STMicroelectronics L7885C Positive voltage regulator Datasheet

L78xx
L78xxC
Positive voltage regulators
Features
■
Output current to 1.5 A
■
Output voltages of 5; 5.2; 6; 8; 8.5; 9; 10; 12;
15; 18; 20; 24 V
■
Thermal overload protection
■
Short circuit protection
■
Output transition SOA protection
TO-220FP
TO-220
Description
The L78xx series of three-terminal positive
regulators is available in TO-220, TO-220FP,
TO-3 and D2PAK packages and several fixed
output voltages, making it useful in a wide range
of applications. These regulators can provide
local on-card regulation, eliminating the
distribution problems associated with single point
regulation. Each type employs internal current
limiting, thermal shut-down and safe area
protection, making it essentially indestructible. If
adequate heat sinking is provided, they can
deliver over 1 A output current. Although designed
primarily as fixed voltage regulators, these
devices can be used with external components to
obtain adjustable voltage and currents.
Table 1.
D2PAK
TO-3
Device summary
Order codes
L7805
L7810C
L7805C
L7812C
L7852C
L7815C
L7806C
L7818C
L7808C
L7820C
L7885C
L7824C
L7809C
August 2007
Rev. 16
1/52
www.st.com
52
L78xx - L78xxC
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Test circuits
5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6
Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8
Order code
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2/52
............................................... 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
L78xx - L78xxC
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DC Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ripple rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dropout voltage vs junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Peak output current vs input/output differential voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Supply voltage rejection vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Output voltage vs junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Output impedance vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Quiescent current vs junction temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Load transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Line transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Quiescent current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fixed output regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Current regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Adjustable output regulator (7 to 30 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
0.5 to 10 V Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
High current voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
High output current with short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Tracking voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Split power supply (± 15 V - 1 A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Negative output voltage circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
High input voltage circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
High input voltage circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
High output voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
High input and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Reducing power dissipation with dropping resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Remote shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power AM modulator (unity voltage gain, IO ≤0.5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Adjustable output voltage with temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . 39
Light controllers (VOmin = VXX + VBE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Protection against input short-circuit with high capacitance loads . . . . . . . . . . . . . . . . . . . 40
Drawing dimension D2PAK (type STD-ST). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Drawing dimension D2PAK (type WOOSEOK-SUBCON.) . . . . . . . . . . . . . . . . . . . . . . . . . 46
D2PAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3/52
List of tables
L78xx - L78xxC
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
4/52
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150°C,
VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 11
Electrical characteristics of L7806 (refer to the test circuits, TJ = -55 to 150°C,
VI = 11 V,IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . . 12
Electrical characteristics of L7808 (refer to the test circuits, TJ = -55 to 150°C,
VI = 14V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . . 13
Electrical characteristics of L7812 (refer to the test circuits, TJ = -55 to 150°C,
VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 14
Electrical characteristics of L7815 (refer to the test circuits, TJ = -55 to 150°C,
VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 15
Electrical characteristics of L7818 (refer to the test circuits, TJ = -55 to 150°C,
VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 16
Electrical characteristics of L7820 (refer to the test circuits, TJ = -55 to 150°C,
VI = 28 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 17
Electrical characteristics of L7824 (refer to the test circuits, TJ = -55 to 150°C,
VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 18
Electrical characteristics of L7805C (refer to the test circuits, TJ = 0 to 150°C,
VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 19
Electrical characteristics of L7852C (refer to the test circuits, TJ = 0 to 150°C,
VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 20
Electrical characteristics of L7806C (refer to the test circuits, TJ = 0 to 150°C,
VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 21
Electrical characteristics of L7808C (refer to the test circuits, TJ = 0 to 150°C,
VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 22
Electrical characteristics of L7885C (refer to the test circuits, TJ = 0 to 150°C,
VI = 14.5 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . 23
Electrical characteristics of L7809C (refer to the test circuits, TJ = 0 to 150°C,
VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 24
Electrical characteristics of L7810C (refer to the test circuits, TJ = 0 to 150°C,
VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 25
Electrical characteristics of L7812C (refer to the test circuits, TJ = 0 to 150°C,
VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 26
Electrical characteristics of L7815C (refer to the test circuits, TJ = 0 to 150°C,
VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 27
Electrical characteristics of L7818C (refer to the test circuits, TJ = 0 to 150°C,
VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 28
Electrical characteristics of L7820C (refer to the test circuits, TJ = 0 to 150°C,
VI = 28 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 29
Electrical characteristics of L7824C (refer to the test circuits, TJ = 0 to 150°C,
VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) . . . . . . . . 30
D2PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
L78xx - L78xxC
1
Diagram
Figure 1.
