HE2021
series
200mA Low Power LDO
Features
Low power consumption
Low voltage drop
Low temperature coefficient
High input voltage (up to 35V)
Output voltage accuracy: tolerance
±1%
TO92、SOT23 and SOT89 package
Voltage drop:50mV@10mA
PSRR:60dB@KHz
Applications
Battery-powered equipment
Communication equipment
technology ensures low voltage drop and low
quiescent current. Although designed primarily as
fixed voltage regulators, these devices can be
used with external components to obtain variable
voltages and currents.
Audio/Video equipment
General Description
The
HE2021
series is a set of three-terminal low
power high voltage regulators implemented in
CMOS technology. They allow input voltages as
high as 35V. They are available with several fixed
output voltages ranging from 3.0V to 5.0V. CMOS
Selection Table
Part No.
HE2021Axx
Output Voltage
2.5V
3.0V
3.3V
3.6V
4.4V
5.0V
Package
TO92
SOT89
SOT23-3L
SOT23-5L
Marking
HE2021Axx
HE2021Axx
HE2021Axx
HE2021Axx
HE2021Axx
XXH (for TO92)
HEXXH
(for SOT89)
XXH(for SOT23-3)
XXH(for SOT23-5)
Order Information
HE2021A①②③④⑤
Designator
1
②
③
④
⑤
Symbol
Integer
H
T
P
M
M5
R
G
Description
Output Voltage(3.0~5.0V)
Standard
Package:TO-92
Package:SOT89
Package:SOT23-3
Package:SOT23-5
RoHS / Pb Free
Halogen Free
Ver1.2
1
Aug 3,2014
HE2021
series
200mA Low Power LDO
Block Diagram
Pin Assignment
Absolute Maximum Ratings
Supply Voltage ................................-0.3V to 35V
Operating Temperature .................-40℃ to 85℃
Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum
Ratings” may cause substantial damage to the device. Functional operation of this device at other
conditions beyond those listed in the specification is not implied and prolonged exposure to extreme
conditions may affect device reliability.
Storage Temperature ..................-50℃ to 125℃
Thermal Information
Symbol
θ
JA
Parameter
Thermal Resistance (Junction to
Ambient) (Assume no ambient
airflow, no heat sink)
Power Dissipation
Package
SOT23
TO92
SOT89
SOT23
TO92
SOT89
Max.
500
200
200
0.20
0.50
0.50
Unit
℃/W
℃/W
℃/W
W
W
W
P
D
Note: P
D
is measured at Ta= 25℃
Ver1.2
2
Aug 3,2014
HE2021
series
200mA Low Power LDO
Electrical Characteristics
HE2021A30, +3.0V Output Type
Symbol
V
OUT
I
OUT
ΔV
OUT
V
DIF
ISS
Parameter
Output Voltage
Output Current
Load Regulation
Voltage Drop(Note)
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
8V
6V
8V
-
8V
-
-
8V
Conditions
I
OUT
=10mA
-
1mA≤I
OUT
≤20mA
I
OUT
=1mA,
ΔV
OUT
=2%
No load
4V≤V
IN
≤37V
I
OUT
=1mA
-
IOUT=10mA
0℃<Ta<100℃
Min.
Typ.
3.00
200
40
10
2.0
0.3
-
±0.12
Max.
Unit
V
mA
mV
mV
μA
%/V
V
mV/℃
2.97
-
-
-
-
-
-
-
3.03
-
60
-
3.0
-
35
-
V
OUT
V
IN
V
OUT
V
IN
V
OUT
Ta
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a
1%
change in the output voltage from the value at V
IN
= V
OUT
+2V with a fixed load.
HE2021A33, +3.3V Output Type
Symbol
V
OUT
I
OUT
ΔV
OUT
V
DIF
ISS
Parameter
Output Voltage
Output Current
Load Regulation
Voltage Drop(Note)
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
8V
6.3V
8V
-
8V
-
-
8V
Conditions
I
OUT
=10mA
-
1mA≤I
OUT
≤20mA
I
OUT
=1mA,
ΔV
OUT
=2%
No load
4.5V≤V
IN
≤37V
I
OUT
=1mA
-
IOUT=10mA
0℃<Ta<100℃
Min.
