Impala Linear Corporation
ILC7070
SOT-23 CMOS LDO Regulator with Shutdown
General Description
150mA CMOS LDO regulator in a 5-lead SOT-23 package,
featuring 120mV dropout at 100mA levels and nearly negli-
gible dropout below 5mA.
The part offers ±2% precision as standard, yet draws only
5µA of current in operation and drops to 0.5µA in shutdown.
The outputs offer short-circuit protection, and the shutdown
pin has an internal pull-down which will disable the output if
the pin is left floating.
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Features
All-CMOS design in 5-lead SOT-23 package
±2% precision outputs
Up to 150mA output current
120mV dropout at 100mA load
Only 5µA quiescent current at full load
0.5µA quiescent current in shutdown
Voltage options allow:
50mA 5V Regulator
50mA 5V to 3.3, 3.0, or 2.5V Convertor
150mA 3.3V or 3.0V to 2.5V Convertor
Applications
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•
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Battery-powered Equipment
Reference voltage sources
Portable Cameras and Video Recorders
PDAs
Ordering Information
ILC7070HCM-25
ILC7070HCM-30
ILC7070HCM-33
ICL7070HCM-50
50mA 5V to 2.5V regulator, or 150mA 3.x to 2.5V regulator, High-level true Chip Enable
50mA 5V to 3.0V regulator, High-level true Chip Enable
50mA 5V to 3.3V regulator, High-level true Chip Enable
30mA 5V regulator, High-level true Chip Enable
Block Diagram
V
IN
SHORT-CIRCUIT
PROTECT
SHUTDOWN CONTROL
REFERENCE VOLTAGE
SOURCE
Pin-Package Configurations
V
OUT
V
OUT
5
V
SS
4
-
+
V
SS
SOT-23-5
(TOP VIEW)
1
(NC)
2
V
IN
3
CE
CE
Impala Linear Corporation
ILC7070 1.1
(408) 574-3939
www.impalalinear.com
Oct 1999
1
SOT-23 CMOS LDO Regulator with Shutdown
Absolute Maximum Ratings (T
A
= 25°C)
Parameter
Input Voltage
CE Input Voltage
Output Current
Output Voltage
Continuous Total
Power Dissipation
Operating Ambient
Temperature
Storage Temperature
Symbol
V
IN
V
CE
I
OUT
V
OUT
P
d(max)
T
opr
T
stg
Ratings
12
V
SS
-.0.3~V
IN
+ 0.3
500
V
SS
-0.3~V
IN
+ 0.3
150
-30~+80
-40~+125
Units
V
V
mA
V
mW
°C
°C
Note: I
OUT
must be less than P
d(max)
/ (V
IN
-V
OUT
)
Electrical Characteristics ILC7070HCM-50
V
OUT
= 5.0V, T
A
=25°C
Parameter
Output Voltage
Maximum Output Current
Load Stability
Input/Output
Voltage Differential
