SP6669_12 Datasheet, PDF (4/11 Pages) Exar Corporation – 600mA 1.5MHz Synchronous Step Down Converter

SP6 6 6 9
6 0 0 m A 1 .5 M H z Sy n ch r o n o u s St e p Do w n Co n v e r t e r
PIN DESCRIPTION
Name
Pin Number
EN
1
GND
2
SW
3
VIN
4
VFB
5
VOUT
Description
Enable Pin. Do not leave the pin floating.
VEN<0.4V: Shutdown mode
VEN>1.2V: Device enabled
Ground Signal
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.
ORDERING INFORMATION
Part Number
SP6669AEK - L/TRR3
Temperature
Range
Marking
- ƒ&A””7ƒ& QBWW
Package
SOT23 - 5
Packing
Quantity
3K/Tape & Reel
Note 1
Halogen Free
SP6669BEK - L/TRR3 - ƒ&_A””7ƒ& RBWW
SOT23 - 5 3K/Tape & Reel Halogen Free
SP6669CEK - L/TRR3 - ƒ&_A””7ƒ& SBWW
SOT23 - 5 3K/Tape & Reel Halogen Free
SP6669DEK - L/TRR3
SP6669EB
- ƒ&A””7ƒ& TBWW
SP6669 Evaluation Board
SOT23 - 5 3K/Tape & Reel
³<<´ ±<³H:D:U´ :RUN±³:;H´HN/RW; w1heXnPapEpHlicaUble.
Halogen Free
Note 2
Adjustable
output voltage
1.2V fixed output
voltage
1.5V fixed output
voltage
1.8V fixed output
voltage
Note that the SP6669 series is packaged in Tape and Reel with a reverse part orientation as per the
following diagram
© 2012 Exar Corporation
4/ 11
Rev. 2. 2.0