integrated Active Power-Down Sequencing (TPS6232x only)
  • Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree™, and NanoStar™ (CSP) Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN and Bluetooth™ Applications
    • Micro DC-DC Converter Modules
    • PDAs, Pocket PCs
    • USB-Based DSL Modems
    • Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instruments.
  • Up to 93% Efficiency at 3-MHz Operation
  • Up to 500-mA Output Current at VI = 2.7 V
  • 3-MHz Fixed Frequency Operation
  • Best in Class Load and Line Transient
  • Complete 1-mm Component Profile Solution
  • –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
  • 35-ns Minimum On-Time
  • Power-Save Mode Operation at Light Load Currents
  • Fixed and Adjustable Output Voltage
  • Only 86-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Synchronizable On the Fly to External
    Clock Signal
  • Integrated Active Power-Down Sequencing (TPS6232x only)
  • Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree™, and NanoStar™ (CSP) Packaging
  • APPLICATIONS
    • Cell Phones, Smart-Phones
    • WLAN and Bluetooth™ Applications
    • Micro DC-DC Converter Modules
    • PDAs, Pocket PCs
    • USB-Based DSL Modems
    • Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instruments.

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.

The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.

The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt 500mA, 3MHz Synchronous Step-Down Converter in Chip Scale Packaging datasheet (Rev. E) 12.11.2007
Anwendungshinweis QFN and SON PCB Attachment (Rev. C) PDF | HTML 06.12.2023
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14.06.2019
Anwendungshinweis Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11.12.2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22.06.2018
Anwendungshinweis Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29.11.2017
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24.10.2017
Anwendungshinweis Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15.06.2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24.10.2016
Anwendungshinweis Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 17.08.2015
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
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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