Supply Current 1
Supply Current 2
Input Stability
I
SS
1
I
SS
2
∆V
OUT
∆V
IN
• V
OUT
Input Voltage
Output Voltage
Temperature Characteristics
CE Input Current
CE ON Voltage
CE OFF Voltage
V
IN
∆V
OUT
∆T
opr
• V
OUT
I
IH
I
IL
CE
(ON)
CI
(OFF)
I
OUT
= 40mA
-30°C < T
opr
< 80°C
V
IN
= 6.0V, V
CE
= 2.5V
V
IN
= 6.0V, V
CE
= 0
V
IN
= 6.0V
V
IN
= 6.0V
2.5
0
2
4
0.1
V
IN
0.7
V
V
±100
V
IN
= V
CE
= 6.0V
V
IN
= 6.0V, V
CE
= open (Note 5)
I
OUT
= 40mA
6.0V < V
IN
< 10.0V
10
V
ppm/
°C
µA
6
0.5
12
2.0
0.3
µA
µA
%/V
Symbol
V
OUT
I
OUT
max
∆V
OUT
V
dif
Conditions
I
OUT
= 40mA, V
IN
= 6.0V
V
IN
= 6.0V, V
OUT
> 4.5V
V
IN
= 6.0V, 1mA < I
OUT
< 100mA
I
OUT
= 100mA, V
OUT
= V
SET
x 0.98
200
Min
4.90
125
80
300
Typ
5.0
Max
5.10
Units
V
mA
mV
mV
Impala Linear Corporation
ILC7070 1.1
(408) 574-3939
www.impalalinear.com
Oct 1999
2
SOT-23 CMOS LDO Regulator with Shutdown
Electrical Characteristics ILC7070HCM-25
V
OUT
= 2.5V, T
A
= 25°C
Parameter
Output Voltage
Maximum Output Current
Load Stability
Input/Output
Voltage Differential
Supply Current 1
Supply Current 2
Input Stability
Input Voltage
Output Voltage
Temperature Characteristics
CE Input Current
CE ON Voltage
CE OFF Voltage
I
SS
1
I
SS
2
∆V
OUT
∆V
IN
• V
OUT
V
IN
∆V
OUT
∆T
opr
• V
OUT
I
IH
I
IL
CE
(ON)
CE
(OFF)
I
OUT
= 40mA
-30°C < T
opr
< 80°C
V
IN
= 3.5V, V
CE
= 3.5V
V
IN
= 3.5V, V
CE
= 0V
V
IN
= 3.5V
V
IN
= 3.5V
2.5
0
2
4
0.1
V
IN
0.7
V
V
µA
±100
V
IN
= V
CE
= 3.5V
V
IN
= 3.5V, V
CE
= open (Note 5)
I
OUT
= 40mA
3.5V< V
IN
< 10V
10.0
V
ppm/°C
5
0.5
0.2
10
2
0.3
µA
µA
%/V
Symbol
V
OUT
I
OUT
max
∆V
OUT
V
dif
Conditions
I
OUT
= 40mA, V
IN
= 3.5V
V
IN
= 3.5V, V
OUT
> 2.25V
V
IN
= 3.5V, 1mA < I
OUT
< 60mA
I
OUT
= 60mA, V
OUT
= V
SET
x .98
Min
2.450
125
45
180
90
360
Typ
2.5
Max
2.55
Units
V
mA
mV
mV
Note:
1. V
OUT
means the output voltage when “V
OUT
+ 1.0V” is provided at the V
IN
pin while maintaining a certain I
OUT
value.
2. V
IN
1 is defined as the input value that is gradually decreased until the output value reaches V
OUT
x 98%.
3. V
dif
is defined as “V
IN
1-V
OUT.
”
4. I
OUT
: this is limited by continuous total power dissipation in the package.
5. When V
CE
is LOW or OPEN, the output is disabled.
Note: CE pin is a CMOS input. Because of this, when the input voltage reaches V
IN
/2, a rush current will start to flow.
