®
SP6213
Micropower, SC-70, 100mA CMOS LDO Regulator
FEATURES
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Tiny 5-pin SC-70 Package
Guaranteed 100 mA Output
2.5% Output Voltage Accuracy
Low Dropout Voltage: 250 mV at 100mA
Low Quiescent Current: 65
µA
Low Ground Current: 135
µA
@ I
L
= 100mA
Low Shutdown Current: 1µA MAX
Current Limit: 190mA
Thermal Shutdown: 168°C
Good Load and Line Regulation
Fast Transient Response: T
ON
/T
OFF
=80µs
Low Temperature Coefficient
Unconditionally Stable with 1µF Ceramic
Fixed Outputs: 1.8V, 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 5V
100mA Replacement for 80mA MIC5213
GND
NC*
EN
3
2
1
SP6213
5 Pin SC70
4
V
OUT
5
V
IN
*connect to GND for enhanced
thermal performance
APPLICATIONS
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Digital Cordless Phones
Cellular Phones
PDAs
Digital Still Cameras
MP3 Players
Battery-Powered Equipment
Medical Devices
Data Cable
DESCRIPTION
The SP6213 is a 100mA CMOS linear voltage regulator offered in an SC-70 package that reduces board space
requirements by 50% over a SOT-23 package. The SP6213 features low dropout voltage (250mV at 100mA ), low
ground current (135µA at full load) and low, 65µA quiescent current. Designed specifically for hand-held, battery
powered devices, the device includes an enable/shutdown pin. Regulator ground current increases only slightly in
dropout to extend battery life. The SP6213 is offered in an industry standard 5-pin SC-70 package. SP6213 is available
in 1.8V, 2.5V, 2.7V, 2.85V, 3.0V, 3.3V and 5.0V fixed output voltages.
FUNCTIONAL DIAGRAM
V
IN
V
OUT
Enable
Shutdown
EN
Bandgap
Reference
1.25V
+
–
Current Limit
& Thermal Shutdown
GND
Rev. 9/22/03
SP6213 Micropower, SC-70, 100mA CMOS LDO Regulator
© Copyright 2003 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Input Voltage (V
IN
)...................................-2V to 7V
Output Voltage (V
OUT
)...............................-0.6 to (V
IN
+1V)
Enable Input Voltage (V
EN
).............................-2V to 7V
Power Dissipation (P
D
)............Internally Limited, Note 3
Lead Temperature (soldering 5s)..........................260°C
Storage Temperature............................-65˚C to +150˚C
(Note 1) These are stress ratings only and functional
operation of the device at these ratings or any other
above those indicated in the operation sections of the
specifications below is not implied. Exposure to absolute
maximum rating conditions for extended periods of time
may affect reliability.
OPERATING RATINGS (Note 2)
Input Voltage (V
IN
) ................................... +2.5V to +6V
Enable Input Voltage (V
EN
) ........................... 0V to +6V
Junction Temperature (T
J
) ................. -40˚C to +125˚C
Thermal Resistance ................................... (Note 3)
SC-70-5 (θ
JA
) .............................. 330°C/W
ELECTRICAL SPECIFICATIONS
V
IN
= V
OUT
+0.5V, I
L
= 100µA, C
IN
= 1µF, C
OUT
= 1µF, T
J
= 25
°
C , unless otherwise noted. The
♦
denotes the specifications which apply over the full
operating temperature range, unless otherwise specified.
