SP6669 Datasheet, PDF (2/10 Pages) Exar Corporation – 1.5MHZ, 600mA SYNCHRONOUS STEP DOWN CONVERTER

BLOCK DIAGRAM
SOT23-5L
Fig.1: SP6669 Block Diagram
PIN DESCRIPTION
Pin Number
1
2
3
4
5
Name
EN
GND
SW
VIN
VFB
VOUT
Description
Enable Pin. Do not leave the pin floating.
V_EN<0.4V: Shutdown mode
V_EN>1.2V: Device enabled
Ground Signal Pin.
Switching node.
Power Supply Pin.
Must be decoupled to ground with a 4.7µF or greater ceramic capacitor.
Adjustable Version Feedback Input Pin.
Connect VFB to the center point of the resistor divider.
Fixed Output Voltage Version, Output Voltage Pin.
An internal resistive divider divides the output voltage down for comparison
to the internal reference voltage.
Rev G – 12/02/2008
SP6669 1.5MHz 0.6A Sync. Step Down Converter © 2008 Exar Corporation
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