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STEVAL-ISA053V1
PM6680 evaluation kit - No Rsense dual step-down controller with adjustable voltages for notebook system power supplies

 
 Features and Description  Technical Documentation  Resources
 Key Products  Related Information
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Features and Description
Constant on-time control allows very fast load transients
6 V to 28 V input voltage range
5 V auxiliary output voltage
Accurate current limit with sense resistor
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 (5 V/3 V selectable switching frequency)
Selectable pulse skip and no-audible skip modes at light loads
Independent power-good signals

Click for larger imageThe PM6680 is a dual step-down controller with adjustable output voltages for notebook computer power systems. The STEVAL-ISA053V1 evaluation kit is designed to test the performance of the PM6680 by employing a typical application circuit that tests all PM6680 device functions.
The kit features two switching sections, with (typically) 1.5 V and 1.05 V outputs, from a 6 V to 28 V input battery voltage. The operating switching frequency of the two switching sections is 200 kHz and 300 kHz, respectively. Each switching section delivers more than 5 A output current. Moreover, an internal linear regulator provides 5 V @ 100 mA peak current.

Technical Documentation
Application Note Download
Resources
Gerber Files Download (07-April-2008, 615 KB)
Schematics Download (01-February-2008, 43 KB)
Bill of material Download (28-May-2008, 14 KB)
Key Products
BAT54A 
STPS1L30M 
PM6680 
STS12NH3LL 
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Purchase STEVAL-ISA053V1