PARAMETER
Output Voltage Accuracy, (V
OUT
)
Output Voltage Temperature
Coefficient, Note 4, (∆V
OUT
/∆T)
Minimum Supply Voltage
MIN
-2.5
-4
TYP
MAX
2.5
4
UNITS
%
ppm/
°
C
♦
♦
CONDITIONS
Variation from specified V
OUT
60
2.50
2.55
2.75
0.05
0.05
0.4
0.4
0.25
130
250
2.70
2.85
3.00
0.2
0.2
0.8
0.8
4
250
500
1
125
125
175
250
V
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
I
OUT
= 100µA
I
OUT
= 50mA
I
OUT
= 100mA
V
IN
= (V
OUT
+ 0.5V) to 6V
V
IN
= 2.8V to 6V
I
L
= 0.1mA to 100mA, V
IN
= V
OUT
+1V
I
L
= 0.1mA to 100mA, V
IN
= 3.0V
I
L
= 100
µA
I
L
= 50mA
I
L
= 100mA
V
EN
≤
0.4V (Shutdown)
V
EN
≥
1.6V (Operating), I
L
= 0µA
V
EN
≥
1.6V, I
L
= 100
µA
V
EN
≥
1.6V, I
L
= 50mA
V
EN
≥
1.6V, I
L
= 100mA
Frequency = 100Hz, I
L
= 10mA
Frequency = 400kHz, I
L
= 10mA
♦
Turns On
Turns Off
Line Regulation, (
∆V
OUT
/ V
IN
)
SP6213-1.8V Line Regulation
Load Regulation, Note 5, (
∆V
OUT
)
SP6213-1.8V Load Regulation
Dropout Voltage, Note 6, (V
IN
– V
OUT
)
%/V
%/V
%
%
mV
mV
mV
µA
µA
µA
µA
dB
Quiescent Current, (I
GND
)
Ground Pin Current, Note 7, (I
GND
)
0.01
65
65
100
135
Power Supply Rejection Ratio,
(PSRR)
Current Limit, (I
CL
)
Thermal Limit
Thermal Regulation, (
∆V
OUT
/∆P
D
),
Note 8
Output Noise (e
NO
)
Rev. 9/22/03
74
40
120
190
168
153
0.05
250
350
mA
°
C
%/W
µVrms
I
L
=50mA, C
L
=1µF, 10Hz to 100kHz
© Copyright 2003 Sipex Corporation
SP6213 Micropower, SC-70, 100mA CMOS LDO Regulator
2
ELECTRICAL SPECIFICATIONS: Continued
V
IN
= V
OUT
+0.5V, I
L
= 100µA, C
IN
= 1µF, C
OUT
= 1µF, T
J
= 25
°
C , unless otherwise noted. The
♦
denotes the specifications which apply over
the full operating temperature range, unless otherwise specified.
PARAMETER
ENABLE INPUT
Enable Input Logic-Low Voltage, (V
IL
)
Enable Input Logic-High Voltage, (V
IH
)
Enable Input Current, (I
IL
), (I
IH
)
MIN
TYP
MAX
UNITS
♦
CONDITIONS
0.4
1.6
0.01
0.01
1
1
165
175
35
V
V
µA
µA
µs
µs
♦
♦
♦
♦
Regulator Shutdown
Regulator Enabled
V
IL
< 0.4V
V
IH
> 1.6V
I
OUT
=50mA
I
OUT
=100µA
I
OUT
=100mA
Turn on Time (T
ON
)
Turn off Time (T
OFN
)
80
80
30
Note 1.
Exceeding the absolute maximum rating may damage the device.
Note 2.
The device is not guaranteed to function outside its operating rating.
Note 3.
The maximum allowable power dissipation at any T
A
(ambient temperature) is P
D (MAX)
= (T
J (MAX)
– T
A
) / q
JA
.
Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the
regulator will go into thermal shutdown. The Q
JA
of the SP6213 (SC-70-5) is 330°C/W mounted on a PC
board with minimum copper area (see “Thermal Considerations” section for further details).
Note 4.
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
Note 5.
Load Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts
are tested for load regulation in the load range. Changes in output voltage due to heating effects are
covered by the thermal regulation specification.
Note 6.
Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below
its nominal value measured at 0.5V differential. Not applicable to output voltages less than 2.7V.
Note 7.
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.
Note 8.
Thermal regulation is defined as the change in output voltage at a time ”t” after a change inpower
dissipation is applied, excluding load or line regulation effects. Specifications are for a 100mA load pulse
at V
IN
= 6V for t = 10ms.
Note 9.
Devices are ESD sensitive. Handling precautions are recommended.
Rev. 9/22/03
SP6213 Micropower, SC-70, 100mA CMOS LDO Regulator
© Copyright 2003 Sipex Corporation
3
PIN DESCRIPTION
PIN NUMBER
3
4
5
1
2
PIN NAME
GND
V
OUT
V
IN
EN
NC
DESCRIPTION (FUNCTION)
Ground Connection
Regulator Output
Supply Input
Enable / Shutdown (Logic high=enable; logic low = shutdown)
No Connection
THEORY OF OPERATION
General Overview
Enable/Shutdown Operation
The SP6213 is turned off by pulling the EN pin low
and turned on by pulling it high. If this enable/
shutdown feature is not required, EN should be
tied to V
IN
to keep the regulator output on at all
times.
Input Capacitor
A small capacitor of about 1µF is required from
V
IN
to GND if e.g. a battery is used as the input.
Any good quality ceramic or tantalum capacitor
may be used at the input.
Output Capacitor
An output capacitor is required between V
OUT
and
GND to prevent oscillation. The minimum size of
the output capacitor is a 0.47
µF
ceramic. The
given datasheet values relate to an IC with a
ceramic output capacitor of 1µF. Larger values
make the IC more stable which means an improve-
ment of the regulator’s transient response. For a
lower output current, the output capacitance can be
chosen smaller in order to have the same output
stability.
