FSA5157_07 Datasheet, PDF (1/14 Pages) Fairchild Semiconductor – 0.4Ω Low Voltage SPDT Analog Switch

FSA5157
0.4Ω Low Voltage SPDT Analog Switch
January 2007
General Description
The FSA5157 is a low ON Resistance, low power Single
Pole Double Throw (SPDT) analog switch. This product
has been designed for switching audio signals in applica-
tions such as cell phones and portable media players.
The ultra-low 0.4¾ impedance, sub 1μA current con-
sumption, and 1.65V to 4.3V operating voltage range
makes this product ideal for battery powered applica-
tions. The FSA5157 also features bi-directional opera-
tion and make-before-break functionality. This device is
fully specified for operation at 1.8V, 2.5V and 3.3V.
A growing number of applications require the voltage
applied to the select input to be lower then the V_CC
applied. Under this condition, most switches would typi-
cally consume over 100μA of current. This would be an
unacceptable level for battery powered applications. The
FSA5157 has been designed to minimize current con-
sumption under this condition. The I_CCT is specified for
<12μA under a worse case condition of V_CC = 4.3V and
V_IN = 1.8V.
Features
■ Typical 0.4Ω On Resistance (R_ON) for +2.7V supply
■ FSA5157 features less than 12μA I_CCT current
when S input is lower than V_CC
■ 0.25Ω maximum R_ON flatness for +2.7V supply
■ 1.0mm x 1.45mm 6-Lead Pb-Free MicroPak™
package
■ Broad V_CC operating range: 1.65V to 4.3V
■ Low THD (0.02% typical for 32Ω load)
■ High current handling capability
(350mA continuous current under 3.3V supply)
■ Control logic is 1.8V CMOS logic compatible
Applications
■ Cellular phone
■ PDA
■ Portable Media Player
Ordering Information
Order
Number
Package Product Code
Number
Top Mark
Package Description
FSA5157P6X MAA06A
FSA5157L6X MAC06A
C57
Pb-Free 6-Lead SC70, EIAJ SC88,
1.25mm Wide
FT
Pb-Free 6-Lead MicroPak, 1.0mm
Wide
Pb-Free package per JEDEC J-STD-020B.
Supplied As
3K Units on Tape and Reel
5K Units on Tape and Reel
Applications Diagram
V_CC
Headphone
Audio
Amplifier
Internal
S
Speaker
MicroPak™ is a trademark of Fairchild Semiconductor Corporation.
©2006 Fairchild Semiconductor Corporation
FSA5157 Rev. 1.0.1
www.fairchildsemi.com