MIC5380/1
High Performance Dual 150mA LDO
1mm x 1mm Thin MLF
®
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
November 2008
M9999-110608-A
General Description
The MIC5380/1 is an advanced dual LDO ideal for
powering space constrained portable devices. The
MIC5380/1 provides two independently controlled, high
performance 150mA LDOs in an ultra small 1mm x 1mm
Thin MLF
®
package.
Ideal for battery powered applications, the MIC5380/1
offers ±1% typical accuracy, low dropout voltage (155mV
at 150mA) and low ground current. The MIC5380/1 can
also be put into a zero-off-mode current state, drawing
virtually no current when disabled.
The MIC5380/1 offers fast transient response and high
PSRR while consuming minimal operating current. When
the MIC5381 is disabled an internal resistive load is
automatically applied to the output to discharge the output
capacitor.
The MIC5380/1 is available with fixed output voltages in a
lead-free (RoHS compliant) 6-pin 1mm x 1mm Thin MLF
®
package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• 6-pin 1mm x 1mm Thin MLF
®
package
• 2.5V to 5.5V input voltage range
• 150mA output current per LDO
• High output accuracy ±1% typical
• Low quiescent current 32µA per LDO
• Stable with 0402 1µF ceramic output capacitors
• Low dropout voltage 155mV at 150mA
• Output discharge circuit on MIC5381
• Independent enable pins
• Thermal shutdown protection
• Current limit protection
Applications
• Bluetooth headsets
• Mobile phones
• GPS, PMP, PDAs , DSCs
• USB thumb drive
• Medical handheld
• Portable handheld electronics
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Typical Application
MIC5380/1-xxYFT
VIN
EN1
EN2
1µF
1µF
VOUT1
VOUT2
1µF
VBAT
GND
I/O
VCORE
Camera DSP Power Supply Circuit
