TPS54291

AKTIV

Synchroner Zweifach-Abwärtswandler, 4,5 bis 18 V Eingangsspannung, 600 kHz, 1,5/2,5 A

Jetzt bestellen

Datenblatt

document-pdfAcrobat TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET datasheet (Rev. A) (Englisch) PDF | HTML

TPS54291

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

15.3

Vout (min) (V)

0.8

Features

Enable, Phase Interleaving, Synchronous Rectification

Control mode

current mode

Operating temperature range (°C)

-40 to 145

Iq (typ) (A)

0.0018

Duty cycle (max) (%)

85

Rating

Catalog

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

15.3

Vout (min) (V)

0.8

Features

Enable, Phase Interleaving, Synchronous Rectification

Control mode

current mode

Operating temperature range (°C)

-40 to 145

Iq (typ) (A)

0.0018

Duty cycle (max) (%)

85

HTSSOP (PWP)

16

32 mm² (5 mm × 6.4 mm)

4.5-V to 18-V Input Range
Output Voltage Range 0.8 V to D_MAX × V_IN
Fully Integrated Dual Buck: 1.5 A and 2.5 A
Three Fixed Switching Frequency Versions:
- TPS54290: 300 kHz
- TPS54291: 600 kHz
- TPS54292: 1.2 MHz
Integrated UVLO
0.8 V_REF With 1% Accuracy (0°C to 85°C)
Internal Soft Start:
- TPS54290: 5.2 ms
- TPS54291: 2.6 ms
- TPS54292: 1.3 ms
Dual PWM Outputs 180° Out-of-Phase
Dedicated Enable for Each Channel
Current Mode Control for Simplified Compensation
External Compensation
Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit
Integrated Bootstrap Switch
Thermal Shutdown Protection at 145°C
16-Pin PowerPAD™ HTSSOP Package
APPLICATIONS
- Set-Top Boxes
- Digital TVs
- Power for DSP
- Consumer Electronics

All other trademarks are the property of their respective owners

4.5-V to 18-V Input Range
Output Voltage Range 0.8 V to D_MAX × V_IN
Fully Integrated Dual Buck: 1.5 A and 2.5 A
Three Fixed Switching Frequency Versions:
- TPS54290: 300 kHz
- TPS54291: 600 kHz
- TPS54292: 1.2 MHz
Integrated UVLO
0.8 V_REF With 1% Accuracy (0°C to 85°C)
Internal Soft Start:
- TPS54290: 5.2 ms
- TPS54291: 2.6 ms
- TPS54292: 1.3 ms
Dual PWM Outputs 180° Out-of-Phase
Dedicated Enable for Each Channel
Current Mode Control for Simplified Compensation
External Compensation
Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit
Integrated Bootstrap Switch
Thermal Shutdown Protection at 145°C
16-Pin PowerPAD™ HTSSOP Package
APPLICATIONS
- Set-Top Boxes
- Digital TVs
- Power for DSP
- Consumer Electronics

All other trademarks are the property of their respective owners

The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.

Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A.

Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.

180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.

The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.

Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A.

Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.

180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.

filter

Andere DC/DC-Wandler suchen

Herunterladen Video mit Transkript ansehen Video

Technische Dokumentation

Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.

Alle anzeigen 3

Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET datasheet (Rev. A)	PDF \| HTML	29.12.2016
	Auswahlhilfe	Power Management Guide 2018 (Rev. R)		25.06.2018
	Anwendungshinweis	Understanding Thermal Dissipation and Design of a Heatsink		04.05.2011

Design und Entwicklung

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

Evaluierungsplatine

TPS54291EVM-431 — 12 V-Eingang, 3,3 V, 1,5 A und 1,2 V und 2,5 A, Dual-Synchron-Abwärtswandler – Evaluierungsmodul

The TPS54291EVM-431 evaluation module (EVM) is a dual synchronous buck converter providing fixed3.3V and 1.2V outputs at up to 1.5A and 2.5A respectively from a 12V bus. The EVM is designed to start-up from a single supply, so no additional bias voltages are require for start-up. The module uses (...)

Benutzerhandbuch: PDF | HTML

Unterstützte Produkte und Hardware

Vorrätig

Limit:

Zum Bestellen bitte anmelden

lock

Melden Sie sich an, um den Lagerbestand einzusehen

??asset.out-of-stock-ti_de_DE??

Nicht verfügbar

Simulationsmodell