LTC1929 LINER [Linear Technology], LTC1929 Datasheet - Page 21

• Manufacturer Part Number: LTC1929
• Description: 2-Phase, High Efficiency, Synchronous Step-Down Switching Regulator
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
R
IN
V
IN
C
IN
BOLD LINES INDICATE
HIGH, SWITCHING
CURRENT LINES.
KEEP LINES TO A
MINIMUM LENGTH.
+
U
Figure 9. Instantaneous Current Path Flow in a Multiple Phase Switching Regulator
U
SW V
I
COUT
I
CIN
W
Figure 10. Single and 2-Phase Current Waveforms
SINGLE PHASE
SW1
SW2
D1
D2
U
SW1 V
SW2 V
L1
L2
I
COUT
I
CIN
I
I
L1
L2
R
R
SENSE1
SENSE2
DUAL PHASE
RIPPLE
1929 F10
+
C
V
OUT
OUT
LTC1929
1929 F09
R
21
L