ACT8796
Rev1, 10-Oct-08
STEP-DOWN DC/DC CONVERTERS
TYPICAL PERFORMANCE CHARACTERISTICS
(ACT8796QLCIA, VVP1 = VVP2 = VVP3 = 3.6V, L = 3.3µH, CVP1 = CVP2 = CVP3 = 2.2µF, COUT1 = COUT2 = COUT3 = 10µF, TA = 25°C, unless
otherwise specified.)
REG1 Efficiency vs. Load Current
REG2 Efficiency vs. Load Current
100
100
VOUT2 = 2.8V
VOUT1 = 1.2V
3.6V
95
90
85
80
75
70
95
90
85
80
75
70
4.2V
4.2V
3.6V
65
60
65
60
1
1000
1
10
100
1000
10
100
Output Current (mA)
Output Current (mA)
OUT1 Regulation Voltage
OUT2 Regulation Voltage
0.545
0.363
0.181
0.545
0.363
IOUT1 = 35mA
IOUT2 = 35mA
0.181
0.000
-0.181
0.000
-0.181
-0.363
-0.545
-0.363
-0.545
-40
-20
0
20
40
60
85
-40
-20
0
20
40
60
85
Temperature (°C)
Temperature (°C)
REG2 MOSFET Resistance
REG1 MOSFET Resistance
500
400
300
200
100
0
500
400
300
PMOS
NMOS
PMOS
NMOS
200
100
0
5.5
3
3.5
4.0
4.5
5.0
3
3.5
4.0
4.5
5.0
5.5
VP2 Voltage (V)
VP1 Voltage (V)
Innovative PowerTM
- 21 -
www.active-semi.com
ActivePMUTM is a trademark of Active-Semi.
Copyright © 2008 Active-Semi, Inc.
I2CTM is a trademark of Philips Electronics.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