Block diagram
Diagram
5/52
Pin configuration
L78xx - L78xxC
2
Pin configuration
Figure 2.
Pin connections (top view)
TO-220
D2PAK (Any Type)
Figure 3.
6/52
Schematic diagram
TO220FP
TO-3
L78xx - L78xxC
Maximum ratings
3
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
for VO= 5 to 18 V
35
for VO= 20, 24 V
40
Unit
VI
DC Input voltage
IO
Output current
Internally Limited
PD
Power dissipation
Internally Limited
TSTG
Storage temperature range
TOP
Operating junction temperature range
V
-65 to 150
for L7800
°C
-55 to 150
°C
for L7800C
0 to 150
Note:
Absolute Maximum Ratings are those values beyond which damage to the device may
occur. Functional operation under these condition is not implied
Table 3.
Thermal data
Symbol
Parameter
RthJC
Thermal resistance junction-case
RthJA
Thermal resistance junction-ambient
D2PAK
TO-220
TO-220FP
TO-3
Unit
3
5
5
4
°C/W
62.5
50
60
35
°C/W
7/52
Maximum ratings
Figure 4.
8/52
Application circuits
L78xx - L78xxC
L78xx - L78xxC
4
Test circuits
Figure 5.
DC Parameter
Figure 6.
Load regulation
Test circuits
9/52
Test circuits
Figure 7.
10/52
Ripple rejection
L78xx - L78xxC
L78xx - L78xxC
Electrical characteristics
5
Electrical characteristics
Table 4.
Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
4.8
5
5.2
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 8 to 20 V
4.65
5
5.35
V
ΔVO(1)
VI = 7 to 25 V, TJ = 25°C
3
50
Line regulation
VI = 8 to 12 V, TJ = 25°C
1
25
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
mV
IO = 5 mA to 1.5 A, TJ = 25°C
100
IO = 250 to 750 mA, TJ = 25°C
25
TJ = 25°C
6
mV
IO = 5 mA to 1 A
0.5
VI = 8 to 25 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
17
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
0.6
mV/°C
40
68
1.3
µV/VO
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
11/52
Electrical characteristics
Table 5.
Symbol
L78xx - L78xxC
Electrical characteristics of L7806 (refer to the test circuits, TJ = -55 to 150°C, VI = 11 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
5.75
6
6.25
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 9 to 21 V
5.65
6
6.35
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 8 to 25 V, TJ = 25°C
60
VI = 9 to 13 V, TJ = 25°C
30
IO = 5 mA to 1.5 A, TJ = 25°C
100
IO = 250 to 750 mA, TJ = 25°C
30
TJ = 25°C
6
mV
mV
IO = 5 mA to 1 A
0.5
VI = 9 to 25 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 9 to 19 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
19
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
0.7
mV/°C
40
65
1.3
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
12/52
µV/VO
L78xx - L78xxC
Table 6.
Symbol
Electrical characteristics
Electrical characteristics of L7808 (refer to the test circuits, TJ = -55 to 150°C, VI = 14V, IO
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
7.7
8
8.3
V
VO
Output voltage
IO = 5 mA to 1A, PO ≤15 W
VI = 11.5 to 23 V
7.6
8
8.4
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 10.5 to 25 V, TJ = 25°C
80
VI = 11 to 17 V, TJ = 25°C
40
IO = 5 mA to 1.5 A, TJ = 25°C
100
IO = 250 to 750 mA, TJ = 25°C
40
TJ = 25°C
6
mV
mV
IO = 5 mA to 1 A
0.5
VI = 11.5 to 25 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 11.5 to 21.5 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
16
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
1
mV/°C
40
62
1.3
µV/VO
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
13/52
Electrical characteristics
Table 7.
