FSA2156_07 Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Low-Voltage SPST 0.4Ω Analog Switch

August 2007
FSA2156 — Low-Voltage SPST 0.4Ω Analog Switch
Features
ƒ Maximum 0.7Ω On Resistance (RON) for +2.7V
Supply
ƒ 0.25Ω Maximum RON Flatness for +2.7V Supply
ƒ Space-Saving MicroPak™ and SC70 Packaging
ƒ Broad VCC Operating Range: 1.65 to 4.3V
ƒ Fast Turn-on and Turn-off Times
ƒ Over-Voltage Tolerant TTL-Compatible Control Input
ƒ Suitable for 2 UL USB2.0 Applications (200mA)
ƒ Low ICCT Current Over Expanded Control Input Range
Description
The FSA2156 is a high-performance Single-Pole
Single-Throw (SPST) analog switch that features ultra
low RON of 0.4Ω (typ.) at 2.7V VCC. The FSA2156
operates over the wide VCC range of 1.65V to 4.3V and
is fabricated with sub-micron CMOS technology to
achieve fast switching speeds. The select input is TTL-
level compatible.
FSA2156 features very low quiescent current even
when the control voltage is lower than the VCC supply.
This feature facilitates longer battery life in mobile
handset applications and allows for the direct interface
with baseband-processor, general-purpose I/Os.
Ordering Information
Part Number Top Mark Pb-Free
Package Description
FSA2156P6
2156
6-lead SC70, EIAJ SC88, 1.25mm Wide
Packing Method
250 Units on Tape and Reel
FSA2156P6X
2156
6-lead SC70, EIAJ SC88, 1.25mm Wide 3000 Units on Tape and Reel
FSA2156L6X
FY
Pb-free package per JEDEC J-STD-020B.
Analog Symbol
6-lead MicroPak™, 1.0mm Wide
5000 Units on Tape and Reel
A1
6 VCC
VCC ₁
6A
GND 2
5 NC
NC 2
5^B
B3
4 Sel
Figure 1. SC70 Pin Assignments (Top View)
Sel 3
4 GND
Figure 2. MicroPak™ Pin Assignments (Top View)
Truth Table
Control Input (S)
L (LOW Logic Level)
H (HIGH Logic Level)
Function
Switch Open (OFF)
Switch Closed (ON)
Name
A, B
Sel
Pin Descriptions
Function
Switch I/O Data Ports
Control Input
© 2006 Fairchild Semiconductor Corporation
FSA2156 Rev. 1.0.3
www.fairchildsemi.com