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ACT8325 Datasheet(PDF) 8 Page - Active-Semi, Inc

No. de pieza ACT8325
Descripción Electrónicos  Dual PWM Step-Down DC/DCs in TDFN33
PDF  11 Pages
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Fabricante Electrónico  ACTIVE-SEMI [Active-Semi, Inc]
Página de inicio  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8325 Datasheet(HTML) 8 Page - Active-Semi, Inc

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ACT8325
Rev 2, 25-May-11
STEP-DOWN DC/DC CONVERTER
Active-Semi
Innovative Power
TM
- 8 -
www.active-semi.com
Copyright © 2011 Active-Semi, Inc.
ActivePMU
TM is a trademark of Active-Semi.
TYPICAL PERFORMANCE CHARACTERISTICS
(ACT8325NDAAA, VVP1 = VVP2 = 3.6V, L = 3.3µH, CVP1 = CVP2 = 2.2μF, COUT1 = COUT2 = 10μF, TA = 25°C, unless otherwise specified.)
REG1 Efficiency vs. Load Current
50
1000
Output Current (mA)
95
80
70
60
1
10
100
VOUT1 = 1.2V
VIN = 4.2V
85
75
65
55
VP2 Voltage (V)
440
5.5
REG2 MOSFET Resistance
360
280
200
120
40
5.0
4.5
4.0
3.5
3.0
2.5
REG1 MOSFET Resistance
VP1 Voltage (V)
600
0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
500
400
300
200
100
PMOS
NMOS
PMOS
NMOS
90
VIN = 3.6V
REG2 Efficiency vs. Load Current
100
50
Output Current (mA)
90
80
70
60
1
10
100
VOUT2 = 3.3V
OUT1 Regulation Voltage
0.67
-0.67
Temperature (°C)
-20
-40
0
20
40
60
0.44
0.22
0.00
-0.22
-0.44
IOUT1 = 35mA
85
OUT2 Regulation Voltage
0.55
-0.55
Temperature (°C)
-20
-40
0
20
40
60
0.36
0.18
0.00
-0.18
-0.36
85
IOUT2 = 35mA
-0.11
-0.33
-0.56
0.11
0.33
0.56
0.45
0.27
0.09
-0.09
-0.27
-0.45
0
1000
VIN = 3.6V
VIN = 4.2V



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