Advanced Power



Topologie: Buck
Eingangsspannung (min.): 12.00 V
Eingangsspannung (max.): 12.00 V
Schaltfrequenz (min.): 180.00 kHz
Schaltfrequenz (max.): 220.00 kHz
Ausgang 1: 3.30 V / 10.000 A


The APU3037 controller IC is designed to provide a low cost synchronous Buck regulator for on-board DC to DC converter applications. With the migration of today’s ASIC products requiring low supply voltages such as 1.8V and lower, together with currents in excess of 3A, traditionallinear regulators are simply too lossy to be used when input supply is 5V or even in some cases with 3.3 input supply. The APU3037 together with dual N-channel MOSFETs such as AP60T03, provide a low cost solutionfor such applications. This device features an internal 200KHz oscillator (400KHz for "A" version), under-voltage lockout for both Vcc and Vc supplies, an external programmable soft-start function as well as output under-voltage detection that latches off the device when anoutput short is detected.


  • Synchronous Controller in 8-Pin Package
  • Operating with single 5V or 12V
  • supply voltage
  • Internal 200KHz Oscillator(400KHz for APU3037A)
  • Soft-Start Function
  • Fixed Frequency Voltage Mode
  • 500mA Peak Output Drive Capability
  • Protects the output when controlFET is shorted
  • RoHS Compliant


  Artikel Nr. SPEC Produktserie L
Material Version RDC typ.
RDC max.
Montageart Muster
7443550320 PDF WE-HCI SMT-Hochstrominduktivität 3.2 16 2.2 15 5.3 34 WE-PERM SMT
7445601 PDF WE-PD4 SMT-Speicherdrossel 1 8.6 14.25 95 0.004 0.007 SMT

Weitere Anwendungen und Artikel von Würth Elektronik zu diesem IC

  • APU3037
    Topologie: Buck, Eingangsspannung (min.): 5.00 V, Eingangsspannung (max.): 5.00 V, Schaltfrequenz (min.): 180.00 kHz, Schaltfrequenz (max.): 220.00 kHz, Ausgang 1: 3.30 V / 4.000 A