ZXSC100 Zetex Semiconductors plc., ZXSC100 Datasheet - Page 15

• Manufacturer Part Number: ZXSC100
• Description: Single Cell Dc-dc Converter Solution
• Manufacturer: Zetex Semiconductors plc.

ISSUE 3 - JANUARY 2004
Shown in Figure 5. is the discontinuous inductor
current. The ramp-up current stores energy in the
inductor. The switching transistor,Q1, is on during this
time and has an equivalent current ramp-up, shown in
Figure 6. The ramp-down current is associated with
the energy being delivered to the output via the
Schottky diode, D1. The diode current is equivalent to
this ramp-down current and is shown in figure 7.
Figure 5.
Inductor current (200mA/div)
Figure 6.
Transistor current (200mA/div)
15
Figure 7.
Diode current (200mA/div)
S E M I C O N D U C T O R S
ZXSC100