MIC5207
180mA Low-Noise LDO Regulator
General Description Features
The MIC5207 is an efficient linear voltage regulator with Ultra-low-noise output
ultra-low-noise output, very low dropout voltage (typically
High output voltage accuracy
17mV at light loads and 165mV at 150mA), and very low
Guaranteed 180mA output
ground current (720A at 100mA output). The MIC5207
Low quiescent current
offers better than 3% initial accuracy.
Low dropout voltage
Designed especially for hand-held, battery-powered
Extremely tight load and line regulation
devices, the MIC5207 includes a CMOS or TTL compatible
enable/shutdown control input. When in shutdown, power
Very low temperature coefficient
consumption drops nearly to zero.
Current and thermal limiting
Key MIC5207 features include a reference bypass pin to
Reversed-battery protection
improve its already low-noise performance, reversed-
Zero off-mode current
battery protection, current limiting, and overtemperature
Logic-controlled electronic enable
shutdown.
The MIC5207 is available in fixed and adjustable output
voltage versions in a small SOT-23-5 package. Contact
Applications
Micrel for details.
Cellular telephones
For low-dropout regulators that are stable with ceramic
Laptop, notebook, and palmtop computers
output capacitors, see the Cap MIC5245/6/7 family.
Battery-powered equipment
Data sheets and support documentation can be found on
PCMCIA V and V regulation/switching
Micrels web site at: www.micrel.com.
CC PP
Consumer/personal electronics
SMPS post-regulator/dc-to-dc modules
High-efficiency linear power supplies
Typical Application
Battery-Powered Regulator Application
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5207
Ordering Information
Part Number Marking Voltage* Junction Temp. Range Package Lead Finish
MIC5207-1.8BD5 NE18 1.8V 40 to +125C 5-Pin Thin SOT-23 Standard
MIC5207BM5 LEAA Adj. 40 to +125C 5-Pin SOT-23 Standard
MIC5207-1.8BM5 LE18 1.8V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-2.5BM5 LE25 2.5V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-2.8BM5 LE28 2.8V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.0BM5 LE30 3.0V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.2BM5 LE32 3.2V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.3BM5 LE33 3.3V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.6BM5 LE36 3.6V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.8BM5 LE38 3.8V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-4.0BM5 LE40 4.0V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-5.0BM5 LE50 5.0V 40 to +125C 5-Pin SOT-23 Standard
MIC5207-3.3BZ*** -- 3.3V 40 to +125C 3-Pin TO-92 Standard
MIC5207-1.8YD5 NE18** 1.8V 40 to +125C 5-Pin Thin SOT-23 Pb-Free
MIC5207YM5 LEAA** Adj. 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-1.8YM5 LE18** 1.8V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-2.5YM5 LE25** 2.5V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-2.8YM5 LE28** 2.8V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-2.9YM5 LE29** 2.9V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.0YM5 LE30** 3.0V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.1YM5 LE31** 3.1V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.2YM5 LE32** 3.2V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.3YM5 LE33** 3.3V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.6YM5 LE36** 3.6V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.8YM5 LE38** 3.8V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-4.0YM5 LE40** 4.0V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-5.0YM5 LE50** 5.0V 40 to +125C 5-Pin SOT-23 Pb-Free
MIC5207-3.3YZ*** -- 3.3V 40 to +125C 3-Pin TO-92 Pb-Free
* Other voltages available. Contact Micrel for details.
** Under bar ( __ ) symbol may not be to scale.
*** TO-92 Package discontinuance notification issued September 2007. End-of-life-buy offered thru December 31, 2007. Contact factory for
additional information.
M9999-123107
December 2007 2