MIC5318(2007) 查看數據表（PDF） - Micrel
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MIC5318 Datasheet PDF : 11 Pages
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MIC5318
High Performance 300mA
µCap ULDO™
General Description
The MIC5318 is a high performance, single output
ultra low drop-out (ULDO™) regulator, offering low
total output noise in an ultra-small Thin MLF®
package. The MIC5318 is capable of sourcing 300mA
output current and offers high PSRR and low output
noise, making it an ideal solution for RF applications.
Ideal for battery operated applications, the MIC5318
offers 2% initial accuracy, extremely low dropout
voltage (110mV @ 300mA), and low ground current
(typically 85µA total). The MIC5318 can also be put
into a zero-off-mode current state, drawing no current
when disabled.
The MIC5318 is available in the 1.6mm x 1.6mm Thin
MLF® package, occupying only 2.56mm2 of PCB area,
fully a 36% reduction in board area when compared to
SC-70 and 2mm x 2mm MLF® packages.
The MIC5318 has an operating junction temperature
range of –40°C to +125°C and is available in fixed and
adjustable output voltages in lead-free (RoHS
compliant) Thin MLF® and Thin SOT23-5 packages.
Data sheets and support documentation can be found
on Micrel’s web site at: www.micrel.com.
Features
• Ultra low dropout voltage 110mV @ 300mA
• Input voltage range: 2.3V to 6.0V
• 300mA guaranteed output current
• Stable with ceramic output capacitors
• Ultra low output noise – 30µVrms
• Low quiescent current – 85µA total
• High PSRR > 70dB@1kHz
• Less than 35µs turn-on time
• High output accuracy
– ± 2% initial accuracy
– ± 3% over temperature
• Thermal shutdown and current limit protection
• Tiny 6-pin 1.6mm x 1.6mm Thin MLF® package
• Thin SOT23-5 package
Applications
• Mobile phones
• PDAs
• GPS receivers
• Portable electronics
• Digital still and video cameras
Typical Application
VIN
MIC5318-x.xYMT
VIN VOUT
1µF
EN
BYP
GND
0.01µF
1µF
Portable Application
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
January 2007
M9999-011207
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