Demoboard XR6658EVB

1A 1.5MHz PFM/PWM Synchronous Step-Down Converter

Topologie: Buck
Eingangsspannung (min.): 3.30 V
Eingangsspannung (max.): 5.50 V
Ausgang 1: 3.30 V / 1.000 A

Erstveröffentlichung am 07.02.2012, Version 2.1.0 vom


The XRP6658 is a synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current and optimized for portable battery-operated operations. Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6658 reduces the overall component count and solution footprint as well as providing a low output voltage ripple and excellent line and load regulation. It also implements a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable as low as 0.6V with a better than 3% accuracy while a low quiescent current supports the most stringent battery operations conditions. Built-in over temperature and under voltage lock-out protections insure safe operations under abnormal operating conditions.The XRP6658 is offered in a RoHS compliant, “green”/halogen free 5-pin SOT23 package.


  • Guaranteed 1A Output Current
  • Input Voltage: 2.5V to 5.5V
  • 1.5MHz PWM Current Mode Control
  • PFM Mode Operations at Light Load
  • 100% Duty Cycle LDO Mode Operations
  • Achieves 97% Efficiency
  • Adjustable Output Voltage Range
  • As Low as 0.6V with ±3% Accuracy
  • Internal Compensation Network
  • 15μA Quiescent Current
  • Over Temperature & UVLO Protections
  • RoHS Compliant “Green”/Halogen Free
  • 5-Pin SOT23 Package


  Artikel Nr. SPEC Produktserie L1
IR 1
RDC1 typ
RDC1 max.
fres 1
Pins Reihen Gender Typ Verpackung Muster
7440430022 PDF WE-TPC SMT-Speicherdrossel 2.2 2.5 2.35 27 28 100
61303611121 PDF WR-PHD 2.54 mm THT Pin Header 3 36 Single Pin Header Gerade Beutel
609002115121 PDF WR-PHD 2.54 mm Jumper with Test Point & Pullback 3 1 Jumper Beutel