Typ.
3.300
200
40
10
2.0
0.3
-
±0.12
Max.
Unit
V
mA
mV
mV
μA
%/V
V
mV/℃
3.267
-
-
-
-
-
-
-
3.333
-
60
-
3.0
-
35
-
V
OUT
V
IN
V
OUT
V
IN
V
OUT
Ta
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a
1%
change in the output voltage from the value at V
IN
= V
OUT
+2V with a fixed load.
Ver1.2
3
Aug 3,2014
HE2021
series
200mA Low Power LDO
HE2021A36, +3.6V Output Type
Symbol
V
OUT
I
OUT
ΔV
OUT
V
DIF
ISS
Parameter
Output Voltage
Output Current
Load Regulation
Voltage Drop(Note)
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
8V
6.6V
8V
-
8V
-
-
8V
Conditions
I
OUT
=10mA
-
1mA≤I
OUT
≤20mA
I
OUT
=1mA,
ΔV
OUT
=2%
No load
4.6V≤V
IN
≤37V
I
OUT
=1mA
-
IOUT=10mA
0℃<Ta<100℃
Min.
Typ.
3.600
200
40
10
2.0
0.3
-
±0.12
Max.
Unit
V
mA
mV
mV
μA
%/V
V
mV/℃
3.564
-
-
-
-
-
-
-
3.636
-
60
-
5.0
-
35
-
V
OUT
V
IN
V
OUT
V
IN
V
OUT
Ta
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a
1%
change in the output voltage from the value at V
IN
= V
OUT
+2V with a fixed load.
HE2021A44, +4.4V Output Type
Symbol
V
OUT
I
OUT
ΔV
OUT
V
DIF
ISS
Parameter
Output Voltage
Output Current
Load Regulation
Voltage Drop(Note)
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
8V
7.4V
8V
-
8V
-
-
8V
Conditions
I
OUT
=10mA
-
1mA≤I
OUT
≤20mA
I
OUT
=1mA,
ΔV
OUT
=2%
No load
5.4V≤V
IN
≤38V
I
OUT
=1mA
-
IOUT=10mA
0℃<Ta<100℃
Min.
Typ.
4.400
200
40
10
2.0
0.3
-
±0.12
Max.
Unit
V
mA
mV
mV
μA
%/V
V
mV/℃
4.356
-
-
-
-
-
-
-
4.444
-
60
-
5.0
-
V
OUT
V
IN
V
OUT
V
IN
35
-
V
OUT
Ta
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a
1%
change in the output voltage from the value at V
IN
= V
OUT
+2V with a fixed load.
Ver1.2
4
Aug 3,2014
HE2021
series
200mA Low Power LDO
HE2021A50, +5.0V Output Type
Symbol
V
OUT
I
OUT
ΔV
OUT
V
DIF
ISS
Parameter
Output Voltage
Output Current
Load Regulation
Voltage Drop(Note)
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
8V
8V
8V
-
8V
-
-
8V
Conditions
I
OUT
=10mA
-
1mA≤I
OUT
≤20mA
I
OUT
=1mA,
ΔV
OUT
=2%
No load
6V≤V
IN
≤39V
I
OUT
=1mA
-
IOUT=10mA
0℃<Ta<100℃
Min.
Typ.
5.00
200
40
10
2.0
0.3
-
±0.12
Max.
Unit
V
mA
mV
mV
μA
%/V
V
mV/℃
4.95
-
-
-
-
-
-
-
5.05
-
60
-
5.0
-
V
OUT
V
IN
V
OUT
V
IN
35
-
V
OUT
Ta
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a
1%
change in the output voltage from the value at V
IN
= V
OUT
+2V with a fixed load.
Application Circuits
Basic Circuits
H22Ax
E01x
Ver1.2
5
Aug 3,2014
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