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µA79M00
SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS060E – JUNE 1976 – REVISED APRIL 2000
D
D
D
D
D
D
D
3-Terminal Regulators
Output Current up to 500 mA
No External Components
High Power-Dissipation Capability
Internal Short-Circuit Current Limiting
Output Transistor Safe-Area Compensation
Direct Replacements for Fairchild
µA79M00
Series
KC PACKAGE
(TOP VIEW)
OUTPUT
INPUT
COMMON
The INPUT terminal is in electrical contact with
the mounting base.
TO-220AB
description
This series of fixed-negative-voltage monolithic
integrated-circuit voltage regulators is designed
to complement the
µA78M00
series in a wide
range of applications. These applications include
on-card regulation for elimination of noise and
distribution problems associated with single-point
regulation. Each of these regulators delivers up to
500 mA of output current. The internal
current-limiting and thermal-shutdown features of
these regulators make them essentially immune
to overload. In addition to use as fixed-voltage
regulators, these devices can be used with
external components to obtain adjustable output
voltages and currents, and also as the
power-pass element in precision regulators.
The
µA79M00C
series is characterized for
operation over the virtual junction temperature
range of 0°C to 125°C.
OUTPUT
INPUT
COMMON
KTP PACKAGE
(TOP VIEW)
OUTPUT
INPUT
COMMON
The INPUT terminal is in electrical contact
with the mounting base.
OUTPUT
INPUT
COMMON
AVAILABLE OPTIONS
PACKAGED DEVICES
TJ
VO(NOM)
(V)
–5
–6
–8
0°C to 125°C
–12
–15
–20
–24
HEAT-SINK
MOUNTED
(KC)
µA79M05CKC
—
—
—
—
—
—
PLASTIC FLANGE
MOUNTED
(KTP)
µA79M05CKTP
µA79M06CKTP
µA79M08CKTP
µA79M12CKTP
µA79M15CKTP
µA79M20CKTP
µA79M24CKTP
CHIP
FORM
(Y)
µA79M05Y
µA79M06Y
µA79M08Y
µA79M12Y
µA79M15Y
µA79M20Y
µA79M24Y
The KTP package also is available in tape and reel. Add the suffix R to device type (e.g.,
µA79M05CKTPR).
Chip forms are tested at 25°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
©
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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1
µA79M00
SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS060E – JUNE 1976 – REVISED APRIL 2000
schematic
COMMON
4.5 kΩ
to 6.3 kΩ
1.7 kΩ
to 18 kΩ
OUTPUT
0.1
Ω
0.2
Ω
INPUT
Resistor values shown are nominal.
2
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µA79M00
SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS060E – JUNE 1976 – REVISED APRIL 2000
absolute maximum ratings over operating temperature range (unless otherwise noted)
†
µA79MxxC
Input voltage
Package thermal impedance,
θ
JA (see Notes 1 and 2)
impedance
Operating free-air, TA; case, TC; or virtual junction, TJ, temperature range
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
Storage temperature range, Tstg
µA79M20C, µA79M24C
All others
KC package
KTP package
–40
–35
22
28
0 to 150
260
–65 to 150
UNIT
V
°C/W
°C
°C
°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/
θ
JA. Operating at the absolute maximum TJ of 150°C can affect reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal-overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions
MIN
µA79M05C
µA79M06C
µA79M08C
Input voltage, VI
µA79M12C
µA79M15C
µA79M20C
µA79M24C
Output current, IO
Operating virtual junction temperature, TJ
0
–7
–8
–10.5
–14.5
–17.5
–23
–27
MAX
–25
–25
–25
30
–30
–35
–38
500
125
mA
°C
V
UNIT
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3
µA79M00
SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS060E – JUNE 1976 – REVISED APRIL 2000
electrical characteristics at specified virtual junction temperature, V
I
= –10 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
Temperature coefficient
of output voltage
Output noise voltage
Dropout voltage
Bias current
Bias current change
Short-circuit output current
Peak output current
VI = –8 V to –18 V,
IO = 5 mA to 350 mA,
VI = –30 V
TJ = 0°C to 125°C
TJ = 0°C to 125°C
140
0.65
VI = –7 V to –25 V
7
25 V,
VI = –7 V to –25 V
VI = –8 V to –18 V
VI = –8 V to –18 V,
,
f = 120 Hz
IO = 5 mA to 500 mA
IO = 5 mA to 350 mA
IO = 5 mA,
f = 10 Hz to 100 kHz
TJ = 0°C to 125°C
IO = 100 mA,
IO = 300 mA
TJ = 0°C to 125°C
50
54
60
75
50
–0.4
125
1.1
1
2
0.4
0.4
100
TEST CONDITIONS†
IO = 5 mA to 350 mA
µA79M05C
MIN
–4.8
TJ = 0°C to 125°C
–4.75
7
3
TYP
–5
MAX
–5.2
–5.25
50
30
UNIT
V
mV
dB
mV
mV/°C
µV
V
mA
mA
mA
A
† Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are
measured with a 2-µF capacitor across the input and a 1-µF capacitor across the output.
electrical characteristics at specified virtual junction temperature, V
I
= –11 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
Temperature coefficient
of output voltage
Output noise voltage
Dropout voltage
Bias current
Bias current change
Short-circuit output current
Peak output current
VI = –9 V to –25 V,
IO = 5 mA to 350 mA,
VI = –30 V
TJ = 0°C to 125°C
TJ = 0°C to 125°C
140
0.65
VI = –8 V to –25 V
8
25 V,
VI = –8 V to –25 V
VI = –9 V to –19 V
VI = –9 V to –19 V,
,
f = 120 Hz
IO = 5 mA to 500 mA
IO = 5 mA to 350 mA
IO = 5 mA,
f = 10 Hz to 100 kHz
TJ = 0°C to 125°C
IO = 100 mA,
IO = 300 mA
TJ = 0°C to 125°C
50
54
60
80
55
–0.4
150
1.1
1
2
0.4
0.4
120
TEST CONDITIONS†
IO = 5 mA to 350 mA
µA79M06C
MIN
–5.75
TJ = 0°C to 125°C
–5.7
7
3
TYP
–6
MAX
–6.25
–6.3
60
40
UNIT
V
mV
dB
mV
mV/°C
µV
V
mA
mA
mA
A
† Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are
measured with a 2-µF capacitor across the input and a 1-µF capacitor across the output.
4
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