Impala Linear Corporation
ILC7070 1.1
(408) 574-3939
www.impalalinear.com
Oct 1999
3
SOT-23 CMOS LDO Regulator with Shutdown
Typical Performance Characteristics
General conditions for all curves
OUTPUT VOLTAGE vs OUTPUT CURRENT
ILC7070HCM-30
3.1
5.1
OUTPUT VOLTAGE vs OUTPUT CURRENT
ILC7070HCM-50
V
IN
= 6.0V
OUTPUT VOLTAGE V
OUT
(V)
OUTPUT VOLTAGE V
OUT
(V)
V
IN
= 4.0V
5.0
T
opr
= -30°C
80°C
4.9
25°C
3.0
T
opr
= -30°C
80°C
2.9
25°C
4.8
2.8
0
20
40
60
80
100
120
140
160
0
40
80
120
160
200
OUTPUT CURRENT I
OUT
(mA)
OUTPUT CURRENT I
OUT
(mA)
OUTPUT VOLTAGE vs INPUT VOLTAGE
ILC7070HCM-30
3.2
T
opr
= 25°C
5.1
OUTPUT VOLTAGE vs INPUT VOLTAGE
ILC7070HCM-50
T
opr
= 25°C
OUTPUT VOLTAGE V
OUT
(V)
3.0
I
OUT
= 1mA
2.8
40mA
2.6
10mA
2.4
OUTPUT VOLTAGE V
OUT
(V)
5.0
I
OUT
= 1mA
40mA
4.6
10mA
4.4
4.8
2.2
2.5
3.0
3.5
4.2
4.5
5.0
5.5
INPUT VOLTAGE V
IN
(V)
INPUT VOLTAGE V
IN
(V)
OUTPUT VOLTAGE vs INPUT VOLTAGE
ILC7070HCM-30
3.04
OUTPUT VOLTAGE vs INPUT VOLTAGE
ILC7070HCM-50
5.05
T
opr
= 25°C
5.04
5.03
I
OUT
= 1mA
5.02
5.01
5.00
4.99
4.98
OUTPUT VOLTAGE V
OUT
(V)
T
opr
= 25°C
3.02
I
OUT
= 1mA
3.01
3.00
2.99
2.98
2.97
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10
OUTPUT VOLTAGE V
OUT
(V)
3.03
5.0
6.0
7.0
8.0
9.0
10
INPUT VOLTAGE V
IN
(V)
INPUT VOLTAGE V
IN
(V)
V
DO
vs
ILC7070HCM-30
0.6
0.5
OUTPUT CURRENT
1.0
0.8
T
opr
= 25°C
0.6
V
DO
vs
ILC7070HCM-50
OUTPUT CURRENT
0.4
80°C T
opr
= 25°C
0.4
V
DO
(V)
0.3
80°C
0.2
0.0
-0.2
0
20
40
60
80
100
120
140
160
V
DO
(V)
-30°C
0.2
-30°C
0.0
-0.2
-0.4
0
40
80
120
160
200
OUTPUT CURRENT I
OUT
(mA)
OUTPUT CURRENT I
OUT
(mA)
Impala Linear Corporation
ILC7070 1.1
(408) 574-3939
www.impalalinear.com
Oct 1999
4
SOT-23 CMOS LDO Regulator with Shutdown
Electrical Characteristics
General conditions for all curves
OUTPUT VOLTAGE vs TEMPERATURE
ILC7070HCM-50
5.02
I
OUT
= 10mA
V
IN
= 6.0V
I
OUT
= 10mA
OUTPUT VOLTAGE vs TEMPERATURE
ILC7070HCM-30
3.01
OUTPUT VOLTAGE V
OUT
(V)
V
IN
= 4.0V
3.00
2.99
OUTPUT VOLTAGE V
OUT
(V)
5.01
5.00
4.99
40mA
2.98
2.97
2.96
2.95
2.94
-40
-20
0
20
40
60
80
100
40mA
4.98
4.97
4.96
4.95
-40
-20
0
20
40
60
80
100
T
opr
(°C)
T
opr
(°C)
LINE TRANSIENT RESPONSE
ILC7070HCM-50
8.0
7.5
7.0
6.5
Input Voltage
I
OUT
= 1mA
8.0
7.5
LINE TRANSIENT RESPONSE
ILC7070HCM-50
I
OUT
= 10mA
Input Voltage
7.0
6.5
(V)
6.0
5.5
Output Voltage
5.0
4.5
4.0
-1
0
1
2
3
(V)
6.0
5.5
Output Voltage
5.0
4.5
4.0
-1
0
1
2
3
TIME (ms)
TIME (ms)
Impala Linear Corporation
ILC7070 1.1
(408) 574-3939
www.impalalinear.com
Oct 1999
5
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