MIC5501/2/3/4
Single 300mA LDO
in 1.0mm × 1.0mm DFN Package
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 × 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 × 1.0mm Thin DFN package
MIC5504 5-pin SOT23 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
May 5, 2014
Revision 2.3
Micrel, Inc.
MIC5501/2/3/4
Ordering Information
Part Number
MIC5501-3.3YMT
(4)
Marking
Code
VS
VP
VM
VG
V4
XS
XP
XM
XG
X4
SV
ZV
MV
YV
XV
SX
TX
PX
MX
UW
GX
ZX
WXS
WXM
WXJ
WXG
WX4
(4)
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
2.2V
1.8V
1.2V
3.3V
2.8V
2.5V
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
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
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
–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
Package
(2,3)
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
4-Pin 1mm x 1mm Thin DFN
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
MIC5501-3.0YMT
MIC5501-2.8YMT
(4)
MIC5501-1.8YMT
MIC5501-1.2YMT
MIC5502-3.3YMT
MIC5502-3.0YMT
(4)
(4)
(4)
MIC5502-2.8YMT
MIC5502-1.8YMT
MIC5502-1.2YMT
MIC5503-3.3YMT
MIC5503-3.0YMT
MIC5503-2.8YMT
(4)
(4)
(4)
MIC5503-1.8YMT
MIC5503-1.2YMT
MIC5504-3.3YMT
MIC5504-3.1YMT
MIC5504-3.0YMT
MIC5504-2.8YMT
MIC5504-2.2YMT
MIC5504-1.8YMT
MIC5504-1.2YMT
MIC5504-3.3YM5
MIC5504-2.8YM5
MIC5504-2.5YM5
MIC5504-1.8YM5
MIC5504-1.2YM5
Notes:
1.
2.
3.
4.
(4)
Other voltages available. Contact Micrel for details.
Thin DFN ▲ = Pin 1 identifier.
Thin DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Contact Micrel Marketing for availability.
May 5, 2014
2
Revision 2.2
Micrel, Inc.
MIC5501/2/3/4
Pin Configuration
4-Pin 1mm × 1mm Thin DFN (MT)
(Top View)
5-Pin SOT23 (M5)
(Top View)
Pin Description
Pin Name
VOUT
GND
EN
VIN
NC
ePad
Pin Number
Thin DFN-4
1
2
3
4
-
EP
Pin Number
SOT23-5
5
2
3
1
4
-
Pin Function
Output Voltage. When disabled the MIC5502 and MIC5504 switches in an internal
25Ω load to discharge the external capacitors.
Ground
Enable Input: Active High. High = ON; Low = OFF. For MIC5501 and MIC5502 do not
leave floating. MIC5503 and MIC5504 have an internal pull-down and this pin may be
left floating.
Supply Input.
No Connection. Pin is not internally connected.
Exposed Heatsink Pad. Connect to GND for best thermal performance.
May 5, 2014
3
Revision 2.2
Micrel, Inc.
MIC5501/2/3/4
Absolute Maximum Ratings
(5)
Supply Voltage (V
IN
) .......................................... –0.3V to 6V
Enable Voltage (V
EN
). ........................................ –0.3V to V
IN
(7)
Power Dissipation (P
D
) ........................... Internally Limited
Lead Temperature (soldering, 10s) ............................ 260°C
Junction Temperature (T
J
) ........................ –40°C to +150°C
Storage Temperature (T
s
) ......................... –65°C to +150°C
(8)
ESD Rating .................................................................. 3kV
Operating Ratings
(6)
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
1mm × 1mm Thin DFN-4 (θ
JA
) ......................... 250°C/W
5-pin SOT23 (θ
JA
) ............................................ 253°C/W
Electrical Characteristics
(9)
V
IN
= V
EN
= V
OUT
+ 1V; C
IN
= C
OUT
= 1µF; I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate –40°C to +125°C, unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage
(10)
Condition
Variation from nominal V
OUT
Variation from nominal V
OUT
; –40°C to +125°C
V
IN
= V
OUT
+1V to 5.5V; I
OUT
= 100µA
I
OUT
= 100µA to 300mA
I
OUT
= 150mA
I
OUT
= 300mA
(12)
Min.
–2.0
–3.0
Typ.
Max.
