MIC5256
150mA Cap LDO with Error Flag
General Description Features
The MIC5256 is an efficient, precise CMOS voltage
Input voltage range: 2.7V to 6.0V
regulator. It offers better than 1% initial accuracy,
Thin SOT package: 1mm height
extremely low-dropout voltage (typically 135mV at 150mA)
Error flag indicates fault condition
and low ground current (typically 90A) over load. The
Stable with ceramic output capacitor
MIC5256 features an error flag that indicates an output
fault condition such as overcurrent, thermal shutdown and Ultralow dropout: 135mV @ 150mA
dropout.
High output accuracy:
Designed specifically for handheld and battery-powered
1.0% initial accuracy
devices, the MIC5256 provides a TTL-logic-compatible
2.0% over temperature
enable pin. When disabled, power consumption drops
Low quiescent current:90A
nearly to zero.
Tight load and line regulation
The MIC5256 also works with low-ESR ceramic
Thermal-shutdown and current-limit protection
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless Zero off-mode current
devices.
TTL logic-controlled enable input
Key features include current limit, thermal shutdown, faster
transient response, and an active clamp to speed up
Applications
device turnoff. Available in the IttyBitty SOT-23-5
package and the new Thin SOT-23-5, which offers the
Cellular phones and pagers
same footprint as the standard IttyBitty SOT-23-5, but
Cellular accessories
only 1mm tall. The MIC5256 offers a range of output
Battery-powered equipment
voltages.
Laptop, notebook, and palmtop computers
Data sheets and support documentation can be found on
Consumer/personal electronics
Micrels web site at www.micrel.com.
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Typical Application
Low-Noise Regulator Application
IttyBitty is a registered 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. MIC5256
Ordering Information
Part Number Marking
Junction Temperature
Voltage** Package
Range
Standard Pb-Free Standard Pb-Free*
MIC5256-1.5BM5 MIC5256-1.5YM5 LX15 LX15 1.5V 40 to +125C 5-Pin SOT23
MIC5256-1.8BM5 MIC5256-1.8YM5 LX18 LX18 1.8V 40 to +125C 5-Pin SOT23
MIC5256-2.5BM5 MIC5256-2.5YM5 LX25 LX25 2.5V 40 to +125C 5-Pin SOT23
MIC5256-2.6BM5 MIC5256-2.6YM5 LX26 LX26 2.6V 40 to +125C 5-Pin SOT23
MIC5256-2.7BM5 MIC5256-2.7YM5 LX27 LX27 2.7V 40 to +125C 5-Pin SOT23
MIC5256-2.8BM5 MIC5256-2.8YM5 LX28 LX28 2.8V 40 to +125C 5-Pin SOT23
MIC5256-2.85BM5 MIC5256-2.85YM5 LX2J LX2J 2.85V 40 to +125C 5-Pin SOT23
MIC5256-2.9BM5 MIC5256-2.9YM5 LX29 LX29 2.9V 40 to +125C 5-Pin SOT23
MIC5256-3.0BM5 MIC5256-3.0YM5 LX30 LX30 3.0V 40 to +125C 5-Pin SOT23
MIC5256-3.1BM5 MIC5256-3.1YM5 LX31 LX31 3.1V 40 to +125C 5-Pin SOT23
MIC5256-3.3BM5 MIC5256-3.3YM5 LX33 LX33 3.3V 40 to +125C 5-Pin SOT23
MIC5256-2.85BD5 MIC5256-2.85YD5 NX2J NX2J 2.85V 40 to +125C 5-Pin TSOT23
Notes:
* Under bar symbol ( _ ) may not be to scale.
** Other Voltage available. Contact Micrel for details.
Pin Configuration
MIC5256-x.xBM5 MIC5256-x.xBD5
5-Pin SOT23 5-Pin Thin SOT23
MIC5256-x.xYM5 MIC5256-x.xYD5
5-Pin SOT23 5-Pin Thin SOT23
M9999-080510
August 2010 2