Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)

TPS55383

AKTIV

Abwärtswandler, 4,5 bis 28 V Eingangsspannung, zweifacher Ausgang 3 A, 300 kHz, mit externer Kompens

Eine neuere Version dieses Produkts ist verfügbar

Ähnliche Funktionalität wie verglichener Baustein
TPS62933 AKTIV Synchroner Abwärtswandler mit niedrigem IQ, 3,8 bis 30 V, 3 A, 200 kHz bis 2,2 MHz, im SOT-583-Gehäu Wider Vin, higher frequency and lower IQ.

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Enable, Phase Interleaving Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iq (typ) (µA) 1800 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Enable, Phase Interleaving Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25.2 Iq (typ) (µA) 1800 Duty cycle (max) (%) 90
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 4.5-V to 28-V Input Range
  • Output Voltage 0.8 V to 90% of Input Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS55383: 300 kHz
    • TPS55386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.75% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes
  • Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
  • 85-Ω Internal High-Side MOSFETs
  • Current Mode Control with External Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148°C
  • 16-Pin PowerPAD HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.

  • 4.5-V to 28-V Input Range
  • Output Voltage 0.8 V to 90% of Input Voltage
  • Output Current Up to 3 A
  • Two Fixed Switching Frequency Versions:
    • TPS55383: 300 kHz
    • TPS55386: 600 kHz
  • Three Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.75% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes
  • Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
  • 85-Ω Internal High-Side MOSFETs
  • Current Mode Control with External Compensation
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at +148°C
  • 16-Pin PowerPAD HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.

The TPS55383 and TPS55386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

The TPS55383 and TPS55386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

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Technische Dokumentation

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Alle anzeigen 3
Typ Titel Datum
* Data sheet TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET datasheet 26 Sep 2008
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide Using the TPS55386EVM-363 A 12V Input 5.0V & 3.3V Output 3A Non-Sync Buck Conver 07 Nov 2008

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS55386EVM-363 — TPS55386 13,2 V-Eingang, 3,3 und 5 V-Doppelausgang, 3 A – Evaluierungsmodul

The TPS55383EVM-363 evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0V and 3.3V output at up to 3A each from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the (...)

Benutzerhandbuch: PDF
Simulationsmodell

TPS55383 TINA-TI Average 3.3V Reference Design

SLUM045.ZIP (166 KB) - TINA-TI Reference Design
Simulationsmodell

TPS55383 TINA-TI Average 5V Reference Design

SLUM046.ZIP (166 KB) - TINA-TI Reference Design
Simulationsmodell

TPS55383 TINA-TI Average Spice Model

SLUM047.ZIP (4 KB) - TINA-TI Spice Model
Simulationsmodell

TPS55383 TINA-TI Transient Reference Design

SLIM057.TSC (1060 KB) - TINA-TI Reference Design
Simulationsmodell

TPS55383 TINA-TI Transient Spice Model

SLIM058.TSM (25 KB) - TINA-TI Spice Model
Simulationsmodell

TPS55383 Unencrypted PSpice Average Model Package (Rev. A)

SLUM090A.ZIP (129 KB) - PSpice Model
Simulationsmodell

TPS55383 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM111A.ZIP (149 KB) - PSpice Model
Berechnungstool

SLVC184 TPS5538x Designer Rev 1.0

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
TPS55383 Abwärtswandler, 4,5 bis 28 V Eingangsspannung, zweifacher Ausgang 3 A, 300 kHz, mit externer Kompens TPS55386 Abwärtswandler, 4,5 bis 28 V Eingangsspannung, zweifacher Ausgang 3 A, 600 kHz, mit externer Kompens
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HTSSOP (PWP) 16 Ultra Librarian

Bestellen & Qualität

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