Texas Instruments MC79L24CP, MC79L05ACLP Datasheet
1
2
3
4
8
7
6
5
OUTPUT
INPUT
†
INPUT
†
NC
NC
INPUT
†
INPUT
†
COMMON
D PACKAGE
(TOP VIEW)
NC–No internal connection
LP PACKAGE
(TOP VIEW)
†
Internally connected
OUTPUT
INPUT
COMMON
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011B – OCTOBER 1982 – REVISED FEBRUARY 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
D
3-Terminal Regulators
D
Output Current Up to 100 mA
D
No External Components Required
D
Internal Thermal-Overload Protection
D
Internal Short-Circuit Current Limiting
D
Direct Replacement for Motorola MC79L00
Series
D
Available in 5% or 10% Selections
description
This series of fixed negative-voltage integrated-circuit
voltage regulators is designed for a wide range of
applications. These include on-card regulation for
elimination of noise and distribution problems
associated with single-point regulation. In addition,
they can be used to control series pass elements to make high-current voltage-regulator circuits. One of these
regulators can deliver up to 100 mA of output current. The internal current-limiting and thermal-shutdown features
make them essentially immune to overload. When used as a replacement for a zener-diode and resistor combination,
these devices can provide an effective improvement in output impedance of two orders of magnitude, with lower bias
current.
The MC79L00C series is characterized for operation over the virtual junction temperature range of 0°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
NOMINAL
OUTPUT VOLTAGE TOLERANCE
T
J
OUTPUT
VOLTAGE
(V)
SMALL OUTLINE
(D)
PLASTIC CYLINDRICAL
(LP)
(V)
5% 10% 5% 10%
0°C to 125°C
–5
–12
–15
MC79L05ACD
‡
MC79L12ACD
‡
MC79L15ACD
–
MC79L12CD
MC79L15CD
MC79L05ACLP
‡
MC79L12ACLP
‡
MC79L15ACLP
§
–
MC79L12CLP
–
‡
This device is available taped and reeled. Add the suffix R to the device type (e.g., MC79L05ACDR).
§
This device is available taped and reeled or in ammo pack. Add the suffix M to the device type for ammo pack
(e.g., MC79L15ACLPM).
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.
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011B – OCTOBER 1982 – REVISED FEBRUARY 2000
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
equivalent schematic
OUTPUT
INPUT
COMMON
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Input voltage: MC79L05 –30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MC79L12, MC79L15 –35 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air, case, or virtual junction temperature 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Notes 1 and 2): D package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP package 196°C/W. . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–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 .
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 impact reliability.
2. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions
MIN MAX UNIT
MC79L05 –7 –20
Input voltage, V
I
MC79L12 –14.5 –27 V
MC79L15 –17.5 –30
Output current, I
O
100 mA
Operating virtual junction temperature, T
J
0 125 °C
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