Symbol
L78xx - L78xxC
Electrical characteristics of L7812 (refer to the test circuits, TJ = -55 to 150°C, VI = 19 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
11.5
12
12.5
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 15.5 to 27 V
11.4
12
12.6
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 14.5 to 30 V, TJ = 25°C
120
VI = 16 to 22 V, TJ = 25°C
60
IO = 5 mA to 1.5 A, TJ = 25°C
100
IO = 250 to 750 mA, TJ = 25°C
60
TJ = 25°C
6
mV
mV
IO = 5 mA to 1 A
0.5
VI = 15 to 30 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
18
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
1.5
mV/°C
40
61
1.3
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
14/52
µV/VO
L78xx - L78xxC
Table 8.
Symbol
Electrical characteristics
Electrical characteristics of L7815 (refer to the test circuits, TJ = -55 to 150°C, VI = 23 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
14.4
15
15.6
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 18.5 to 30 V
14.25
15
15.75
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 17.5 to 30 V, TJ = 25°C
150
VI = 20 to 26 V, TJ = 25°C
75
IO = 5 mA to 1.5 A, TJ = 25°C
150
IO = 250 to 750 mA, TJ = 25°C
75
TJ = 25°C
6
mV
mV
IO = 5 mA to 1 A
0.5
VI = 18.5 to 30 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
19
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
1.8
mV/°C
40
60
1.3
µV/VO
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
15/52
Electrical characteristics
Table 9.
Symbol
L78xx - L78xxC
Electrical characteristics of L7818 (refer to the test circuits, TJ = -55 to 150°C, VI = 26 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
17.3
18
18.7
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 22 to 33 V
17.1
18
18.9
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 21 to 33 V, TJ = 25°C
180
VI = 24 to 30 V, TJ = 25°C
90
IO = 5 mA to 1.5 A, TJ = 25°C
180
IO = 250 to 750 mA, TJ = 25°C
90
TJ = 25°C
6
mV
mV
IO = 5 mA to 1 A
0.5
VI = 22 to 33 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 22 to 32 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
22
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
2.3
mV/°C
40
59
1.3
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
16/52
µV/VO
L78xx - L78xxC
Table 10.
Symbol
Electrical characteristics
Electrical characteristics of L7820 (refer to the test circuits, TJ = -55 to 150°C, VI = 28 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
VO
Output voltage
TJ = 25°C
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 24 to 35 V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
Min.
Typ.
Max.
Unit
19.2
20
20.8
V
19
20
21
V
VI = 22.5 to 35 V, TJ = 25°C
200
VI = 26 to 32 V, TJ = 25°C
100
IO = 5 mA to 1.5 A, TJ = 25°C
200
IO = 250 to 750 mA, TJ = 25°C
100
mV
mV
TJ = 25°C
6
IO = 5 mA to 1 A
0.5
VI = 24 to 35 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 24 to 35 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
24
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
2.5
mV/°C
40
58
1.3
µV/VO
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
17/52
Electrical characteristics
Table 11.
Symbol
L78xx - L78xxC
Electrical characteristics of L7824 (refer to the test circuits, TJ = -55 to 150°C, VI = 33 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
VO
Output voltage
TJ = 25°C
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 28 to 38 V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
Min.
Typ.
Max.
Unit
23
24
25
V
22.8
24
25.2
V
VI = 27 to 38 V, TJ = 25°C
240
VI = 30 to 36 V, TJ = 25°C
120
IO = 5 mA to 1.5 A, TJ = 25°C
240
IO = 250 to 750 mA, TJ = 25°C
120
mV
mV
TJ = 25°C
6
IO = 5 mA to 1 A
0.5
VI = 28 to 38 V
0.8
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 28 to 38 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
RO
Output resistance
f = 1 KHz
28
Isc
Short circuit current
VI = 35 V, TJ = 25°C
Iscp
Short circuit peak current
TJ = 25°C
eN
SVR
mA
3
mV/°C
40
56
1.3
dB
2.5
V
mΩ
0.75
1.2
A
2.2
3.3
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
18/52
µV/VO
L78xx - L78xxC
Table 12.
