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Buck
and Boost Switching Regulator-Controller
The S-8460
is a high-efficiency, PWM buck and boost switching regulator-controller
that requires only one coil instead of two. This allows for a reduction
in external components and board space while the high efficiency of
the S-8460 will help prolong battery life. It also includes an automatic-selection
control circuit, a reference voltage source, an oscillation circuit
and an error amplifier. Applications for the S-8460 include single-cell
Lithium-Ion devices such as PDAs, cell phones, notebook PCs and power
supply modules that require a battery and AC adapter.

Features of the
S-8460 include a variable output voltage (2.5 to 6.0 V), a wide input
voltage range (2.2 to 18.0 V), an oscillation frequency of 300 kHz
and an automatic recovery overload protection circuit. The S-8460
comes in a 16-pin TSSOP package.
The datasheet
for the S-8460 can be found at:
www.seiko-usa-ecd.com/intcir/products/power/s8460.html.
Pricing for the
S-8460 begins at $1.75 in quantities of 10k and is available
now through a national network of authorized distributors, including
All American, Mouser and Future Electronics.
Seiko Instruments
USA Inc.
(800) 934-9334
Fax: (909) 975-5699
www.seiko-usa-ecd.com
03-02
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Posted with permission.
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