STMicroelectronics

A7986A

3 A step-down switching regulator for automotive applications

Topologie: Other
Schaltfrequenz (min.): 210.00 kHz
Schaltfrequenz (max.): 275.00 kHz

Erstveröffentlichung am 21.02.2013, Version 6 vom

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.

Merkmale

  • 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 packageRemarks:
  • Refer page num 17 more inductor values with series.

Artikel

  Artikel Nr. SPEC Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Version Muster
744777003 PDF WE-PD SMT-Speicherdrossel 3.3 3.5 4.6 25 30 55 Standard
744777004 PDF WE-PD SMT-Speicherdrossel 4.7 3.2 4 25 40 37 Standard

Weitere Anwendungen und Artikel von Würth Elektronik zu diesem IC

  • A7986A
    Topologie: Buck, Eingangsspannung (min.): 4.50 V, Eingangsspannung (max.): 38.00 V, Schaltfrequenz (min.): 210.00 kHz, Schaltfrequenz (max.): 275.00 kHz, Ausgang 1: 4.50 V / 3.000 A