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XF45061 fiches techniques PDF

XySemi - 600mA 4MHz Synchronous Step-Down DC/DC Converter

Numéro de référence XF45061
Description 600mA 4MHz Synchronous Step-Down DC/DC Converter
Fabricant XySemi 
Logo XySemi 





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XF45061 fiche technique
XF45061
____________________________________________________________________________________________________________________________
600mA 4MHz Synchronous Step-Down DC/DC Converter
GENERAL DESCRIPTION
The XF45061 is a current mode
synchronous step-down converter with
fixed operating frequency. The supply
current is only 130uA at operating and less
than 1uA at shutdown. This device is the
ideally solution for Li-Ion battery powered
system applications and small size board
applications.
This device has internal switch, no
external diode. It has internal fixed 4MHz
frequency and makes application circuit
smaller.
The XF45061 is available in an adjustable
output voltage version. The adjustable
version has wide output range from 0.6V to
VIN. The XF45061 is available in a low
profile (1mm) tiny SOT23-5 package.
FEATURES
600mA Output Current
High Efficiency up to 92%
2.5V to 5.5 V Input Range
Adjustable Output Voltage from 0.6V to
VIN
Low Quiescent Current 130uA
No Schottky Diode Required
4MHz Constant Frequency Operation
Low Dropout Operation: 100% Duty
Cycle
Current Mode Operation for Excellent
Line and Load Transient Response
Operating Temperature: -40oC to +85°C
Available in tiny SOT23-5 Package
APPLICATIONS
Cell PhonesSmart Phones
3G RF PA
WLANGPS and Bluetooth Applications
DTV Tuner Applications
Note Books,Ultra-Mobile PCs
XySemi Inc
Figure 1. Typical Application Circuit
- 1 - www.xysemi.com
Rev0.1

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