MIC5200
Micrel, Inc.
MIC5200
100mA Low-Dropout Regulator
General Description
The MIC5200 is an efficient linear voltage regulator with
very low dropout voltage (typically 17mV at light loads and
200mV at 100mA), and very low ground current (1mA at
100mA output), offering better than 1% initial accuracy with
a logic compatible ON/OFF switching input. Designed espe-
cially for hand-held battery powered devices, the MIC5200
is switched by a CMOS or TTL compatible logic signal. The
ENABLE control may be tied directly to V
IN
if unneeded.
When disabled, power consumption drops nearly to zero.
The ground current of the MIC5200 increases only slightly in
dropout, further prolonging battery life. Key MIC5200 features
include protection against reversed battery, current limiting,
and over-temperature shutdown.
The MIC5200 is available in several fixed voltages and ac-
curacy configurations. Other options are available; contact
Micrel for details.
Features
•
•
•
•
•
•
•
•
•
•
•
High output voltage accuracy
Variety of output voltages
Guaranteed 100mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Zero OFF mode current
Logic-controlled electronic shutdown
Available in 8-lead SOIC, MM8™ 8-lead MSOP,
and SOT-223 packages
Cellular Telephones
Laptop, Notebook, and Palmtop Computers
Battery Powered Equipment
PCMCIA V
CC
and V
PP
Regulation/Switching
Bar Code Scanners
SMPS Post-Regulator/ DC to DC Modules
High Efficiency Linear Power Supplies
Applications
•
•
•
•
•
•
•
Typical Application
MIC5200-3.3
Output
1µF
Enable
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
M9999-040805
1
April 2005
MIC5200
Micrel, Inc.
Part Number
Voltage
3.0
3.3
4.8
5.0
3.3
5.0
3.0
3.3
4.8
5.0
Accuracy
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
Junction Temp. 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
Package
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin MSOP
8-Pin MSOP
3-lead SOT-223
3-lead SOT-223
3-lead SOT-223
3-lead SOT-223
Ordering Information
Standard
MIC5200-3.0BM
MIC5200-3.3BM
MIC5200-4.8BM
MIC5200-5.0BM
MIC5200-3.3BMM
MIC5200-5.0BMM
MIC5200-3.0BS
MIC5200-3.3BS
MIC5200-4.8BS
MIC5200-5.0BS
Pb-Free
MIC5200-3.0YM
MIC5200-3.3YM
MIC5200-4.8YM
MIC5200-5.0YM
MIC5200-3.3YMM
MIC5200-5.0YMM
MIC5200-3.0YS
MIC5200-3.3YS
MIC5200-4.8YS
MIC5200-5.0YS
* Other voltage options available. Contact Micrel Marketing for information.
Pin Configuration
OUT
OUT
NC
GND
1
IN
2
3
GND OUT
IN
IN
NC
EN
MIC5200-x.xBS
(SOT-223)
MIC5200-x.xBM
(SOIC-8)
MIC5200-x.xBM
(MSOP-8)
EN may be tied directly to V
IN
Pin Description
Pin Number
SOT-223
3
Pin Number
SO-8, MSOP-8
1, 2
3, 6
2,
TAB
4
5
1
7, 8
Pin Name
OUT
NC
GND
EN
IN
Pin Function
Output: Pins 1 and 2 must be externally connected together.
(not internally connected): Connect to ground plane for lowest thermal resis-
tance.
Ground: Ground pin and
TAB
are internally connected.
Enable/Shutdown (Input): TTL compatible input. High = enabled;
low = shutdown.
Supply Input: Pins 7 and 8 must be extenally connected together.
April 2005
2
M9999-040805
MIC5200
Micrel, Inc.
Absolute Maximum Ratings
Power Dissipation ................................................ Internally Limited
Lead Temperature (soldering, 5 sec.) ....................................260°C
Operating Junction Temperature Range.............. –40°C to +125°C
Input Supply Voltage .................................................–20V to +60V
Enable Input Voltage .................................................–20V to +60V
Thermal Characteristics
SOT-223
(θ
JC
) ..................................................................... 15°C/W
SO-8
(θ
JA
) ......................................................................See Note 1
Absolute Maximum Ratings
indicate limits beyond which damage
to the device may occur. Electrical specifications do not apply when
operating the device beyond its specified
Operating Ratings.
Recommended Operating Conditions
Input Voltage ................................................................2.5V to 26V
Operating Junction Temperature Range.............. –40°C to +125°C
Enable Input Voltage .....................................................–20V to V
IN
Electrical Characteristics
Limits in standard typeface are for T
J
= 25°C and limits in
boldface
apply over the junction temperature range of –40°C to +125°C. Un-
less otherwise specified, V
IN
= V
OUT
+ 1V, I
L
= 1mA, C
L
= 3.3µF, and V
ENABLE
≥ 2.0V
Symbol
V
O
∆V
O
∆T
∆V
O
V
IN
∆V
O
V
OUT
V
IN
– V
O
Parameter
Output Voltage
Accuracy
Output Voltage
Temperature Coef.
