MIC5319
500mA Cap Ultra-Low Dropout
High PSRR LDO Regulator
General Description Features
The MIC5319 is a high-performance, 500mA LDO
Ultra-low dropout voltage 200mV @ 500mA
regulator, offering extremely high PSRR and very-low
Input voltage range: 2.5 to 5.5V
noise while consuming low ground current.
Stable with ceramic output capacitor
Ideal for battery-operated applications, the MIC5319
Low output noise: 40Vrms
features 1% accuracy, extremely low-dropout voltage
Low quiescent current of 90A total
(200mV @ 500mA), and low ground current at light load
(typically 90A). Equipped with a logic-compatible enable High PSRR, up to 70dB @1kHz
pin, the MIC5319 can be put into a zero-off-mode current
Fast turn-on-time: 40s typical
state, drawing no current when disabled.
High-output accuracy:
The MIC5319 is a Cap design operating with very-small
1.0% initial accuracy
ceramic output capacitors for stability, thereby reducing
2.0% over temperature
required board space and component cost.
Thermal-shutdown protection
The MIC5319 is available in fixed-output voltages and
Current-limit protection
adjustable output voltages in the super-compact 2mm x
Logic-controlled Enable
2mm MLF leadless package and thin SOT-23-5 package.
Tiny 2mm x 2mm MLF package, 500mA continuous
Data sheets and support documentation can be found on
Thin SOT-23-5 package, 500mA peak
Micrels web site at www.micrel.com.
Applications
Cellular phones
PDAs
Fiber optic modules
Portable electronics
Notebook PCs
Audio Codec power supplies
Typical Application
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 Micrel, Inc. MIC5319
Ordering Information
Junction
(1) (2)
Part Number Marking Voltage (V) Package Lead Finish
Temperature Range
MIC5319-1.3HYML 1.375 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
13H
MIC5319-1.8YML 1.8 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
918
MIC5319-1.85YML 1.85 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
91J
MIC5319-2.5YML 2.5 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
925
MIC5319-2.6YML 2.6 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
926
MIC5319-2.7YML 2.7 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
927
MIC5319-2.8YML 2.8 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
928
MIC5319-2.85YML 2.85 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
92J
MIC5319-2.9YML 2.9 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
929
MIC5319-3.0YML 3.0 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
930
MIC5319-3.3YML 3.3 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
933
MIC5319-5.0YML 5.0 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
950
MIC5319YML ADJ 40C to +125C 6-Pin 2mm 2mm MLF Pb-Free
9AA
MIC5319-1.3HYD5 N13H 1.375 40C to +125C Thin SOT-23-5 Pb-Free
MIC5319-1.8YD5 N918 1.8 40C to +125C Thin SOT-23-5 Pb-Free
MIC5319-1.85YD5 N91J 1.85 40C to +125C Thin SOT-23-5 Pb-Free
MIC5319-2.5YD5 N925 2.5 Thin SOT-23-5 Pb-Free
40C to +125C
MIC5319-2.6YD5 N926 2.6 40C to +125C Thin SOT-23-5 Pb-Free
MIC5319-2.7YD5 N927 2.7 Thin SOT-23-5 Pb-Free
40C to +125C
MIC5319-2.8YD5 N928 2.8 40C to +125C Thin SOT-23-5 Pb-Free
(3)
MIC5319-2.9YD5 N929 2.9 Thin SOT-23-5 Pb-Free
40C to +125C
MIC5319-3.0YD5 N930 3.0 40C to +125C Thin SOT-23-5 Pb-Free
MIC5319-3.3YD5 N933 3.3 Thin SOT-23-5 Pb-Free
40C to +125C
MIC5319-5.0YD5 N950 5.0 40C to +125C Thin SOT-23-5 Pb-Free
Notes:
1. Under-bar/Over-bar symbols may not be to scale.
2. For other output voltage options, contact Micrel Marketing.
3. Contact Micrel Marketing for availability.
M9999-071812
July 2012 2