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

TPS5405

AKTIV

Abwärtsregler, 6,5 bis 28 V Eingang, fester Ausgang von 5 V bei 2 A, mit integriertem MOSFET

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Datenblatt

TPS5405

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 2 Vin (min) (V) 6.8 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 4.85 Vout (max) (V) 5.15 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0001
Iout (max) (A) 2 Vin (min) (V) 6.8 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 4.85 Vout (max) (V) 5.15 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0001
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an
    External Resistor (Leave pin ROSC floating. Set frequency to
    120 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an
    External Resistor (Leave pin ROSC floating. Set frequency to
    120 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package

The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5405 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.

The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5405 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.
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Typ Titel Datum
* Data sheet Monolithic Non-Synchronous Step-Down Regulator With Integrated MOSFET datasheet (Rev. B) 19 Apr 2013

Design und Entwicklung

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Evaluierungsplatine

TPS5405EVM — TPS5405-Evaluierungsmodul

The TPS5405 is designed to provide fixed 5-V output and 2-A continuous current with an operational range of 6.5 V to 28 V and an external set switching frequency ranging from 50 kHz to 1.1 MHz.
  • Fixed 5-V Output
  • 6.5-V to 28-V Wide Input Voltage Range
  • Up to 2-A Maximum Continuous Output Loading Current
  • (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Referenzdesigns

TIDA-00940 — Referenzdesign für Bias-Stromversorgung, 3 W, mit bis zu 80 % Wirkungsgrad, ohne Isolierung, 15 dB m

TIDA-00940 is a 3-W, non-isolated bias power supply with up to 80% efficiency and excellent EMI performance, designed for motor control and drive subsystems in major appliances to save system costs, and other main benefits here. This reference design provides two non-isolated outputs with buck (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

PMP4467 — 6,5 V bis 28 Vin, 5 V/1,3 A-Ausgang, DC/DC-Referenzdesign-Modul im TO220-Gehäuse

The PMP4467 is a 6.5V to 28Vin, +5Vout, 1.3A reference design module which is implemented in TO220 package, targetting for general LDO replacement. The design includes a non-synchronous step-down regulator TPS5405. The solution has high efficiency, good line, load regulation. The power module was (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins Herunterladen
SOIC (D) 8 Optionen anzeigen
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