Symbol
Electrical characteristics
Electrical characteristics of L7805C (refer to the test circuits, TJ = 0 to 150°C, VI = 10 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
4.8
5
5.2
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 7 to 20 V
4.75
5
5.25
V
ΔVO(1)
VI = 7 to 25 V, TJ = 25°C
3
100
Line regulation
VI = 8 to 12 V, TJ = 25°C
1
50
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
mV
IO = 5 mA to 1.5 A, TJ = 25°C
100
IO = 250 to 750 mA, TJ = 25°C
50
TJ = 25°C
8
mV
IO = 5 mA to 1 A
0.5
VI = 7 to 25 V
0.8
mA
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.75
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
-1.1
mV/°C
40
µV/VO
62
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
19/52
Electrical characteristics
Table 13.
Symbol
L78xx - L78xxC
Electrical characteristics of L7852C (refer to the test circuits, TJ = 0 to 150°C, VI = 10 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
5.0
5.2
5.4
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 8 to 20 V
4.95
5.2
5.45
V
ΔVO(1)
VI = 7 to 25 V, TJ = 25°C
3
105
Line regulation
VI = 8 to 12 V, TJ = 25°C
1
52
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
mV
IO = 5 mA to 1.5 A, TJ = 25°C
105
IO = 250 to 750 mA, TJ = 25°C
52
TJ = 25°C
8
mV
IO = 5 mA to 1 A
0.5
VI = 7 to 25 V
1.3
mA
mA
Output voltage drift
IO = 5 mA
-1
mV/°C
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
42
µV/VO
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.75
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
61
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
20/52
L78xx - L78xxC
Table 14.
Symbol
Electrical characteristics
Electrical characteristics of L7806C (refer to the test circuits, TJ = 0 to 150°C, VI = 11 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
5.75
6
6.25
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 8 to 21 V
5.7
6
6.3
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 8 to 25 V, TJ = 25°C
120
VI = 9 to 13 V, TJ = 25°C
60
IO = 5 mA to 1.5 A, TJ = 25°C
120
IO = 250 to 750 mA, TJ = 25°C
60
TJ = 25°C
8
mV
mV
IO = 5 mA to 1 A
0.5
VI = 8 to 25 V
1.3
mA
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 9 to 19 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
19
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.55
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
-0.8
mV/°C
45
µV/VO
59
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
21/52
Electrical characteristics
Table 15.
Symbol
L78xx - L78xxC
Electrical characteristics of L7808C (refer to the test circuits, TJ = 0 to 150°C, VI = 14 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
7.7
8
8.3
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 10.5 to 25 V
7.6
8
8.4
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 10.5 to 25 V, TJ = 25°C
160
VI = 11 to 17 V, TJ = 25°C
80
IO = 5 mA to 1.5 A, TJ = 25°C
160
IO = 250 to 750 mA, TJ = 25°C
80
TJ = 25°C
8
mV
mV
IO = 5 mA to 1 A
0.5
VI = 10.5 to 25 V
1
mA
mA
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 11.5 to 21.5 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
16
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.45
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
-0.8
mV/°C
52
µV/VO
56
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
22/52
L78xx - L78xxC
Table 16.
Symbol
Electrical characteristics
Electrical characteristics of L7885C (refer to the test circuits, TJ = 0 to 150°C, VI = 14.5 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
8.2
8.5
8.8
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 11 to 26 V
8.1
8.5
8.9
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 11 to 27 V, TJ = 25°C
160
VI = 11.5 to 17.5 V, TJ = 25°C
80
IO = 5 mA to 1.5 A, TJ = 25°C
160
IO = 250 to 750 mA, TJ = 25°C
80
TJ = 25°C
8
mV
mV
IO = 5 mA to 1 A
mA
0.5
mA
VI = 11 to 27 V
1
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 12 to 22V, f = 120Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
16
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.45
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
-0.8
mV/°C
55
µV/VO
56
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
23/52
Electrical characteristics
Table 17.
