MIC5501/2/3/4
Single 300mA LDO
Revision 2.0
General Description
The MIC5501/2/3/4 is an advanced general-purpose LDO
ideal for powering general-purpose portable devices. The
MIC5501/2/3/4 family of products provides a high-
performance 300mA LDO in an ultra-small 1mm x 1mm
package. The MIC5502 and MIC5504 LDOs include an
auto-discharge feature on the output that is activated when
the enable pin is low. The MIC5503 and MIC5504 have an
internal pull-down resistor on the enable pin that disables
the output when the enable pin is left floating. This is ideal
for applications where the control signal is floating during
processor boot up.
Ideal for battery-powered applications, the MIC5501/2/3/4
offers 2% initial accuracy, low dropout voltage (160mV at
300mA), and low ground current (typically 38µA). The
MIC5501/2/3/4 can also be put into a zero-off-mode
current state, drawing virtually no current when disabled.
The MIC5501/2/3/4 has an operating junction temperature
range of –40°C to 125°C.
Datasheets and support documentation can be found on
Micrel’s web site at:
www.micrel.com.
Features
•
•
•
•
•
•
•
•
•
•
•
Input voltage range: 2.5V to 5.5V
Fixed output voltages from 1.0V to 3.3V
300mA guaranteed output current
High output accuracy (±2%)
Low quiescent current: 38µA
Stable with 1µF ceramic output capacitors
Low dropout voltage: 160mV @ 300mA
Output discharge circuit: MIC5502, MIC5504
Internal enable pull-down: MIC5503, MIC5504
Thermal-shutdown and current-limit protection
4-lead 1.0mm x 1.0mm Thin DFN package
Applications
•
•
•
•
•
Smart phones
DSC, GPS, PMP, and PDAs
Medical devices
Portable electronics
5V systems
___________________________________________________________________________________________________________
Typical Application
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 14, 2013
Revision 2.0
Micrel, Inc.
MIC5501/2/3/4
Absolute Maximum Ratings
Supply Voltage (V
IN
) .......................................... –0.3V to 6V
Enable Voltage (V
EN
). ........................................ –0.3V to V
IN
Power Dissipation (P
D
) .............................. Internally Limited
Lead Temperature (soldering, 10sec) ........................ 260°C
Junction Temperature (T
J
) ........................ –40°C to +150°C
Storage Temperature (T
s
) ......................... –65°C to +150°C
ESD Rating..................................................................... 3kV
Operating Ratings
Supply Voltage (V
IN
) ......................................... 2.5V to 5.5V
Enable Voltage (V
EN
) .............................................. 0V to V
IN
Junction Temperature (T
J
) ........................ –40°C to +125°C
Junction Thermal Resistance
1x1 Thin DFN-4 (θ
JA
) ....................................... 250°C/W
Ordering Information
Part Number
MIC5501-3.3YMT
(2)
Marking
Code
VS
VP
VM
VG
V4
XS
XP
XM
(2)
(2)
(2)
(2)
Output
(1)
Voltage
3.3V
3.0V
2.8V
1.8V
1.2V
3.3V
3.0V
2.8V
1.8V
1.2V
3.3V
3.0V
2.8V
1.8V
1.2V
3.3V
3.1V
3.0V
2.8V
1.8V
1.2V
Auto-Discharge
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
EN
Pull-Down
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Temperature
Range
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
MIC5501-3.0YMT
MIC5501-2.8YMT
(2)
MIC5501-1.8YMT
MIC5501-1.2YMT
MIC5502-3.3YMT
MIC5502-3.0YMT
MIC5502-2.8YMT
(2)
(2)
MIC5502-1.8YMT
MIC5502-1.2YMT
MIC5503-3.3YMT
MIC5503-3.0YMT
MIC5503-2.8YMT
XG
X4
SV
ZV
MV
YV
XV
SX
TX
PX
MX
GX
ZX
(2)
(2)
(2)
MIC5503-1.8YMT
MIC5503-1.2YMT
MIC5504-3.3YMT
MIC5504-3.1YMT
MIC5504-3.0YMT
MIC5504-2.8YMT
MIC5504-1.8YMT
MIC5504-1.2YMT
Notes:
(2)
1. Other voltages are available. Contact Micrel for details.
2. Contact Micrel Marketing for availability.
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB
http://www.micrel.com
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.
© 2012 Micrel, Incorporated.
January 14, 2013
2
Revision 2.0
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