MIC5206
150mA Low-Noise LDO Regulator
General Description Features
The MIC5206 is an efficient linear voltage regulator with
Error flag indicates undervoltage fault
very low dropout voltage (typically 17mV at light loads and
High output voltage accuracy
165mV at 150mA), and very low ground current (600A at
Guaranteed 150mA output
100mA output), with better than 1% initial accuracy. It has
Ultra-low-noise output (8-pin versions)
a logic compatible enable/shutdown control input and an
internal undervoltage monitor. Low quiescent current
Low dropout voltage
Designed especially for hand-held, battery-powered
devices, the MIC5206 can be switched by a CMOS or TTL Extremely tight load and line regulation
compatible logic signal. When disabled, power
Very low temperature coefficient
consumption drops nearly to zero. Dropout ground current
Current and thermal limiting
is minimized to prolong battery life.
Reversed-battery protection
Key features include an undervoltage monitor with an error
Zero off-mode current
flag output, a reference bypass pin to improve its already
Logic-controlled electronic enable
low-noise performance (8-pin versions only), reversed-
battery protection, current limiting, and overtemperature
shutdown.
Applications
The MIC5206 is available in several fixed voltages in a tiny
Cellular telephones
SOT-23-5 package. It features a pinout, similar to the
Laptop, notebook, and palmtop computers
LP2980, but has significantly better performance. Fixed
Battery-powered equipment
and adjustable output voltage versions, featuring the
PCMCIA V and V regulation/switching
reference bypass option, are available in the 8-pin Micrel CC PP
Mini 8 8-pin MSOP (micro small-outline package).
Consumer/personal electronics
SMPS post-regulator/dc-to-dc modules
For low-dropout regulators that are stable with ceramic
output capacitors, see the Cap MIC5245/6/7 family.
High-efficiency linear power supplies
Data sheets and support documentation can be found on
Micrels web site at www.micrel.com.
Typical Application
SOT-23-5 Fixed Voltage Application Adjustable Voltage Application
Micrel Mini 8 is a trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5206
Ordering Information
Part Number
Standard Marking Pb-Free Marking Voltage* Junction Temp. Range Package
MIC5206-2.5BM5 LD25 MIC5206-2.5YM5 LD25 2.5V 40 to +125C 5-Pin SOT-23
MIC5206-2.7BM5 LD27 MIC5206-2.7YM5 LD27 2.7V 40 to +125C 5-Pin SOT-23
MIC5206-3.0BM5 LD30 MIC5206-3.0YM5 LD30 3.0V 40 to +125C 5-Pin SOT-23
MIC5206-3.2BM5 LD32 MIC5206-3.2YM5 LD32 3.2V 40 to +125C 5-Pin SOT-23
MIC5206-3.3BM5 LD33 MIC5206-3.3YM5 LD33 3.3V 40 to +125C 5-Pin SOT-23
MIC5206-3.6BM5 LD36 MIC5206-3.6YM5 LD36 3.6V 40 to +125C 5-Pin SOT-23
MIC5206-3.8BM5 LD38 MIC5206-3.8YM5 LD38 3.8V 40 to +125C 5-Pin SOT-23
MIC5206-4.0BM5 LD40 MIC5206-4.0YM5 LD40 4.0V 40 to +125C 5-Pin SOT-23
MIC5206-5.0BM5 LD50 MIC5206-5.0YM5 LD50 5.0V 40 to +125C 5-Pin SOT-23
MIC5206BMM MIC5206YMM ADJ 40 to +125C 8-Pin MSOP
MIC5206-3.0BMM MIC5206-3.0YMM 3.0V 40 to +125C 8-Pin MSOP
MIC5206-3.3BMM MIC5206-3.3YMM 3.3V 40 to +125C 8-Pin MSOP
MIC5206-3.6BMM MIC5206-3.6YMM 3.6V 40 to +125C 8-Pin MSOP
MIC5206-3.8BMM MIC5206-3.8YMM 3.8V 40 to +125C 8-Pin MSOP
MIC5206-4.0BMM MIC5206-4.0YMM 4.0V 40 to +125C 8-Pin MSOP
MIC5206-5.0BMM MIC5206-5.0YMM 5.0V 40 to +125C 8-Pin MSOP
* Other voltages available. Contact Micrel for details.
M9999-051506
May 2006 2
(408) 955-1690