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PDF ACT8332 Data sheet ( Hoja de datos )
| Número de pieza | ACT8332 | |
| Descripción | Three Channel Integrated Power Management IC | |
| Fabricantes | Active-Semi | |
| Logotipo |  |
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ACT8332
Rev0, 14-Mar-08
Three Channel Integrated Power Management IC
for Handheld Portable Equipment
FEATURES
• Multiple Patents Pending
• Three Integrated Regulators
− 350mA PWM Step-Down DC/DC
− 360mA Low Noise LDO
− 360mA Low Noise LDO
• Independent Enable/Disable Control
• Minimal External Components
• 3×3mm, Thin-DFN (TDFN33-10) Package
− Only 0.75mm Height
− RoHS Compliant
APPLICATIONS
• Portable Devices and PDAs
• MP3/MP4 Players
• Wireless Handhelds
• GPS Receivers, etc.
GENERAL DESCRIPTION
The patent-pending ACT8332 is a complete, cost
effective, highly-efficient ActivePMUTM power man-
agement solution that is ideal for a wide range of
portable handheld equipment. This device inte-
grates one PWM step-down DC/DC converter and
two low noise, low dropout linear regulators (LDOs)
in a single, thin, space-saving package. This device
is ideal for a wide range of portable handheld
equipment that can benefit from the advantages of
ActivePMU technology but does not require a high
level of integration.
REG1 is a fixed-frequency, current-mode PWM
step-down DC/DC converter that is optimized for
high efficiency and is capable of supplying up to
350mA output current. REG1’s output is available in
a variety of factory-preset output voltage options,
and an adjustable output voltage mode is also avail-
able. REG2, REG3 are low noise, high PSRR linear
regulators that are capable of supplying up to
360mA, and 360mA, respectively.
The ACT8332 is available in a tiny 3mm × 3mm
10-pin Thin-DFN package that is just 0.75mm thin.
www.DaStaSYheSetT4UE.cMom BLOCK DIAGRAM
Battery
ON1
ON3
System
Control
ACT8332
PMUActive
TM
REG1
Step-Down
DC/DC
REG2
LDO
REG3
LDO
OUT1
Adjustable, or
1.2V to 3.3V
Up to 350mA
OUT2
1.4V to 3.7V
Up to 360mA
OUT3
1.4V to 3.7V
Up to 360mA
Pb
Pb-free
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
-1-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
1 page  
ACT8332
Rev0, 14-Mar-08
ABSOLUTE MAXIMUM RATINGSc
PARAMETER
SW1 to GP1,
INL, VP1, FB1, OUT2, OUT3, ON1, ON3 to GA
SW1 to VP1
GP1 to GA
Junction to Ambient Thermal Resistance (θJA)
Operating Temperature Range
Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
VALUE
-0.3 to +6
-6 to +0.3
-0.3 to +0.3
33
-40 to 85
125
-55 to 150
300
UNIT
V
V
V
°C/W
°C
°C
°C
°C
c: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.
www.DataSheet4U.com
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
-5-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
5 Page 
ACT8332
Rev0, 14-Mar-08
LOW-DROPOUT LINEAR REGULATORS
TYPICAL PERFORMANCE CHARACTERISTICS
(ACT8332NDAQB, VINL = 5V, TA = 25°C, unless otherwise specified.)
Load Regulation
0.5
0.4
0.3
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
0 25 50 75 100 125 150 175 200 225 250 300 360
Load Current (mA)
Dropout Voltage vs. Output Current
225
200
175
150 REG2, REG3
125
100
75
50
25
0
0
50 100 150 200 250
Output Current (mA)
3.1V
3.3V
3.6V
300 360
Output Voltage Deviation vs. Temperature
0.5 ILOAD = 0mA
0.4
0.3
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
www.DataSheet4U.co-4m0
-15 10 35 60
Temperature (°C)
85
LDO Output Voltage Noise
CH1
CH1: VOUTx, 200µV/div (AC COUPLED)
TIME: 200ms/div
Region of Stable COUT ESR vs. Output Current
1
0.1
Stable ESR
0.01
0
50 100 150 200 250 300 360
Output Current (mA)
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
- 11 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ACT8332.PDF ] | |
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