NJU7211 Series
C-MOS 3-TERMINAL NEGATIVE VOLTAGE REGULATOR
■
GENERAL DESCRIPTION
The
NJU7211 series
is a C-MOS 3-terminal negative voltage
regulator which contains internal precision voltage reference, error
amplifier, control transistor and output voltage setting resistor.
The regulation voltage is fixed by internal circuits and the following
line-up of different output voltage versions are available.
The
NJU7211 series
is suitable for battery operated items and
battery back-up systems because of low operating current and low
dropout voltage.
■
FEATURES
•
Low Operating Current
(19μA typ.)
•
Wide Operating Voltage Range
•
Low Dropout Voltage
(ΔV
IO
< 0.6V -3.0V output, I
OUT
= 20mA)
(ΔV
IO
< 0.6V -5.0V output, I
OUT
= 40mA)
•
Small Temperature Coefficient of Output Voltage
•
Package Outline
( SOT-89)
•
C-MOS Technology
■
OUTPUT VOLTAGE LINE-UP
Output Voltage
SOT-89 Type
-2.0V
NJU7211U20
-3.0V
NJU7211U30
-4.0V
NJU7211U40
-5.0V
NJU7211U50
■
PACKAGE OUTLINE
3
12
NJU7221U
(SOT-89)
■
TERMINAL DESCRIPTION
No.
Description
1
Output
2
GND
3
Input
■
EQUIVALENT CIRCUIT
GND
2
V
REF
-
+
V
IN
3
1
V
OUT
Ver.2007-02-14
-1-
NJU7211 Series
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Soldering Temperature / Time
SYMBOL
V
IN
V
OUT
I
OUT
P
D
T
opr
T
stg
T
sold
RATINGS
-14
GND+0.3 to V
IN
-0.3
100
300 (SOT-89)
-25 to + 75
-40 to +125
260ºC/10 sec
(T
a
= 25ºC)
UNIT
V
V
mA
mW
ºC
ºC
-
■
ELECTRICAL CHARACTERISTICS
-2.0V Version
PARAMETER
Output Voltage
Dropout Voltage
Input Voltage
Operating Current
Load Regulation
Line Regulation
SYMBOL
V
OUT
ΔV
IO
V
IN
I
Q
ΔV
OUT
/
ΔI
OUT
ΔV
OUT
/ (ΔV
IN
½V
OUT
)
CONDITION
V
IN
= - 4.0V, I
OUT
= 10mA
I
OUT
= 20mA
V
IN
= - 4.0V
V
IN
= - 4.0V, I
OUT
= 1½20mA
V
IN
= - 3.0
½
- 12V
（C
IN
= C
o
= 0.1μF, T
a
= 25°C)
MIN.
- 2.10
-
- 12
-
-
-
TYP.
- 2.00
0.2
-
19
-
0.1
MAX.
- 1.90
0.6
-
30
120
-
UNIT
V
V
V
μA
mV
%/V
-3.0V Version
PARAMETER
Output Voltage
Dropout Voltage
Input Voltage
Operating Current
Load Regulation
Line Regulation
SYMBOL
V
OUT
ΔV
IO
V
IN
I
Q
ΔV
OUT
/
ΔI
OUT
ΔV
OUT
/ (ΔV
IN
½V
OUT
)
CONDITION
V
IN
= - 5.0V, I
OUT
= 10mA
I
OUT
= 20mA
V
IN
= - 5.0V
V
IN
= - 5.0V, I
OUT
= 1½20mA
V
IN
= - 4.0
½
- 12V
（C
IN
= C
o
= 0.1μF, T
a
= 25°C)
MIN.
- 3.15
-
- 12
-
-
-
TYP.
- 3.00
0.2
-
19
80
0.1
MAX.
- 2.85
0.6
-
30
120
-
UNIT
V
V
V
μA
mV
%/V
-4.0V Version
PARAMETER
Output Voltage
Dropout Voltage
Input Voltage
Operating Current
Load Regulation
Line Regulation
SYMBOL
V
OUT
ΔV
IO
V
IN
I
Q
ΔV
OUT
/
ΔI
OUT
ΔV
OUT
/ (ΔV
IN
½V
OUT
)
CONDITION
V
IN
= - 6.0V, I
OUT
= 30mA
I
OUT
= 40mA
V
IN
= - 6.0V
V
IN
= - 6.0V, I
OUT
= 1½40mA
V
IN
= - 5.0
½
- 12V
（C
IN
= C
o
= 0.1μF, T
a
= 25°C)
MIN.
- 5.25
-
- 12
-
-
-
TYP.
- 5.00
0.3
-
19
-
0.1
MAX.
- 4.75
0.6
-
30
120
-
UNIT
V
V
V
μA
mV
%/V
-5.0V Version
PARAMETER
Output Voltage
Dropout Voltage
Input Voltage
Operating Current
Load Regulation
Line Regulation
SYMBOL
V
OUT
ΔV
IO
V
IN
I
Q
ΔV
OUT
/
ΔI
OUT
ΔV
OUT
/ (ΔV
IN
½V
OUT
)
CONDITION
V
IN
= - 7.0V, I
OUT
= 30mA
I
OUT
= 40mA
V
IN
= - 7.0V
V
IN
= - 7.0V, I
OUT
= 1½40mA
V
IN
= - 6.0
½
- 12V
（C
IN
= C
o
= 0.1μF, T
a
= 25°C)
MIN.
- 5.25
-
- 12
-
-
-
TYP.
- 5.00
0.3
-
19
80
0.1
MAX.
- 4.75
0.6
-
30
120
-
UNIT
V
V
V
μA
mV
%/V
-2-
Ver.2007-02-14
NJU7211 Series
■
MEASUREMENT CIRCUIT
V
IN
NJU7211
DC
C
IN
GND
V
OUT
V
C
O
I
OUT
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Ver.2007-02-14
-3-
Mouser Electronics
Authorized Distributor
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NJU7211U40-TE1 NJU7211U50-TE1 NJU7211U40 NJU7211U30-TE1 NJU7211U45 NJU7211U27 NJU7211U25
NJU7211U20 NJU7211U20-TE1 NJU7211U30 NJU7211U15 NJU7211U50 NJU7211U35
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