MIC5388 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Dual 200mA Peak LDO in Wafer Level Chip Scale Package

MIC5388/9
Dual 200mA Peak LDO
in Wafer Level Chip Scale Package
General Description
The MIC5388/9 is an advanced dual LDO ideal for
powering general purpose portable devices. The
MIC5388/9 provides two independently-controlled, high-
performance, 200mA peak (150mA continuous) LDOs in a
miniature 6-bump, 0.5mm pitch, 1.5mm × 1.0mm wafer
level chip scale package (WLCSP).
Ideal for battery-powered applications, the MIC5388/9
offers 2% accuracy, low dropout voltage (175mV @
150mA) and low ground current (typically 32μA per LDO).
The MIC5388/9 can also be put into a zero off mode
current state, drawing virtually no current when disabled.
When the MIC5389 is disabled an internal resistive load is
automatically applied to the output to discharge the output
capacitor. This LDO offers fast transient response and
high PSRR while consuming a minimum operating current.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• 2.5V to 5.5V input voltage range
• Two 200mA peak output current LDOs
• High output accuracy (±2%)
• Low quiescent current (32µA per LDO)
• Stable with 1µF ceramic output capacitors
• Low dropout voltage (175mV at 150mA)
• Independent enable pins
• Output discharge circuit (MIC5389)
• Thermal-shutdown protection
• Current-limit protection
• 6-bump 1.5mm × 1.0mm WLCSP package
Applications
• Camera phones
• Mobile phones
• DSC, GPS, PMP, and PDAs
• Portable medical devices
• Portable electronics
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Typical Application
Camera Module Power Supply
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
July 2011
M9999-071211-A