Symbol
L78xx - L78xxC
Electrical characteristics of L7809C (refer to the test circuits, TJ = 0 to 150°C, VI = 15 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
8.64
9
9.36
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 11.5 to 26 V
8.55
9
9.45
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 11.5 to 26 V, TJ = 25°C
180
VI = 12 to 18 V, TJ = 25°C
90
IO = 5 mA to 1.5 A, TJ = 25°C
180
IO = 250 to 750 mA, TJ = 25°C
90
TJ = 25°C
8
mV
mV
IO = 5 mA to 1 A
0.5
VI = 11.5 to 26 V
1
mA
mA
Output voltage drift
IO = 5 mA
-1
mV/°C
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
70
µV/VO
Supply voltage rejection
VI = 12 to 23 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.40
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
55
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
24/52
L78xx - L78xxC
Table 18.
Symbol
Electrical characteristics
Electrical characteristics of L7810C (refer to the test circuits, TJ = 0 to 150°C, VI = 15 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
9.6
10
10.4
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 12.5 to 26 V
9.5
10
10.5
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 12.5 to 26 V, TJ = 25°C
200
VI = 13.5 to 19 V, TJ = 25°C
100
IO = 5 mA to 1.5 A, TJ = 25°C
200
IO = 250 to 750 mA, TJ = 25°C
100
mV
mV
TJ = 25°C
8
IO = 5 mA to 1 A
0.5
VI = 12.5 to 26 V
1
mA
mA
Output voltage drift
IO = 5 mA
-1
mV/°C
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
70
µV/VO
Supply voltage rejection
VI = 13 to 23 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.40
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
55
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
25/52
Electrical characteristics
Table 19.
Symbol
L78xx - L78xxC
Electrical characteristics of L7812C (refer to the test circuits, TJ = 0 to 150°C, VI = 19 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
11.5
12
12.5
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 14.5 to 27 V
11.4
12
12.6
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 14.5 to 30 V, TJ = 25°C
240
VI = 16 to 22 V, TJ = 25°C
120
IO = 5 mA to 1.5 A, TJ = 25°C
240
IO = 250 to 750 mA, TJ = 25°C
120
mV
mV
TJ = 25°C
8
IO = 5 mA to 1 A
0.5
VI = 14.5 to 30 V
1
mA
mA
Output voltage drift
IO = 5 mA
-1
mV/°C
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
75
µV/VO
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
18
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.35
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
55
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
26/52
L78xx - L78xxC
Table 20.
Symbol
Electrical characteristics
Electrical characteristics of L7815C (refer to the test circuits, TJ = 0 to 150°C, VI = 23 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
14.5
15
15.6
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 17.5 to 30 V
14.25
15
15.75
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 17.5 to 30 V, TJ = 25°C
300
VI = 20 to 26 V, TJ = 25°C
150
IO = 5 mA to 1.5 A, TJ = 25°C
300
IO = 250 to 750 mA, TJ = 25°C
150
mV
mV
TJ = 25°C
8
IO = 5 mA to 1A
0.5
VI = 17.5 to 30 V
1
mA
mA
Output voltage drift
IO = 5 mA
-1
mV/°C
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
90
µV/VO
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
19
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.23
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
eN
SVR
54
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
27/52
Electrical characteristics
Table 21.
Symbol
L78xx - L78xxC
Electrical characteristics of L7818C (refer to the test circuits, TJ = 0 to 150°C, VI = 26 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
17.3
18
18.7
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 21 to 33 V
17.1
18
18.9
V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
VI = 21 to 33 V, TJ = 25°C
360
VI = 24 to 30 V, TJ = 25°C
180
IO = 5 mA to 1.5 A, TJ = 25°C
360
IO = 250 to 750 mA, TJ = 25°C
180
mV
mV
TJ = 25°C
8
IO = 5 mA to 1 A
mA
0.5
mA
VI = 21 to 33 V
1
Output voltage drift
IO = 5 mA
Output noise voltage
B = 10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 22 to 32 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
22
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.20
A
Iscp
Short circuit peak current
TJ = 25°C
2.1
A
eN
SVR
-1
mV/°C
110
µV/VO
53
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
28/52
L78xx - L78xxC
Table 22.
Symbol
Electrical characteristics
Electrical characteristics of L7820C (refer to the test circuits, TJ = 0 to 150°C, VI = 28 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
VO
Output voltage
TJ = 25°C
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 23 to 35 V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
Min.
Typ.
Max.
