µ
SLVS060K − JUNE 1976 − REVISED APRIL 2005
D 3-Terminal Regulators
D Output Current Up To 500 mA
D No External Components
D High Power-Dissipation Capability
D Internal Short-Circuit Current Limiting
D Output Transistor Safe-Area Compensation
µA79M05, µA79M08 . . . KTP PACKAGE
(TOP VIEW)
INPUT
µA79M05 . . . KC (TO-220) PACKAGE
(TOP VIEW)
INPUT
OUTPUT
INPUT
COMMON
OUTPUT
INPUT
COMMON
INPUT
µA79M05 . . . KCS (TO-220) PACKAGE
(TOP VIEW)
OUTPUT
INPUT
COMMON
description/ordering information
This series of fixed-negative-voltage 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
essentially make them 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.
ORDERING INFORMATION
TJ
0°C to 125°C
VO(NOM)
(V)
−5
ORDERABLE
PART NUMBER
PACKAGE†
PowerFLEX (KTP)
Reel of 3000
µA79M05CKTPR
TO-220 (KC)
Tube of 50
µA79M05CKC
TO-220, short shoulder (KCS)
Tube of 20
µA79M05CKCS
TOP-SIDE
MARKING
µA79M05C
µA79M05C
A79M05C
−8
PowerFLEX (KTP)
Reel of 3000
µA79M08CKTPR
µA79M08C
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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.
PowerFLEX is a trademark of Texas Instruments.
Copyright 2005, Texas Instruments Incorporated
! "#$ %!&
% "! "! '! ! !( !
%% )*& % "!+ %! !!$* $%!
!+ $$ "!!&
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
µ
SLVS060K − JUNE 1976 − REVISED APRIL 2005
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.
absolute maximum ratings over virtual junction temperature range (unless otherwise noted)†
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°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.
package thermal data (see Note 1)
PowerFLEX (KTP)
High K, JESD 51-5
θJC
19°C/W
TO-220 (KC/KCS)
High K, JESD 51-5
17°C/W
PACKAGE
BOARD
θJA
28°C/W
19°C/W
θJP‡
1.4°C/W
3°C/W
NOTE 1: Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
‡ For packages with exposed thermal pads, such as QFN, PowerPAD, or PowerFLEX, θJP is defined as the thermal resistance between the die
junction and the bottom of the exposed pad.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
µ
SLVS060K − JUNE 1976 − REVISED APRIL 2005
recommended operating conditions
VI
Input voltage
IO
TJ
Output current
MIN
MAX
µA79M05C
−7
−25
µA79M08C
−10.5
−25
Operating virtual junction temperature
0
UNIT
V
500
mA
125
°C
electrical characteristics at specified virtual junction temperature, VI = −10 V, IO = 350 mA, TJ = 25°C
(unless otherwise noted)
µA79M05C
TEST CONDITIONS†
PARAMETER
Output voltage
VI = −7 V to −25 V,
Input voltage regulation
VI = −7 V to −25 V
VI = −8 V to −18 V
Ripple rejection
VI = −8 V to −18 V,
f = 120 Hz
Output voltage regulation
IO = 5 mA to 500 mA
IO = 5 mA to 350 mA
Temperature coefficient
of output voltage
IO = 5 mA,
Output noise voltage
f = 10 Hz to 100 kHz
IO = 5 mA to 350 mA
IO = 100 mA,
IO = 300 mA
TJ = 0°C to 125°C
TJ = 0°C to 125°C
MIN
TYP
MAX
−4.8
−5
−5.2
−4.75
−5.25
7
50
3
30
54
100
mV
−0.4
mV/°C
125
µV
1.1
Bias current
1
Bias current change
VI = −8 V to −18 V,
IO = 5 mA to 350 mA,
Short-circuit output current
VI = −30 V
mV
dB
60
50
Dropout voltage
V
50
75
TJ = 0°C to 125°C
UNIT
TJ = 0°C to 125°C
TJ = 0°C to 125°C
V
2
mA
0.4
0.4
140
mA
mA
Peak output current
0.65
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
µ
SLVS060K − JUNE 1976 − REVISED APRIL 2005
electrical characteristics at specified virtual junction temperature, VI = −19 V, IO = 350 mA, TJ = 25°C
(unless otherwise noted)
µA79M08C
TEST CONDITIONS†
PARAMETER
Output voltage
VI = −10.5 V to −25 V,
Input voltage regulation
VI = −10.5 V to −25 V
VI = −11 V to −21 V
Ripple rejection
VI = −11.5 V to −21.5 V,
f = 120 Hz
Output voltage regulation
IO = 5 mA to 500 mA
IO = 5 mA to 350 mA
Temperature coefficient
of output voltage
IO = 5 mA,
Output noise voltage
Dropout voltage
IO = 5 mA to 350 mA
IO = 100 mA,
IO = 300 mA
TJ = 0°C to 125°C
TJ = 0°C to 125°C
MIN
TYP
MAX
−7.7
−8
−8.3
−7.6
−8.4
8
80
4
50
V
mV
50
54
dB
59
90
160
mV
60
TJ = 0°C to 125°C
UNIT
−0.6
mV/°C
f = 10 Hz to 100 kHz
200
µV
IO = 5 mA
1.1
Bias current
1
Bias current change
VI = −10.5 V to −25 V,
IO = 5 mA to 350 mA,
Short-circuit output current
VI = −30 V
TJ = 0°C to 125°C
TJ = 0°C to 125°C
V
2
mA
0.4
0.4
140
mA
mA
Peak output current
0.65
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
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
4-Feb-2021
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
UA79M05CKCS
ACTIVE
TO-220
KCS
3
50
RoHS & Green
SN
N / A for Pkg Type
0 to 125
UA79M05C
UA79M05CKVURG3
ACTIVE
TO-252
KVU
3
2500
RoHS & Green
SN
Level-3-260C-168 HR
0 to 125
79M05C
UA79M08CKVURG3
ACTIVE
TO-252
KVU
3
2500
RoHS & Green
SN
Level-3-260C-168 HR
0 to 125
79M08C
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of