IC-Hersteller STMicroelectronics

IC-Hersteller (95)

STMicroelectronics A7986A

3 A step-down switching regulator for automotive applications

Details

TopologieAbwärtswandler
Eingangsspannung4.5-38 V
Schaltfrequenz210-275 kHz
Ausgang 14.5 V / 3 A
IC-Revision6

Beschreibung

The A7986A is a step-down switching regulator with a 3.7 A (min.) current limited embedded Power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions.

The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The HSOP8 package with exposed pad allows the reduction of Rth(JA)down to 40 °C/W.

Eigenschaften

  • Qualified following AEC-Q100 requirements
  • 3 A DC output current
  • 4.5 V to 38 V input voltage
  • Output voltage adjustable from 0.6 V
  • 250 kHz switching frequency, programmable up to 1 MHz
  • Internal soft-start and enable
  • Low dropout operation: 100% duty cycle
  • Voltage feed-forward
  • Zero load current operation
  • Overcurrent and thermal protection
  • HSOP8 package

Remarks:

  • Refer page num 17 more inductor values with series.

Typische Anwendungen

  • Automotive LED driving
  • Dedicated to automotive applications

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster
74477110SPEC
8 Dateien WE-PD SMT-Speicherdrossel 10 7.7 5.5 24 21.5 1260 Standard
Artikel Nr. Daten­blatt Simu­lation
74477110SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster