NJM7900
-1-
Ver.2003-09-24
3-TERMINAL NEGATIVE VOLTAGE REGULATOR
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM7900 series of Monolithic 3-Terminal Negative
Regulators is constructed using the New JRC Planar epitaxial
process. These negative regulators are intended as complements
to the popular NJM 7800 series of positive voltage regulators, and
they are available in the same voltage options from -5 to -24V. The
7900 series employ internal current -limiting, sufe-area protection,
and thermal shutdown, making the virtually indestructible.
■ FEATURES
• Internal Short Circuit Current Limit
• Internal Thermal Overload Protection
• Excellent Ripple Rejection
• Guarantee'd 1.5A Output Current
• Package Outline TO-220F
• Bipolar Technology
■ EQUIVALENT CIRCUIT
1. COMMON
2. IN
3. OUT
(note) The radiation fin is connected Pin 2.
NJM7900FA
NJM7900
- 2 -
Ver.2003-09-24
■ ABSOLUTE MAXIMUM RATINGS
(T
a
=25°C)
PARAMETER SYMBOL MAXIMUM RATINGS UNIT
Input Voltage V
IN
7905 to 7909
7912 to 7915
7918 to 7924
-35
-35
-40
V
Storage Temperature Range T
stg
-40 to +150 ºC
Operating Temperature Range
Operating Junction Temperature
Operating Junction Temperature
T
j
T
opr
-40 to +150
-40 to +85
ºC
Power Dissipation P
D
16 (T
C
≤45ºC) W
■ THERMAL CHARACTERISTICS
Junction-to-Ambient Temperature θja 60
Thermal Resistance
Junction-to-Case θjc 5
ºC/W
NJM7900
-
3
-
Ver.2003-09-24
■ ELECTRICAL CHARACTERISTICS (Tj=25ºC, C
IN
=2.2µF, C
O
=1.0µF)
Measurement is to be conducted in pulse testing.
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
NJM7905FA
Output Voltage V
O
V
IN
=-10V, I
O
=0.5A -4.8 -5.0 -5.2 V
Quiescent Current I
Q
V
IN
=-10V, I
O
=0mA - 2.2 5.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-10V, I
O
=0.005 to 1.5A - 50 80 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-7 to -25V, I
O
=0.5A - 5 50 mV
Ripple Rejection RR V
IN
=-10V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 60 - dB
Output Noise Voltage V
NO
V
IN
=-10V, I
O
=0.5A , BW=10Hz to 100kHz - 100 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-10V, I
O
=5mA - -0.4 - mV/ºC
NJM7906FA
Output Voltage V
O
V
IN
=-11V, I
O
=0.5A -5.75 -6.0 -6.25 V
Quiescent Current I
Q
V
IN
=-11V, I
O
=0mA - 2.2 5.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-11V, I
O
=0.005 to 1.5A - 50 90 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-8 to -25V, I
O
=0.5A - 5 60 mV
Ripple Rejection RR V
IN
=-11V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 60 - dB
Output Noise Voltage V
NO
V
IN
=-11V, I
O
=0.5A , BW=10Hz to 100kHz - 110 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-11V, I
O
=5mA - -0.5 - mV/ºC
NJM7908FA
Output Voltage V
O
V
IN
=-14V, I
O
=0.5A -7.7 -8.0 -8.3 V
Quiescent Current I
Q
V
IN
=-14V, I
O
=0mA - 2.2 5.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-14V, I
O
=0.005 to 1.5A - 60 110 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-10.5 to -25V, I
O
=0.5A -54 8 80 mV
Ripple Rejection RR V
IN
=-14V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz - 60 - dB
Output Noise Voltage V
NO
V
IN
=-14V, I
O
=0.5A , BW=10Hz to 100kHz - 130 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-14V, I
O
=5mA -.0.7 mV/ºC
NJM7909FA
Output Voltage V
O
V
IN
=-15V, I
O
=0.5A -8.65 -9.0 -9.35 V
Quiescent Current I
Q
V
IN
=-15V, I
O
=0mA - 2.2 5.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-15V, I
O
=0.005 to 1.5A - 60 120 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-11.5 to -25V, I