+2.0
+3.0
Units
%
%
%/V
mV
mV
mV
µA
µA
dB
mA
µV
RMS
Ω
0.02
8
80
160
38
42
0.05
60
400
630
175
25
0.3
40
190
380
55
65
1
900
(11)
Ground Pin Current
I
OUT
= 0mA
I
OUT
= 300mA
V
EN
= 0V
f = 1kHz; C
OUT
= 1µF
V
OUT
= 0V
C
OUT
= 1µF, 10Hz to 100kHz
MIC5502, MIC5504 Only; V
EN
= 0V; V
IN
= 3.6V;
I
OUT
= –3mA
For MIC5503 and MIC5504 use only
Logic Low
Logic High
V
EN
= 0V
V
EN
= 5.5V
V
EN
= 0V
V
EN
= 5.5V
C
OUT
= 1µF; I
OUT
= 150mA
1.2
Ground Pin Current in Shutdown
Ripple Rejection
Current Limit
Output Voltage Noise
Auto-Discharge NFET
Resistance
Enable Input
Enable Pull-Down Resistor
Enable Input Voltage
Enable Input Current
MIC5501, MIC5502
Enable Input Current
MIC5503, MIC5504
Turn-On Time
4
0.2
0.01
0.01
0.01
1.4
50
1
1
1
2
125
MΩ
V
V
µA
µA
µA
µA
µs
Notes:
5. Exceeding the absolute maximum rating may damage the device.
6. The device is not guaranteed to function outside its operating rating.
7. The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D(max)
= (T
J(max)
– T
A
) /
θ
JA
. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
8. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
9. Specification for packaged product only.
10. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are
covered by the thermal regulation specification.
11. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
12. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
May 5, 2014
4
Revision 2.2
Micrel, Inc.
MIC5501/2/3/4
Typical Characteristics
Power Supply
Rejection Ratio
-100
-90
Dropout Voltage
vs. Output Current
160
140
120
100
80
60
40
20
0
0
50
100
150
200
250
300
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
200
180
Dropout Voltage
vs.Temperature
DROPOUT VOLTAGE (mV)
DROPOUT VOLTAGE (mV)
300mA
-80
-70
I
OUT
= 100mA
160
140
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
100
120
50mA
150mA
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
PSRR (dB)
-60
-50
-40
-30
-20
-10
0
10
10
100
1k
1,000
C
OUT
= 1µF
C
IN
= 1µF
V
IN
= 3.8V
V
OUT
= 2.8V
10k
100k
1M
10,000 100,000 1,000,000
I
OUT
= 300mA
FREQUENCY (Hz)
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Ground Current
vs. Supply Voltage
50
300mA
46
45
Ground Current
vs. Load Current
50
48
Ground Current
vs. Temperature
300mA
GROUND CURRENT (µA)
GROUND CURRENT (µA)
44
43
42
41
40
39
38
37
36
V
IN
= V
EN
= V
OUT
+ 1
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
0
50
100
150
200
250
300
GROUND CURRENT (µA)
45
46
44
42
40
38
36
34
32
30
-40
-20
0
20
40
60
80
100
120
V
IN
= V
EN
= V
OUT
+ 1V
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
150mA
100µA
50mA
40
35
100µA
30
V
EN
= V
IN
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
2.5
3.0
3.5
4.0
4.5
5.0
5.5
25
20
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
TEMPERATURE (°C)
Output Voltage
vs. Output Current
3.50
3.45
3.5
3.4
Output Voltage
vs. Supply Voltage
3.50
Output Voltage
vs. Temperature
OUTPUT VOLTAGE (V)
3.40
3.35
3.30
3.25
3.20
3.15
3.10
0
50
100
150
200
250
300
V
IN
= V
EN
= V
OUT
+ 1V
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
OUTPUT VOLTAGE (V)
50mA
3.2
3.1
3.0
150mA
2.9
2.8
300mA
2.7
2.6
2.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
V
IN
= V
EN
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
OUTPUT VOLTAGE (V)
3.3
3.45
3.40
3.35
300mA
3.30
150mA
3.25
V
IN
= V
OUT
+ 1V
V
OUT
= 3.3V
C
IN
= C
OUT
= 1µF
-40
-20
0
20
40
60
80
100
120
3.20
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
May 5, 2014
5
Revision 2.2
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