Ultra Low ON-Resistance, Low Voltage, Single
Supply, Single SPST Analog Switches
ISL54051, ISL54052
Features
• ON-resistance (r
)
The Intersil ISL54051 and ISL54052 devices are low
ON-resistance, low voltage, bidirectional, single
pole/single throw (SPST) analog switches designed to
operate from a single +1.8V to +5.5V supply. Targeted
applications include battery powered equipment, which
ON
- V
- V
- V
= +5.0V. . . . . . . . . . . . . . . . . . . . . 0.8Ω
= +3.0V. . . . . . . . . . . . . . . . . . . . . 1.1Ω
= +1.8V. . . . . . . . . . . . . . . . . . . . . 2.3Ω
CC
CC
CC
benefit from low r
resistance (0.8Ω), excellent r
• r flatness (+4.5V supply) . . . . . . . . . . . . 0.25Ω
ON
• Single supply operation . . . . . . . . +1.8V to +5.5V
• Fast switching action (+4.5V supply)
ON
ON
flatness, and fast switching speeds (t
= 24ns,
= 10ns). The digital logic input is 1.8V logic
ON
t
OFF
compatible when using a single +3.0V supply.
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . 24ns
. . . . . . . . . . . . . . . . . . . . . . . . . . . 10ns
ON
Cell phones, for example, often face ASIC functionality
limitations. The number of analog input or GPIO pins
may be limited and digital geometries are not well suited
to analog switch performance. This family of parts may
be used to switch in additional functionality while
reducing ASIC design risk. The ISL54051 and the
ISL54052 are offered in a 6 Ld 1.2mmx1.0mmx0.5mm
µTDFN package and a 6 Ld SOT-23 package, alleviating
board space limitations.
OFF
• ESD HBM rating. . . . . . . . . . . . . . . . . . . . . . >6kV
• 1.8V, CMOS logic compatible (+3V supply)
• Available in 6 Ld µTDFN and 6Ld SOT-23 Packages
• Pb-free (RoHS compliant)
Applications
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
The ISL54051 has one normally open (NO) switch and
ISL54052 has one normally closed (NC) switch.
- Pagers
- Laptops, notebooks, palmtops
TABLE 1. FEATURES AT A GLANCE
ISL54051
1
ISL54052
1
• Portable test and measurement
• Medical equipment
Number of Switches
SW
NO
NC
• Audio and video switching
1.8V r
ON
2.3Ω
2.3Ω
Related Literature
1.8V t
/t
ON OFF
68ns/45ns
1.1Ω
68ns/45ns
1.1Ω
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
3V r
ON
3V t
/t
ON OFF
29ns/12ns
0.8Ω
29ns/12ns
0.8Ω
5V r
ON
5V t
/t
24ns/10ns
24ns/10ns
ON OFF
Packages
6 Ld µTDFN, 6Ld SOT-23
October 19, 2009
FN6459.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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1
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