STEVAL-ISV009V1 STMicroelectronics, STEVAL-ISV009V1 Datasheet - Page 9

• Manufacturer Part Number: STEVAL-ISV009V1
• Description: Power Management Modules & Development Tools DUAL STG DC/AC CNVRT DEMO BRD
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of STEVAL-ISV009V1

• Design Resources: STEVAL-ISV009V1 BOM STEVAL-ISV009V1 Schematic
• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 36V
• Current - Output: -
• Voltage - Input: -
• Regulator Topology: Boost
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: SPV1020
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AN3392
2
Application information
A step-up (or boost) converter is a switching DC-DC converter able to generate an output
voltage higher than (or at least equal to) the input voltage.
Figure 5.
The switching element (Sw) is typically driven by a fixed frequency squared waveform
generated by a PWM controller.
When Sw is closed (T
depending on the voltage across the inductor and its inductance value. During this time the
output voltage is sustained by C
output to input stages.
When Sw is open (T
voltage on node “A” is higher than output voltage. During this phase the current in the
inductor decreases while the output voltage increases.
Following figure shows the behavior of the current on the inductor.
Figure 6.
Comparing the energy stored in the inductor during T
the relation between V
Step-up converter single ended architecture
Step-up converter in continuous mode
off
on
) the current in the inductor is forced flowing toward the output until
out
) the inductor stores energy and its current increases with a slope
and V
Doc ID XXXXX Rev 1
in
out
is:
and the diode doesn’t allow any charge transfer from
on
and the energy released during T
Application information
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off
,