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MIC5332_08 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Micro-Power High Performance Dual 300mA ULDO™ | |||
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MIC5332
Micro-Power High Performance
Dual 300mA ULDOâ¢
General Description
The MIC5332 is a tiny dual low quiescent current LDO
ideal for applications that are power sensitive. The
MIC5332 integrates two high performance 300mA LDOs,
and a POR generator into a 2mm x 2mm Thin MLF®
package. This solution occupies the same PC board area
of a single SOT-23 package.
The MIC5332 is designed to reject input noise and provide
low output noise with fast transient response so as to
respond to any load change quickly even though it is a low
quiescent current part. This combination of PSRR, low
noise and transient response, along with low power
consumption makes for a very high performance, yet
general purpose product.
The MIC5332 is a µCap design, operating with very small
ceramic output capacitors, which reduces required board
space and component cost. It is available in fixed output
voltages in a tiny 8-pin 2mm x 2mm Thin MLF® leadless
package.
Data sheets and support documentation can be found on
Micrelâs web site at: www.micrel.com.
Features
⢠2.3V to 5.5V input voltage range
⢠300mA output current per LDO
⢠Very low quiescent current: 25µA per LDO
⢠POR output with programmable delay on LDO2
⢠High PSRR - >65dB on each LDO
⢠Stable with 1µF ceramic output capacitors
⢠Tiny 8-pin 2mm x 2mm Thin MLF® package
⢠Ultra-low dropout voltage â 120mV @ 300mA
⢠Low output voltage noise â 50µVrms
⢠Thermal shutdown protection
⢠Current limit protection
Applications
⢠Camera phones
⢠Mobile phones
⢠PDAs
⢠GPS receivers
⢠Portable devices
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Typical Application
VBAT
CIN
1µF
MIC5332-xxYMT
VIN
VOUT1
EN1
VOUT2
EN2
CSET2 POR2
GND
10k
VI/O
VCORE
/RST
1µF 1µF
µProcessor
Camera DSP Power Supply Circuit
ULDO is a trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
April 2008
M9999-042108-B
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