Line Regulation
Load Regulation
Conditions
Variation from specified V
OUT
(Note 2)
V
IN
= V
OUT
+ 1 V to 26V
I
L
= 0.1mA to 100mA (Note 3)
I
L
= 100µA
I
L
= 20mA
I
L
= 30mA
I
L
= 50mA
I
L
= 100mA
V
ENABLE
≤ 0.7V (Shutdown)
V
ENABLE
≥ 2.0V, I
L
= 100µA
I
L
= 20mA
I
L
= 30mA
I
L
= 50mA
I
L
= 100mA
V
IN
= 0.5V less than specified V
OUT
I
L
= 100µA (Note 5)
V
OUT
= 0V
(Note 6)
100
Min
–1
–2
40
0.004
0.04
Typical
Max
1
2
150
0.10
0.40
0.16
0.30
Units
%
ppm/°C
%
%
Dropout Voltage
(Note 4)
17
130
150
190
230
0.01
130
270
330
500
1000
70
270
250
0.05
100
mV
350
10
350
1500
dB
330
µA
mA
%/W
µV
µA
µA
I
GND
I
GND
Quiescent Current
Ground Pin Current
PSRR
I
GNDDO
I
LIMIT
∆V
O
∆P
D
e
n
Ripple Rejection
Ground Pin
Current at Dropout
Current Limit
Thermal Regulation
Output Noise
ENABLE Input
V
IL
I
IL
I
IH
Input Voltage Level
Logic Low
Logic High
ENABLE Input Current
OFF
ON
V
IL
≤ 0.7V
V
IH
≥ 2.0V
2.0
0.01
15
0.7
1
50
V
µA
M9999-040805
3
April 2005
MIC5200
Note 1:
Micrel, Inc.
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do
not apply when operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a
function of the maximum junction temperature, T
J (MAX)
, the junction-to-ambient thermal resistance,
θ
JA
, and the ambient tem-
perature, T
A
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
(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. The
θ
JC
of the MIC5200-xxBS is 15°C/W and
θ
JA
for the MIC5200BM is 160°C/W mounted on a PC
board (see “Thermal Considerations” section for further details).
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regula-
tion in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
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.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the
supply is the sum of the load current plus the ground pin current.
Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied,
excluding load or line regulation effects. Specifications are for a 100mA load pulse at V
IN
= 26V for t = 10ms.
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
April 2005
4
M9999-040805
MIC5200
Micrel, Inc.
Typical Characteristics
Dropout Voltage
vs. Output Current
DROPOUT VOLTAGE (V)
250
DROPOUT VOLTAGE (mV)
200
150
100
50
0
0.01
0.4
0.3
0.2
0.1
Dropout Voltage
vs. Temperature
OUTPUT VOLTAGE (V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Dropout
Characteristics
I
L
= 100mA
I
L
= 100mA
I
L
= 1mA
I
L
= 100µA,1mA
0.1
1
10
100 1000
OUTPUT CURRENT (mA)
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
2
4
6
8
INPUT VOLTAGE (V)
10
10
GROUND CURRENT (mA)
Ground Current
vs. Output Current
GROUND CURRENT (mA)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Ground Current
vs. Supply Voltage
OUTPUT VOLTAGE (V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
Output Voltage
vs. Output Current
I
L
= 100mA
C
IN
= 2.2µF
C
OUT
= 4.7µF
1
I
L
= 1mA
0.1
0.01
0.1
1
10
100
OUTPUT CURRENT (mA)
2
4
6
8
SUPPLY VOLTAGE (V)
10
0.1
0.2
OUTPUT CURRENT (A)
0.3
GROUND CURRENT (mA)
GROUND CURRENT (mA)
0.25
I
LOAD
= 100µA
C
IN
= 2.2µF
C
OUT
= 4.7µF
1.4
1.3
1.2
1.1
1.0
-50
I
LOAD
= 100mA
C
IN
= 2.2µF
C
OUT
= 4.7µF
∆ OUTPUT (mV)
0.30
Ground Current
vs. Temperature
1.5
Ground Current
vs. Temperature
100
50
0
Thermal Regulation
(3.3V Version)
200
-50
100
0
0
C
L
= 4.7 µF
0.20
0.15
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0
50
100
TEMPERATURE (°C)
150
LOAD (mA)
-100
-5
5 10 15 20 25 30 35
TIME (ms)
3.6
OUTPUT VOLTAGE (V)
3.5
3.4
3.3
3.2
3.1
Output Voltage vs. Temp.
(3.3V Version)
OUTPUT CURRENT (mA)
C
IN
= 2.2µF
C
OUT
= 4.7µF
260
240
220
200
180
160
140
MIN. INPUT VOLTAGE (V)
300
280
Output Current
vs. Temperature
3.30
3.29
3.28
3.27
3.26
3.25
3.24
3.23
3.22
Minimum Input Voltage
vs. Temperature
C
IN
= 2.2µF
C
OUT
= 4.7µF
I
LOAD
= 1mA
V
OUT
= 3.3V
3 DEV IC ES :
HI / AVG / LO
CURVES APPLICABLE
AT 100µA AND 100mA
V
OUT
= 0V
(SHORT CIRCUIT)
3.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
120
100
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
3.21
3.20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
M9999-040805
5
April 2005
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