NJM7900
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1
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Ver.2012-05-30
1. COMMON
2. IN
3. OUT
3-TERMINAL NEGATIVE VOLTAGE REGULATOR
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM7900 series of Monolithic 3-Terminal Negative Voltage
Regulators are constructed using the New JRC Planar epitaxial
process. These negative regulators are intended as complements
to the popular NJM7800 series of positive voltage regulators, and
they are available in the same voltage options from –5 to –24V.
The NJM7900 series employ internal current limiting, safe 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
• Output Capacitor recommended electrolytic capacitor
• Package Outline TO-220F
• Bipolar Technology
■ EQUIVALENT CIRCUIT
NJM7900FA
(note) The radiation fin is connected to Pin 2.
NJM7900
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2
-Ver.2012-05-30
■ ABSOLUTE MAXIMUM RATINGS (Ta=25ºC)
PARAMETER SYMBOL MAXIMUM RATINGS UNIT
Input Voltage VIN
7905 to 7909
7912 to 7915
7918 to 7924
-35
-35
-40
V
Power Dissipation PD 16(TC≤70ºC) W
Operating Junction Temperature Tj -40 to +150 ºC
Operating Temperature Range Topr -40 to +85 ºC
Storage Temperature Range Tstg -40 to +150 ºC
■ THERMAL CHARACTERISTICS
Junction-to-Ambient Temperature θja 60
Thermal Resistance
Junction-to-case θjc 5
ºC/W
■ ELECTRICAL CHARACTERISTICS (Tj=25ºC, CIN=2.2µF, CO=1.0µF)
Measurement is to be conduced in pulse testing
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
NJM7905FA
Output Voltage VO VIN=-10V, IO=0.5A -4.8 -5.0 -5.2 V
Line Regulation ∆VO - VIN VIN=-7 to -25V, IO=0.5A - 5 50 mV
Load Regulation ∆VO - IO VIN=-10V, IO=0.005 to 1.5A - 50 80 mV
Quiescent Current IQ VIN=-10V, IO=0mA - 2.2 5.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-10V, IO=5mA - -0.4 - mV/ºC
Ripple Rejection RR VIN=-10V, IO=0.5A, ein=2VP-P, f=120Hz 54 60 - dB
Output Noise Voltage VNO VIN=-10V, IO=0.5A , BW=10Hz to 100kHz, - 100 - µV
NJM7906FA
Output Voltage VO VIN=-11V, IO=0.5A -5.75 -6.0 -6.25 V
Line Regulation ∆VO - VIN VIN=-8 to -25V, IO=0.5A - 5 60 mV
Load Regulation ∆VO - IO VIN=-11V, IO=0.005 to 1.5A - 50 90 mV
Quiescent Current IQ VIN=-11V, IO=0mA - 2.2 5.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-11V, IO=5mA - -0.5 - mV/ºC
Ripple Rejection RR VIN=-11V, IO=0.5A, ein=2VP-P, f=120Hz 54 60 - dB
Output Noise Voltage VNO VIN=-11V, IO=0.5A , BW=10Hz to 100kHz, - 110 - µV
NJM7900
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3
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Ver.2012-05-30
■ ELECTRICAL CHARACTERISTICS (Tj=25ºC, CIN=2.2µF, CO=1.0µF)
Measurement is to be conducted in pulse testing.