O
=0.5A - 8 90 mV
Ripple Rejection RR V
IN
=-15V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 59 - dB
Output Noise Voltage V
NO
V
IN
=-15V, I
O
=0.5A , BW=10Hz to 100kHz - 150 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-15V, I
O
=5mA - -0.8 - mV/ºC
NJM7912FA
Output Voltage V
O
V
IN
=-19V, I
O
=0.5A -11.5 -12.0 -12.5 V
Quiescent Current I
Q
V
IN
=-19V, I
O
=0mA - 2.7 6.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-19, V, I
O
=0.005 to 1.5A - 60 150 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-14.5 to -30V, I
O
=0.5A - 3 120 mV
Ripple Rejection RR V
IN
=-19V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 68 - dB
Output Noise Voltage V
NO
V
IN
=-19V, I
O
=0.5A , BW=10Hz to 100kHz - 150 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-19V, I
O
=5mA - -0.4 - mV/ºC
NJM7900
- 4 -
Ver.2003-09-24
■ ELECTRICAL CHARACTERISTICS (Tj=25ºC, C
IN
=2.2µF, C
O
=1.0µF)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
NJM7915FA
Output Voltage V
O
V
IN
=-23V, I
O
=0.5A -14.4 -15.0 -15.6 V
Quiescent Current I
Q
V
IN
=-23V, I
O
=0mA - 2.7 6.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-23V, I
O
=0.005 to 1.5A - 60 180 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-17.5 to -30V, I
O
=0.5A - 3 150 mV
Ripple Rejection RR V
IN
=-23V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 67 - dB
Output Noise Voltage V
NO
V
IN
=-23V, I
O
=0.5A , BW=10Hz to 100kHz - 170 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-23V, I
O
=5mA - -0.5 - mV/ºC
NJM7918FA
Output Voltage V
O
V
IN
=-27V, I
O
=0.5A -17.3 -18.0 -18.7 V
Quiescent Current I
Q
V
IN
=-27V, I
O
=0mA - 2.7 6.8 mA
Load Regulation ∆V
O
- I
O
V
IN
=-27V, I
O
=0.005 to 1.5A - 60 210 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-21 to -33V, I
O
=0.5A - 4 180 mV
Ripple Rejection RR V
IN
=-27V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz 54 66 - dB
Output Noise Voltage V
NO
V
IN
=-27V, I
O
=0.5A , BW=10Hz to 100kHz - 200 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-27V, I
O
=5mA - -0.6 - mV/ºC
NJM7924FA
Output Voltage V
O
V
IN
=-33V, I
O
=0.5A -23.0 -24.0 -25.0 V
Quiescent Current I
Q
V
IN
=-33V, I
O
=0mA - 2.7 6.0 mA
Load Regulation ∆V
O
- I
O
V
IN
=-33V, I
O
=0.005 to 1.5A - 60 270 mV
Line Regulation ∆V
O
- V
IN
V
IN
=-27 to -38V, I
O
=0.5A 54 5 240 mV
Ripple Rejection RR V
IN
=-33V, I
O
=0.5A, e
in
=2V
P-P
, f=120Hz - 64 - dB
Output Noise Voltage V
NO
V
IN
=-33V, I
O
=0.5A , BW=10Hz to 100kHz - 300 - µV
Average Temperature
Coefficient of Output Voltage ∆V
O
/∆T V
IN
=-33V, I
O
=5mA -0.8 mV/ºC
NJM7900
-
5
-
Ver.2003-09-24
■ TEST CIRCUIT
1. Output Voltage, Line Regulation, Load Regulation,
Quiescent Current, Average Temperature Coefficient of
Output Voltage, Output Noise Voltage
■ POWER DISSIPATION VS. AMBIENT TEMPERATURE
NJM7900FA
NJM7800LA/DL1A
RR=20log
10
o
in
e
e
[dB]
2. Ripple Rejection
I
Q
=I
IN
-I
O
NJM7900
-
6
-
Ver.2003-09-24
■ TYPICAL CHARACTERISTICS NJM7912 Output Voltage
NJM7900 Output Characteristics vs. Low Input Voltage
NJM7905/15/24 NJM7900 Series
Load Characteristics Short Circuit Output Current
NJM7905/12/24 Output Voltage NJM7905/15/24 Ripple Rejection
vs. Junction Temperature vs. Frequency
NJM7900
-7-
Ver.2003-09-24
■ TYPICAL CHARACTERISTICS
NJM7905 Dropout Characteristics NJM7905 Output Voltage vs. Temperature
Quiescent Current vs. Input Voltage
[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.
