ACT8332
Rev1, 24-May-10
STEP-DOWN DC/DC CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
(ACT8332NDAQB, VVP1 = 3.6V, L = 3.3µH, CVP1 = 2.2μF, COUT1 = 10μF, TA = 25°C, unless otherwise specified.)
REG1 Efficiency vs. Load Current
REG1 Transient Peak Inductor Current
100
650
630
VOUT1 = 1.8V
3.2V
90
80
70
60
50
3.6V
4.2V
610
590
570
550
0.1
3.0
3.5
4.0
4.5
5.0
5.5
1
10
100
1000
Output Current (mA)
VP1 Voltage (V)
REG1 MOSFET Resistance
REG1 Load Regulation
600
500
400
0.2
0.0
-0.2
-0.4
-0.6
-0.8
PMOS
NMOS
3.6V
4.2V
300
200
100
0
-1.0
0
400
50
100
150
200
250
300
350
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Output Current (mA)
VP1 Voltage (V)
OUT1 Regulation Voltage
1.812
IOUT1 = 35mA
1.808
1.804
1.800
1.796
1.792
1.788
-40
-20
0
20
40
60
85
Temperature (°C)
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
- 7 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
