Startseite Energiemanagement AC/DC & DC/DC converters (integrated FET)
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Energiemanagement
AC/DC & DC/DC converters (integrated FET)

TPS62700

AKTIV

Abwärtswandler, 2 MHz, 650 mA, für HF-Leistungsverstärker in winzigem 8-poligem WCSP-Gehäuse

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Datenblatt

TPS62700

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 0.65 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.3 Vout (max) (V) 3.09 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.001
Iout (max) (A) 0.65 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.3 Vout (max) (V) 3.09 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.001
DSBGA (YZF) 8 3.0625 mm² 1.75 x 1.75
  • High-Efficiency Step-Down Converter
  • Output Current up to 650 mA
  • VIN Range From 2.5 to 6.0 V
  • 2.0-MHz Fixed-Frequency Operation
  • Clock Dithering (TPS62701)
  • Dynamic Voltage Control With External Reference (1.3 V to 3.09 V)
  • Fast Output-Voltage Settling (1.3 V to 3.09 V in 20 µs)
  • Soft Start
  • Overload Protection
  • Undervoltage Lockout
  • Thermal Protection
  • 8-Pin WCSP Package
  • APPLICATIONS
    • Cell Phones, Smart Phones
    • Battery-Powered RF Amplifier
  • High-Efficiency Step-Down Converter
  • Output Current up to 650 mA
  • VIN Range From 2.5 to 6.0 V
  • 2.0-MHz Fixed-Frequency Operation
  • Clock Dithering (TPS62701)
  • Dynamic Voltage Control With External Reference (1.3 V to 3.09 V)
  • Fast Output-Voltage Settling (1.3 V to 3.09 V in 20 µs)
  • Soft Start
  • Overload Protection
  • Undervoltage Lockout
  • Thermal Protection
  • 8-Pin WCSP Package
  • APPLICATIONS
    • Cell Phones, Smart Phones
    • Battery-Powered RF Amplifier

The TPS6270x device is a high-efficiency synchronous step-down DC-DC converter optimized for RF power-amplifier (PA) applications. It provides up to 650 mA of output current from a single Li-Ion cell.

The device converts input voltages from 2.5 to 6.0 V down to an output voltage set by an external analog reference voltage applied to the pin VCON. The output voltage follows the external reference by an internal gain of 2.5 within the limits of 1.3 V to 3.09 V. This scheme adjusts the output voltage of the DC/DC converter and therefore the output power of an RF-PA.

The TPS6270x operates in fixed-frequency PWM mode at a 2.0-MHz switching frequency to minimize RF interference. This converter operates with only three small external components; an input capacitor, inductor and output capacitor. The TPS62701 has in addition a built-in clock-dithering circuit to reduce RF noise.

The TPS6270x is available in a tiny 8 pin lead free WCSP package for smallest solution size.

The TPS6270x device is a high-efficiency synchronous step-down DC-DC converter optimized for RF power-amplifier (PA) applications. It provides up to 650 mA of output current from a single Li-Ion cell.

The device converts input voltages from 2.5 to 6.0 V down to an output voltage set by an external analog reference voltage applied to the pin VCON. The output voltage follows the external reference by an internal gain of 2.5 within the limits of 1.3 V to 3.09 V. This scheme adjusts the output voltage of the DC/DC converter and therefore the output power of an RF-PA.

The TPS6270x operates in fixed-frequency PWM mode at a 2.0-MHz switching frequency to minimize RF interference. This converter operates with only three small external components; an input capacitor, inductor and output capacitor. The TPS62701 has in addition a built-in clock-dithering circuit to reduce RF noise.

The TPS6270x is available in a tiny 8 pin lead free WCSP package for smallest solution size.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 2 MHz 650 mA Step Down Converter for RF Power Amplifiers in Tiny 8-pin WCSP Pkg datasheet (Rev. B) 23 Jun 2008
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dez 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Okt 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
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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