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RC5054A
PRODUCT SPECIFICATION
6
P
Table 1. Output Voltage Table
Note:
1. 0 = connected to GND or V
SS
, 1 = OPEN
PIN NAME
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
NOMINAL
OUTPUT
VOLTAGE
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
PIN NAME
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
NOMINAL
OUTPUT
VOLTAGE
SHDN
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
VID4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
VID4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Typical Application
Applications Discussion
Layout Considerations
As in any high frequency switching converter, layout is very
important. Switching current from one power device to
another can generate voltage transients across the imped-
ances of the interconnecting bond wires and circuit traces.
These interconnecting impedances should be minimized by
using wide, short printed circuit traces. The critical compo-
nents should be located as close together as possible, using
ground plane construction or single point grounding.
Figure 3 shows the critical power components of the con-
verter. To minimize the voltage overshoot the interconnect-
ing wires indicated by heavy lines should be part of ground
or power plane in a printed circuit board. The components
+12V
+V
OUT
PGND
RC5054
VSEN
RT
FB
COMP
VID0
VID1
VID2
VID3
VID4
SS
PGOOD
D/A
GND
OSC
LGATE
UGATE
OCSET
PHASE
BOOT
EN
VCC
V
IN
= +5V or +12V
OVP
MONITOR AND
PROTECTION
+
-
+
-