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IC-Hersteller Alpha & Omega Semiconductor

Alpha & Omega Semiconductor AOZ3101DI

AOZ3101DI

Details

TopologieAbwärtswandler
Eingangsspannung4.5-18 V
Schaltfrequenz400-600 kHz
Ausgang 11 V
IC-Revision1.1

Beschreibung

The AOZ3101DI evaluation board is a fully assembled and tested circuit board built with the AOZ3101DI buck regulator IC. It outputs an adjustable voltage up to 2A of continuous current. The evaluation board requires an input voltage from 4.5 to 18V. The output voltage is preset at 5V and can be adjusted down to 0.8V.

The AOZ3101DI-EVB circuit has features like current limit, short circuit protection, input under voltage lock out, internal soft start and thermal shut down. It operates at a fixed 500 kHz switching frequency at heavy load and with PEM (pulse energy mode) at light load. The integrated internal MOSFETs minimize component count, board area and total cost.

The AOZ3101DI-EVB demonstrates the simple buck converter design. Only one resistor value change is needed for different output voltage designs

Eigenschaften

  • 4.5V to 18V operating input voltage range
  • Synchronous Buck with internal low rdson (150mΩ/70mΩ)high-side and low-side MOSFETs
  • Internal soft start
  • PEM (pulse energy mode) enables >80% efficiency with Io=10mA (Vin=12V, Vo=5V)
  • Up to 96% efficiency with Io=500mA (Vin=12V, Vo=5V)
  • Adjacent pin short protection
  • Output voltage adjustable to 0.8V
  • 2A co
  • Pre-bias start-up
  • Extensive protection features
  • DFN3X3 and SO8 package

Typische Anwendungen

  • High performance cable modems
  • High performance LCD TV
  • Industrial- Appliance

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
LR
(µH)
ISAT,10%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Muster
744314330SPEC
8 Dateien WE-HCI SMT-Hochstrominduktivität 3.3 10.9 2.2 3.2 9 65 Superflux SMT
Artikel Nr. Daten­blatt Simu­lation
744314330SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
LR
(µH)
ISAT,10%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Muster