Datasheet

FB
SW
L1
R1
LM34914
R2
R3
C2
V
OUT
LM34914
www.ti.com SNVS453B –MAY 2006–REVISED MARCH 2013
c) Alternate minimum ripple configuration: The circuit in Figure 13 is the same as that in the Block Diagram,
except the output voltage is taken from the junction of R3 and C2. The ripple at V
OUT
is determined by the
inductor’s ripple current and C2’s characteristics. However, R3 slightly degrades the load regulation. This circuit
may be suitable if the load current is fairly constant.
Figure 13. Alternate Minimum Output Ripple
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