No Load Stability
The SP6213 will remain stable and in regulation
with no external load (other than the internal
voltage driver) unlike many other voltage regula-
tors. This is especially important in CMOS RAM
keep-alive applications.
Thermal Considerations
The SP6213 is designed to provide 100 mA of
continuous current in a very tiny package. Maxi-
mum power dissipation can be calculated based on
the output current and the voltage drop across the
part. To determine the maximum power dissipa-
tion of the package, use the junction-to-ambient
thermal resistance of the device and the following
basic equation:
P
D
= (T
J(max)
- T
A
) /
Θ
JA
T
J(max)
is the maximum junction temperature of the
die and is 125°C. T
A
is the ambient operating.
Θ
JA
is the junction-to-ambient thermal resistance for
the regulator and is layout dependent.The actual
power dissipation of the regulator circuit can be
determined using one simple equation:
P
D
= (V
IN
- V
OUT
)*I
OUT
+ V
IN
*I
GND
Substituting P
D(max)
for P
D
and solving for the
operating conditions that are critical to the applica-
tion will give the maximum operating conditions
for the regulator circuit. For example, if we are
operating the SP6213 at 3.0V output at room
temperature, with a minimum footprint layout, we
can determine the maximum input voltage for a set
output current.
P
D(max)
=[(125°C -25°C) / (330°C/W)] = 303 mW.
To prevent the device from entering thermal shut-
down, maximum power dissipation can not be
exceeded. Using the output voltage of 3.0V and an
output current of 100 mA, the maximum input
voltage can be determined. Ground pin current can
be taken from the electrical spec’s- table (0.135
mA at 100 mA). The maximum input voltage is
determined as follows:
303mW = (V
IN
– 3.0V)*100mA + V
IN
*0.135mA
After calculations, we find that the maximum
input voltage of a 3.0V application at 100mA of
output current in an SC-70-5 package is 6.02V.
© Copyright 2003 Sipex Corporation
Rev. 9/22/03
SP6213 Micropower, SC-70, 100mA CMOS LDO Regulator
4
TYPICAL CHARACTERISTICS
27°C, V
IN
=4V, I
L
= 0.1mA, C
IN
= C
OUT
= 1µF unless otherwise specified.
3.05
3.04
V
IN
=4V
V
IN
=5.5V
V
OUT
(V)
V
IN
=7V
3.05
3.04
3.03
3.02
3.01
3
2.99
V
IN
=4V
V
IN
=5.5V
V
IN
=7V
V
OUT
(V)
3.03
3.02
3.01
3
-50
0
50
Temperature (°C)
100
150
-50
0
50
Temperature (°C)
100
150
Output Voltage vs. Temperature (I
OUT
= 0.1mA)
Output Voltage vs. Temperature (I
OUT
= 10mA)
3.04
3.03
V
IN
=4
V
V
OUT
(V)
V
OUT
(V)
3.02
3.01
3
2.99
2.98
2.97
-50
0
50
100
V
IN
=5.5V
V
IN
=7V
3.04
3.03
3.02
3.01
3
2.99
2.98
2.97
2.96
2.95
-50
0
50
Temperature (°C)
V
IN
=4V
V
IN
=5.5V
V
IN
=7V
150
100
150
Temperature (°C)
Output Voltage vs. Temperature (I
OUT
= 50mA)
Output Voltage vs. Temperature (I
OUT
= 100mA)
200
V
DROPOUT
(V)
V
IN
=4V
0.25
0.2
0.15
0.1
0.05
0
I
LOAD
=10mA
I
LOAD
=50mA
I
LOAD
=100mA
150
Iq (uA)
100
V
IN
=5.5V
V
IN
=7V
50
0
-50
0
50
100
150
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
Temperature (°C)
Quiescent Current vs. Temperature (I
OUT
= 0A)
Dropout Voltage vs. Temperature
3.045
3.040
V
IN
= 4V
Vin
= 4V
V
OUT
(V)
Line Regulation at 27°C
3.045
Io=0.1mA
3.035
Io=10mA
Io=50mA
3.025
Io=100mA
V
OUT
(V)
3.035
3.030
3.025
0
20
40
60
80
100
V
IN
= 5.5V
Vin
= 5.5V
V
IN
= 7V
Vin
= 7V
3.015
3
4
5
V
IN
(V)
6
7
Io (mA)
Output Voltage vs. Output Current
Output Voltage vs. Input Voltage
Rev. 9/22/03
SP6213 Micropower, SC-70, 100mA CMOS LDO Regulator
© Copyright 2003 Sipex Corporation
5
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