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Numéro de référence | ACT8332 | ||
Description | Three Channel Integrated Power Management IC | ||
Fabricant | Active-Semi | ||
Logo | |||
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.
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Pages | Pages 13 | ||
Télécharger | [ ACT8332 ] |
No | Description détaillée | Fabricant |
ACT8332 | Three Channel Integrated Power Management IC | Active-Semi |
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