Impala Linear Corporation
ILC7362
SOT-23 CMOS Negative LDO
General Description
100mA negative LDO in a SOT-23 package.
This CMOS device regulates a negative supply down
to a fixed voltage level at ±2% accuracy.
It offers exceptional LDO performance of 120mV
dropout at 50mA current levels.
The device also comes in a 3-lead SOT-89 package,
for a number of voltage and current offerings.
Features
u
All-CMOS design in SOT-23 and SOT-89 packages
gives optimal size and power performance
u
±2% precision outputs
u
3µA of Iq
u
Package and Voltage options allow:
100mA -5V Regulator
50mA -3V Regulator
100mA -5V to -3V Convertor
50mA -5V to -3V Convertor
Applications
u
GAsFET bias supply
u
Battery-powered Equipment
u
Reference voltage sources
u
Portable Cameras and Video Recorders
u
Power Failure Detection
u
PDAs
Block Diagram
V
DD
(GND)
Ordering Information*
ILC7362CP-50
ILC7362CP-30
ILC7362CM-50
-
100mA -5.0V Regulator in SOT-89
100mA -3.0V Regulator in SOT-89
50mA -5.0V Regulator in SOT-23
50mA -3.0V Regulator in SOT-23
REFERENCE VOLTAGE
SOURCE
ILC7362CM-30
+
-V
IN
-V
OUT
Pin-Package Configurations
V
DD
2
* Standard product offering comes in tape & reel, quantity 3000
per reel, orientation right for SOT-23, quantity 1000 per reel,
orientation right for SOT-89.
SOT-89
(TOP VIEW)
1
2
3
SOT-23
(TOP VIEW)
1
3
-V
OUT
-V
IN
-V
OUT
V
DD
-V
IN
Impala Linear Corporation
1
ILC7362 SOT-23 CMOS Negative LDO
Absolute Maximum Ratings (T
A
=25°C)
Parameter
Input Voltage
Output Current
Output Voltage
Continuous Total
Power Dissipation
SOT-23
SOT-89
T
opr
T
stg
Symbol
V
IN
I
OUT
V
OUT
P
d
Ratings
-12
200
-V
DD
-0.3~V
IN
+03
150
500
-30~+80
-40~+125
Units
V
mA
V
mW
Operating Ambient Temperature
Storage Temperature
°C
°C
Note : Iout
(max)
< Pd
(max)
/(Vin-Vout)
Electrical Characteristics ILC7362CP-50
T
A
=25°C
Parameter
Output Voltage
Maximum Output Current
Load Stability
Input/Output
Voltage Differential
Supply Current
Input Stability
Symbol
V
OUT
I
OUT
max
∆V
OUT
V
dif
Conditions
I
OUT
=20mA, V
IN
=-7.0V
V
IN
=-7.0V, V
OUT
≥-4.5V
V
IN
=-7.0V, 1mA≤I
OUT
≤50mA
I
OUT
=50mA
I
OUT
=100mA
Min
-4.90
100
Typ
-5.0
Max
-5.10
Units
V
mA
40
120
380
3.0
0.1
80
300
600
7.0
0.3
mV
mV
I
SS
∆V
OUT
∆V
IN
•V
OUT
V
IN
∆V
OUT
∆T
opr
•V
OUT
V
IN
=-7.0V
I
OUT
=20mA
-7.0V≤V
IN
≤-10.0V
µA
%/V
Input Voltage
Output Voltage
Temperature Characteristics
10.0
I
OUT
=20mA
-30°C≤T
opr
≤80°C
±100
V
ppm/°C
Note:
1. V
OUT
means the output voltage when “V
OUT
-2.0V” is provided at the V
IN
pin while maintaining a certain I
OUT
value.
2. V
dif
is defined as “|V
IN
| - |V
OUT
|”.
3. I
OUT
max. = This is specified for SOT-89 package. For SOT-23, it is limited by continuous total power dissipation.
Impala Linear Corporation
2
Typical Performance Characteristics
General conditions for all curves; 4.7µF on output
OUTPUT VOLTAGE vs INPUT VOLTAGE
-3.2
OUTPUT VOLTAGE vs INPUT VOLTAGE
-3.2
ILC7362CM-30
OUTPUT VOLTAGE V
OUT
(V)
T
opr
=25°C
ILC7362CM-30
T
opr
=25°C
I
OUT
=1mA
OUTPUT VOLTAGE V
OUT
(V)
-3.0
I
OUT
=1mA
-2.8
-3.0
-2.8
40mA
-2.6
40mA
-2.6
-2.4
10mA
-2.4
10mA
-2.2
-2.5
-2.2
-2.5
-3.0
-3.5
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
-7.0
-7.5
INPUT VOLTAGE V
IN
(V)
INPUT VOLTAGE V
IN
(V)
OUTPUT VOLTAGE
VS
OUTPUT CURRENT
-3.2
OUTPUT VOLTAGE vs TEMPERATURE
-3.10
ILC7362CM-30
OUTPUT VOLTAGE V
OUT
(V)
V
IN
= -5.0V
ILC7362CM-30
V
IN
= -5.0V
OUTPUT VOLTAGE V
OUT
(V)
-3.1
T = 25°C
-3.0
-30°C
-3.06
I
OUT
=10mA
-3.02
-2.9
80°C
-2.98
40mA
-2.8
-2.94
-2.7
0
10
20
30
40
50
60
-2.90
-30
-20
-10
0
10
20
30
40
50
60
70
80
OUTPUT CURRENT (mA)
OPERATING TEMPERATURE (°C)
SUPPLY CURRENT VERSUS TEMPERATURE
2.62
2.60
ILC7362CM-30
V
IN
= -5.0V
SUPPLY CURRENT (µA)
2.58
2.56
2.54
2.52
2.50
2.48
2.46
2.42
2.40
-30
-20
-10
0
10
20
30
40
50
60
70
80
V
IN
= -4.0V
OPERATING TEMPERATURE (°C)
Impala Linear Corporation
4
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