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Richtek RT2856

6A, 18V, Synchronous Step-Down Converter

Details

Topologie Abwärtswandler
Eingangsspannung 4.5-18 V
Schaltfrequenz 200-1600 kHz
Ausgang 1 3.3 V / 6 A
IC-Revision DS2856

Beschreibung

6A, 18V, Synchronous Step-Down ConverterDS2856-10 October 2016The RT2856 is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 6A output current from a 4.5V to 18V input supply. The RT2856 current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during startup. Fault condition protections include output under-voltage protection, output over-voltage protection, and overtemperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.

Eigenschaften

Low RDS(ON) Power MOSFET Switches 26mΩ/19mΩ Input Voltage Range : 4.5V to 18V Adjustable Switching Frequency : 200kHz to 1.6MHz Current-Mode Control Synchronous to External Clock : 200kHz to 1.6MHz Accurate Voltage Reference 0.8V ± 1%, Over −40°Cto 85°C Monotonic Start-Up into Pre-biased Outputs Adjustable Soft-Start Power Good Indicator Under-Voltage and Over-Voltage Protection Input Under-Voltage Lockout RoHS Compliant and Halogen Free

Typische Anwendungen

  • Notebook Computers
  • High Performance Point of Load Regulation/ High Density and Distributed Power Systems

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Material Version Muster
7443550320
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 3.2 16 2.2 15 5.3 34 WE-PERM SMT
744325330
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 3.3 12 2.4 15 5.9 54 Superflux SMT
7443551370
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 3.7 17 2.6 16 4.9 26 WE-PERM SMT
744325420
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 4.2 11 3.3 14 7.1 33 Superflux SMT
7443550480
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 4.8 11 3.55 13 10.5 28 WE-PERM SMT
744325550
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-HCI SMT-Hochstrominduktivität 5.5 10 4.3 12 10.3 30 Superflux SMT
Muster
Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Material Version Muster