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
NJM7908FA
Output Voltage VO VIN=-14V, IO=0.5A -7.7 -8.0 -8.3 V
Line Regulation ∆VO - VIN VIN=-10.5 to -25V, IO=1.5A - 8 80 mV
Load Regulation ∆VO - IO VIN=-14V, IO=0.005 to 0.5A - 60 110 mV
Quiescent Current IQ VIN=-14V, IO=0mA - 2.2 5.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-14V, IO=5mA - -0.7 - mV/ºC
Ripple Rejection RR VIN=-14V, IO=0.5A, ein=2VP-P, f=120Hz 54 60 - dB
Output Noise Voltage VNO VIN=-14V, IO=0.5A , BW=10Hz to 100kHz, - 130 - µV
NJM7909FA
Output Voltage VO VIN=-15V, IO=0.5A -8.65 -9.0 -9.35 V
Line Regulation ∆VO - VIN VIN=-11.5 to -25V, IO=0.5A - 8 90 mV
Load Regulation ∆VO - IO VIN=-15V, IO=0.005 to 1.5A - 60 120 mV
Quiescent Current IQ VIN=-15V, IO=0mA - 2.2 5.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-15V, IO=5mA - -0.8 - mV/ºC
Ripple Rejection RR VIN=-15V, IO=0.5A, ein=2VP-P, f=120Hz 54 59 - dB
Output Noise Voltage VNO VIN=-15V, IO=0.5A , BW=10Hz to 100kHz, - 150 - µV
NJM7912FA
Output Voltage VO VIN=-19V, IO=0.5A -11.5 -12.0 -12.5 V
Line Regulation ∆VO - VIN VIN=-14.5 to –30V, IO=0.5A - 3 120 mV
Load Regulation ∆VO - IO VIN=-19V, IO=0.005 to 1.5A - 60 150 mV
Quiescent Current IQ VIN=-19V, IO=0mA - 2.7 6.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-19V, IO=5mA - -0.4 - mV/ºC
Ripple Rejection RR VIN=-19V, IO=0.5A, ein=2VP-P, f=120Hz 54 68 - dB
Output Noise Voltage VNO VIN=-19V, IO=0.5A , BW=10Hz to 100kHz, - 150 - µV
NJM7915FA
Output Voltage VO VIN=-23V, IO=0.5A -14.4 -15.0 -15.6 V
Line Regulation ∆VO - VIN VIN=-17.5 to –30V, IO=0.5A - 3 150 mV
Load Regulation ∆VO - IO VIN=-23V, IO=0.005 to 1.5A - 60 180 mV
Quiescent Current IQ VIN=-23V, IO=0mA - 2.7 6.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-23V, IO=5mA - -0.5 - mV/ºC
Ripple Rejection RR VIN=-23V, IO=0.5A, ein=2VP-P, f=120Hz 54 67 - dB
Output Noise Voltage VNO VIN=-23V, IO=0.5A , BW=10Hz to 100kHz, - 170 - µV
NJM7900
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4
-Ver.2012-05-30
■ ELECTRICAL CHARACTERISTICS (Tj=25ºC, CIN=2.2µF, CO=1.0µF)
Measurement is to be conducted in pulse testing.
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
NJM7918FA
Output Voltage VO VIN=-27V, IO=0.5A -17.3 -18.0 -18.7 V
Line Regulation ∆VO - VIN VIN=-21 to –33V, IO=0.5A - 4 180 mV
Load Regulation ∆VO - IO VIN=-27V, IO=0.005 to 1.5A - 60 210 mV
Quiescent Current IQ VIN=-27V, IO=0mA - 2.7 6.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-27V, IO=5mA - -0.6 - mV/ºC
Ripple Rejection RR VIN=-27V, IO=0.5A, ein=2VP-P, f=120Hz 54 66 - dB
Output Noise Voltage VNO VIN=-27V, IO=0.5A , BW=10Hz to 100kHz, - 200 - µV
NJM7924FA
Output Voltage VO VIN=-33V, IO=0.5A -23.0 -24.0 -25.0 V
Line Regulation ∆VO - VIN VIN=-27 to –38V, IO=0.5A - 5 240 mV
Load Regulation ∆VO - IO VIN=-33V, IO=0.005 to 1.5A - 60 270 mV
Quiescent Current IQ VIN=-33V, IO=0mA - 2.7 6.0 mA
Average Temperature
Coefficient of Output Voltage ∆VO/∆T VIN=-33V, IO=5mA - -0.8 - mV/ºC
Ripple Rejection RR VIN=-33V, IO=0.5A, ein=2VP-P, f=120Hz 54 64 - dB
Output Noise Voltage VNO VIN=-33V, IO=0.5A , BW=10Hz to 100kHz, - 300 - µV
NJM7900
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5
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Ver.2012-05-30
■ 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
RR=20log10 ⎟
⎠
⎞
⎜
⎝
⎛
o
in
e
e [dB]
2. Ripple Rejection
IQ = IIN - IO
NJM7900
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6
-Ver.2012-05-30
■ TYPICAL CHARACTERISTICS
NJM7900
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7
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Ver.2012-05-30
■ TYPICAL CHARACTERISTICS
[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.
