TC1142 Datasheet, PDF (5/12 Pages) Microchip Technology – Inductorless -2x Boost/Buck Regulator

FIGURE 3-2:
TC1142 PHASE 1
(a)
C1+
TC1142
V_IN
C1–
C2+
V_IN
C2–
V_OUT
+ ^COUT
(b)
V_IN
C2+
C1–
C2–
C1+
(a) Switch positions during phase 1.
(b) The equivalent circuit of the charging phase of operation.
C1+
+ ^COUT
V_OUT
FIGURE 3-3:
TC1142 PHASE 2
(a)
C1+
V_IN
C1–
C2+
V_IN
C2–
(b)
V_IN
C1+
C2–
C2+
C1–
V_OUT
+ ^COUT
(a) Switch positions during phase 2.
(b) The equivalent circuit of the discharging phase of operation.
V_OUT
+ ^COUT
 2002 Microchip Technology Inc.
DS21360B-page 5