EN5322QI
R
POK
*
V
IN
C
IN
10 uF
ENABLE
PVIN
VS0
VS1
100k
VSENSE
VOUT
POK
V
OUT
C
OUT
47 uF
EN5322
POK
PGND
AGND
VS2
PGND
AVIN
1 uF
* Leave R
POK
open if the POK function is not used.
Figure 4. Typical Application Circuit with VID Codes.
(NOTE: Enable can be separated from PVIN if the application requires it)
Typical Performance Characteristics
Circuit of Figure 4, V
IN
= 5 V, V
OUT
= 1.2 V and T
A
= 25°C, unless otherwise noted.
Efficiency vs. Load Current (Vin = 5.0V)
95
90
Efficiency vs. Load Current (Vin = 3.3V)
95
90
Efficiency (%)
80
75
70
65
60
55
50
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Efficiency (%)
85
85
80
75
70
65
60
55
50
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Load Current (A)
Load Current (A)
Top to Bottom: V
OUT
= 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V,
0.8 V
Top to Bottom: V
OUT
= 2.5 V, 1.8 V, 1.5 V, 1.2 V, 0.8 V
©Enpirion
2008 all rights reserved, E&OE
03454
6
4/24/2009
www.enpirion.com
Rev:A
ENPIRION [ ENPIRION, INC. ]
