MaxLinear

XRP6668

1A/1A Dual Channel 1.5MHz Sync. Step Down Converter

Topologie: Buck
Eingangsspannung (min.): 2.50 V
Eingangsspannung (max.): 5.50 V
Schaltfrequenz (min.): 1200.00 kHz
Schaltfrequenz (max.): 1800.00 kHz
Ausgang 1: 1.80 V / 1.000 A
Ausgang 2: 3.30 V / 1.000 A

Erstveröffentlichung am 16.09.2010, Version 1.2.0 vom

Beschreibung

The XRP6668 is a dual channel synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current per channel and optimized for portable battery-operated operations.Based on a current mode 1.5MHz constant frequency PWM control scheme, the devices reduce the overall component count and solution footprint as well as provide a low output voltage ripple and excellent line and load regulation. Both devices also implement a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable to as low as 0.6V with better than 3% accuracy while a low quiescent current supports the most stringent battery operation conditions. Built-in over temperature and under voltage lock-out protections insure safe operations under abnormal operating conditions.XRP6668 is available in a RoHS compliant, “green” halogen free 8-pin SOIC package.

Merkmale

  • Dual Channel Step-Down Regulators
  • Guanranteed 1A/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
  • Low as o.6V Adjustable Output Voltage
  • Internal Compensation Network
  • 15µA Quiescent Current
  • Over Temperature & UVLO Protections
  • RoHS Compliant "Green"/Halogen Free 8-Pin SOIC Package

Artikel

  Artikel Nr. SPEC Produktserie L
(µH)
L1
(µH)
IR
(A)
IR 1
(A)
ISAT
(A)
ISAT 1
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
RDC1 typ
(mΩ)
RDC1 max.
(mΩ)
fres
(MHz)
fres 1
(MHz)
Muster
7440430022 PDF WE-TPC SMT-Speicherdrossel 2.2 2.2 2.5 2.5 2.35 2.35 27 28 27 28 100 100