Unit
19.2
20
20.8
V
19
20
21
V
VI = 22.5 to 35 V, TJ = 25°C
400
VI = 26 to 32 V, TJ = 25°C
200
IO = 5 mA to 1.5 A, TJ = 25°C
400
IO = 250 to 750 mA, TJ = 25°C
200
mV
mV
TJ = 25°C
8
IO = 5 mA to 1 A
mA
0.5
mA
VI = 23 to 35 V
1
Output voltage drift
IO = 5 mA
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
Supply voltage rejection
VI = 24 to 35 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
24
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.18
A
Iscp
Short circuit peak current
TJ = 25°C
2.1
A
eN
SVR
-1
mV/°C
150
µV/VO
52
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
29/52
Electrical characteristics
Table 23.
Symbol
L78xx - L78xxC
Electrical characteristics of L7824C (refer to the test circuits, TJ = 0 to 150°C, VI = 33 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Parameter
Test conditions
VO
Output voltage
TJ = 25°C
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 27 to 38 V
ΔVO(1)
Line regulation
ΔVO(1)
Load regulation
Id
ΔId
ΔVO/ΔT
Quiescent current
Quiescent current change
Min.
Typ.
Max.
Unit
23
24
25
V
22.8
24
25.2
V
VI = 27 to 38 V, TJ = 25°C
480
VI = 30 to 36 V, TJ = 25°C
240
IO = 5 mA to 1.5 A, TJ = 25°C
480
IO = 250 to 750 mA, TJ = 25°C
240
mV
mV
TJ = 25°C
8
IO = 5 mA to 1 A
mA
0.5
mA
VI = 27 to 38 V
1
Output voltage drift
IO = 5 mA
-1.5
mV/°C
Output noise voltage
B = 10 Hz to 100 KHz, TJ = 25°C
170
µV/VO
Supply voltage rejection
VI = 28 to 38 V, f = 120 Hz
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 KHz
28
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.15
A
Iscp
Short circuit peak current
TJ = 25°C
2.1
A
eN
SVR
50
dB
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
30/52
L78xx - L78xxC
6
Typical performance
Figure 8.
Dropout voltage vs junction
temperature
Typical performance
Figure 9.
Peak output current vs input/output
differential voltage
Figure 10. Supply voltage rejection vs
frequency
Figure 11. Output voltage vs junction
temperature
Figure 12. Output impedance vs frequency
Figure 13. Quiescent current vs junction temp.
31/52
Typical performance
Figure 14. Load transient response
L78xx - L78xxC
Figure 15. Line transient response
Figure 16. Quiescent current vs input voltage
Figure 17. Fixed output regulator
1. To specify an output voltage, substitute voltage value for "XX".
2. Although no output capacitor is need for stability, it does improve transient response.
3. Required if regulator is locate an appreciable distance from power supply filter.
32/52
L78xx - L78xxC
Typical performance
Figure 18. Current regulator
IO = VXX/R1+Id
Figure 19. Circuit for increasing output voltage
IR1 ≥ 5 Id
VO = VXX(1+R2/R1)+IdR2
Figure 20. Adjustable output regulator (7 to 30V)
33/52
Typical performance
Figure 21. 0.5 to 10V Regulator
VO=VXXR4/R1
Figure 22. High current voltage regulator
VBEQ1
R1 = ______________
IREQ-(IQ1/βQ1)
VBEQ1
IO = IREG + Q1 (IREG ______)
R1
Figure 23. High output current with short circuit protection
RSC=VBEQ2/ISC
34/52
L78xx - L78xxC
L78xx - L78xxC
Typical performance
Figure 24. Tracking voltage regulator
Figure 25. Split power supply (± 15V - 1 A)
* Against potential latch-up problems.
35/52
Typical performance
Figure 26. Negative output voltage circuit
Figure 27. Switching regulator
Figure 28. High input voltage circuit
VIN = VI - (VZ + VBE)
36/52
L78xx - L78xxC
L78xx - L78xxC
Typical performance
Figure 29. High input voltage circuit
Figure 30. High output voltage regulator
Figure 31. High input and output voltage
VO = VXX + VZ1
37/52
Typical performance
Figure 32. Reducing power dissipation with dropping resistor
VI(min)-VXX-VDROP(max)
R = ____________________
IO(max)+Id(max)
Figure 33. Remote shutdown
Figure 34. Power AM modulator (unity voltage gain, IO ≤0.5)
Note:
38/52
The circuit performs well up to 100 KHz.
