STEVAL-ISA053V2 Datasheet, PDF (1/4 Pages) STMicroelectronics – Independent power good signals

STEVAL-ISA053V2
Demonstration board for the PM6680A dual synchronous
step-down controller with adjustable output voltages plus LDO
Data Brief
Features
■ Constant on-time control allows very fast load
transients
■ 6 V to 36 V input voltage range
■ 5 V auxiliary output voltage
■ Adjustable switching outputs
■ Lossless current sensing
■ Negative current limit
■ Soft-start internally fixed at 2.8 ms
■ Soft-end for output discharge
■ 200 kHz / 300 kHz, 300 kHz / 400 kHz, 400 kHz
/ 500 kHz (OUT1 / OUT2 selectable switching
frequency)
■ Selectable pulse skip and no-audible skip
modes at light loads
■ Independent power good signals
STEVAL-ISA053V2
Description
The PM6680A is a dual step-down controller with
adjustable output voltages. This demonstration
board is designed to test the performance of the
PM6680A by employing a typical application
circuit which allows testing of all the PM6680A
device functions. The kit features two switching
sections, with (typically) 3.3 V and 1.8 V outputs,
from a 6 V to 36 V input voltage.
The typical operating switching frequency of the
two switching sections is 200 kHz / 300 kHz,
respectively. Each switching section delivers more
than 2.5 A of output current.
Moreover, an internal linear regulator can provide
5 V @ 100 mA peak current.
June 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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