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IC-Hersteller (96)

Richtek RT6255A | Demoboard EVB_RT6255AHGJ6F-00

5A, 18V, 500kHz, Step-Down Converter

Details

TopologieAbwärtswandler
Eingangsspannung4.5-18 V
Ausgang 15 V / 5 A

Beschreibung

The RT6255A is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 5A output current from a 4.5V to 18V input supply.The RT6255A adopts ACOT architecture to allow the transient response to be improved and keep in constant frequency. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection and thermal shutdown

Eigenschaften

  • 4.5V to 18V Input Voltage Range
  • 5A Output Current
  • Constant-on-Time Mode to Enables Fast TransientResponse
  • Low Output Ripple and Allows Ceramic OutputCapacitor
  • 500kHz Switching Frequency
  • High Efficient Internal Power MOSFET SwitchOptimized for Lower Duty Cycle Applications
  • Integrated 45mΩ/23mΩMOSFETs
  • Adjustable Output Voltage from 0.6V to 5V
  • Internal Soft-Start (1.5ms typ.)
  • Built-In UVP/OTP
  • Power Good Indicator (90%)
  • Input Under Voltage Lockout

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Muster
7443340470SPEC
8 Dateien WE-HCC SMT-Hochstrominduktivität 4.7 8.9 7.7 9.5 13.5 Ferrite 3.5
Artikel Nr. Daten­blatt Simu­lation
7443340470SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Muster