EN5322QI
RPOK*
100k
POK
ENABLE
VIN
VOUT
COUT
VSENSE
VOUT
PVIN
VS0
CIN
EN5322POK
VS1
VS2
10 uF
47 uF
PGND
PGND
AVIN
AGND
1 uF
* Leave RPOK 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, VIN = 5 V, VOUT = 1.2 V and TA = 25°C, unless otherwise noted.
Efficiency vs. Load Current (Vin = 5.0V)
Efficiency vs. Load Current (Vin = 3.3V)
95
90
85
80
75
70
65
60
55
50
95
90
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
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: VOUT = 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V,
0.8 V
Top to Bottom: VOUT = 2.5 V, 1.8 V, 1.5 V, 1.2 V, 0.8 V
©Enpirion 2008 all rights reserved, E&OE
6
www.enpirion.com
03454
4/24/2009
Rev:A
ENPIRION [ ENPIRION, INC. ]
