NJU7211 Series
-1-
Ver.2003-07-23
C-MOS 3-TERMINAL NEGATIVE VOLTAGE REGULATOR
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
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 ■ TERMINAL DESCRIPTION
• Low Operating Current (19µA typ.)
• Wide Operating Voltage Range
• Low Dropout Voltage
(∆VIO < 0.6V -3.0V output, IOUT = 20mA)
(∆VIO < 0.6V -5.0V output, IOUT = 40mA)
• Small Temperature Coefficient of Output Voltage
• Package Outline (TO-92/SOT-89)
• C-MOS Technology
■ OUTPUT VOLTAGE LINE-UP
Output Voltage TO-92 Type SOT-89 Type
-2.0V NJU7211L20 NJU7211U20
-3.0V NJU7211L30 NJU7211U30
-4.0V NJU7211L40 NJU7211U40
-5.0V NJU7211L50 NJU7211U50
■ EQUIVALENT CIRCUIT
No. Description
1 Output
2 GND
3 Input
VREF
+
-
1
2
3
VOUT
VI
N
GND
NJU7211L(TO-92) NJU7211U(SOT-89)
NJU7211 Series
- 2 - Ver.2003-07-23
■ ABSOLUTE MAXIMUM RATINGS (Ta = 25ºC)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN -14 V
Output Voltage VOUT GND+0.3 to VIN-0.3 V
Output Current IOUT 100 mA
Power Dissipation PD 500 (TO-92)
300 (SOT-89) mW
Operating Temperature Topr -25 to + 75 ºC
Storage Temperature Tstg -40 to +125 ºC
Soldering Temperature / Time Tsold 260ºC/10 sec -
■ ELECTRICAL CHARACTERISTICS
-2.0V Version （CIN = Co = 0.1µF, Ta = 25°C)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN = - 4.0V, IOUT = 10mA - 2.10 - 2.00 - 1.90 V
Dropout Voltage ∆VIO I
OUT = 20mA - 0.2 0.6 V
Input Voltage VIN - 12 - - V
Operating Current IQ V
IN = - 4.0V - 19 30 µA
Load Regulation ∆VOUT / ∆IOUT V
IN = - 4.0V, IOUT = 1～20mA - - 120 mV
Line Regulation ∆VOUT / (∆VIN･VOUT) VIN = - 3.0 ～ - 12V - 0.1 - %/V
-3.0V Version （CIN = Co = 0.1µF, Ta = 25°C)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN = - 5.0V, IOUT = 10mA - 3.15 - 3.00 - 2.85 V
Dropout Voltage ∆VIO I
OUT = 20mA - 0.2 0.6 V
Input Voltage VIN - 12 - - V
Operating Current IQ V
IN = - 5.0V - 19 30 µA
Load Regulation ∆VOUT / ∆IOUT V
IN = - 5.0V, IOUT = 1～20mA - 80 120 mV
Line Regulation ∆VOUT / (∆VIN･VOUT) VIN = - 4.0 ～ - 12V - 0.1 - %/V
-4.0V Version （CIN = Co = 0.1µF, Ta = 25°C)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN = - 6.0V, IOUT = 30mA - 5.25 - 5.00 - 4.75 V
Dropout Voltage ∆VIO I
OUT = 40mA - 0.3 0.6 V
Input Voltage VIN - 12 - - V
Operating Current IQ V
IN = - 6.0V - 19 30 µA
Load Regulation ∆VOUT / ∆IOUT V
IN = - 6.0V, IOUT = 1～40mA - - 120 mV
Line Regulation ∆VOUT / (∆VIN･VOUT) VIN = - 5.0 ～ - 12V - 0.1 - %/V
-5.0V Version （CIN = Co = 0.1µF, Ta = 25°C)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN = - 7.0V, IOUT = 30mA - 5.25 - 5.00 - 4.75 V
Dropout Voltage ∆VIO I
OUT = 40mA - 0.3 0.6 V
Input Voltage VIN - 12 - - V
Operating Current IQ V
IN = - 7.0V - 19 30 µA
Load Regulation ∆VOUT / ∆IOUT V
IN = - 7.0V, IOUT = 1～40mA - 80 120 mV
Line Regulation ∆VOUT / (∆VIN･VOUT) VIN = - 6.0 ～ - 12V - 0.1 - %/V
NJU7211 Series
-
3
-
Ver.2003-07-23
■ MEASUREMENT CIRCUIT
[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.
NJU7211
DC V
V
IN
V
OUT
GND
I
OUT
C
O
C
IN
