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MIC5524

Micrel Semiconductor
Part Number MIC5524
Manufacturer Micrel Semiconductor
Description High-Performance 500mA LDO
Published Aug 13, 2014
Detailed Description MIC5524 High-Performance 500mA LDO in Thin DFN Package General Description The MIC5524 is a low-power, µCap, low dropou...
Datasheet PDF File MIC5524 PDF File

MIC5524
MIC5524

Overview
MIC5524 High-Performance 500mA LDO in Thin DFN Package General Description The MIC5524 is a low-power, µCap, low dropout regulator designed for optimal performance in a very-small footprint.
It is capable of sourcing 500mA of output current and only draws 38µA of operating current to do so.
The MIC5524 includes an auto-discharge feature on the output that is activated when the enable pin is low and it has an internal pull down resistor on the enable pin that will disable the output when the enable pin is left floating, this is ideal for applications where the control signal is floating during processor boot up.
This high-performance LDO offers fast transient response and good PSRR in a 1mm × 1mm Thin (0.
4mm ht.
) DFN package.
Ideal for battery-operated applications, the MIC5524 offers 2% accuracy, extremely low dropout voltage (260mV @ 500mA), and can regulate output voltages down to 1.
0V.
Equipped with a TTL logic-compatible enable pin, the MIC5524 can be put into a zero-off-mode current state, drawing no current when disabled.
The MIC5524 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost for space-critical applications.
The MIC5524 has an operating junction temperature range of –40°C to 125°C.
Datasheets and support documentation are available on Micrel’s web site at: www.
micrel.
com.
Features • • • • • • • • • • • Input voltage range: 2.
5V to 5.
5V Fixed output voltages down to 1.
0V 500mA guaranteed output current High output initial accuracy (±1%) High PSRR 80dB Low quiescent current 38µA Stable with 2.
2µF ceramic output capacitors Low dropout voltage 260mV @ 500mA Auto discharge and internal enable pulldown Thermal-shutdown and current-limit protection 4-pin 1mm x 1mm Thin DFN package Applications • • • • Portable communication equipment DSC, GPS, PMP, and PDAs Portable medical devices 5V POL applications Typical Application Micrel Inc.
• 2180 Fortune Drive • San Jose, CA 9513...


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