L78xx - L78xxC
L78xx - L78xxC
Typical performance
Figure 35. Adjustable output voltage with temperature compensation
VO = VXX (1+R2/R1) + VBE
Note:
Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with the
temperature. C allows a slow rise time of the VO.
Figure 36. Light controllers (VOmin = VXX + VBE)
VO falls when the light goes up
VO rises when the light goes up
39/52
Typical performance
L78xx - L78xxC
Figure 37. Protection against input short-circuit with high capacitance loads
1. Application with high capacitance loads and an output voltage greater than 6 volts need an external diode
(see fig. 32) to protect the device against input short circuit. In this case the input voltage falls rapidly while
the output voltage decrease slowly. The capacitance discharges by means of the Base-Emitter junction of
the series pass transistor in the regulator. If the energy is sufficiently high, the transistor may be destroyed.
The external diode by-passes the current from the IC to ground.
40/52
L78xx - L78xxC
7
Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
41/52
Package mechanical data
L78xx - L78xxC
TO-3 mechanical data
mm.
Dim.
Min.
A
inch.
Typ.
Max.
Min.
Typ.
11.85
B
0.96
Max.
0.466
1.05
1.10
0.037
0.041
0.043
C
1.70
0.066
D
8.7
0.342
E
20.0
0.787
G
10.9
0.429
N
16.9
0.665
P
26.2
R
3.88
1.031
4.09
U
0.152
39.5
V
1.555
30.10
1.185
A
P
D
C
O
N
B
V
E
G
U
0.161
R
P003C/C
42/52
L78xx - L78xxC
Package mechanical data
TO-220 (A type) mechanical data
Dim.
mm.
Min.
Typ.
inch.
Max.
Min.
Typ.
Max.
A
4.40
4.60
0.173
0.181
b
0.61
0.88
0.024
0.035
b1
1.15
1.70
0.045
0.067
c
0.49
0.70
0.019
0.028
D
15.25
15.75
0.600
0.620
E
10.0
10.40
0.394
0.409
e
2.4
2.7
0.094
0.106
e1
4.95
5.15
0.195
0.203
F
1.23
1.32
0.048
0.052
H1
6.2
6.6
0.244
0.260
J1
2.40
2.72
0.094
0.107
L
13.0
14.0
0.512
0.551
L1
3.5
3.93
0.138
0.155
L20
16.4
0.646
L30
28.9
1.138
φP
3.75
3.85
0.148
0.152
Q
2.65
2.95
0.104
0.116
0015988/N
43/52
Package mechanical data
L78xx - L78xxC
TO-220FP mechanical data
Dim.
mm.
Min.
A
4.40
Typ
inch.
Max.
Min.
Typ.
Max.
4.60
0.173
0.181
B
2.5
2.7
0.098
0.106
D
2.5
2.75
0.098
0.108
E
0.45
0.70
0.017
0.027
F
0.75
1
0.030
0.039
F1
1.15
1.50
0.045
0.059
F2
1.15
1.50
0.045
0.059
G
4.95
5.2
0.194
0.204
G1
2.4
2.7
0.094
0.106
H
10.0
10.40
0.393
0.409
L2
L3
16
0.630
28.6
30.6
1.126
1.204
L4
9.8
10.6
0.385
0.417
L5
2.9
3.6
0.114
0.142
L6
15.9
16.4
0.626
0.645
L7
9
9.3
0.354
0.366
DIA.
3
3.2
0.118
0.126
7012510A-H
44/52
L78xx - L78xxC
Package mechanical data
Figure 38. Drawing dimension D2PAK (type STD-ST)
0079457/L
45/52
Package mechanical data
L78xx - L78xxC
Figure 39. Drawing dimension D2PAK (type WOOSEOK-SUBCON.)
0079457/L
46/52
L78xx - L78xxC
Table 24.
Package mechanical data
D2PAK mechanical data
DIM.
MIN.
TYPE WOOSEOK-SUBCON.
mm.
mm.
TYP.
MAX.
MIN.
TYP.
MAX.
A
4.40
4.60
4.30
4.70
A1
0.03
0.23
0
0.20
b
0.70
0.93
0.70
0.90
b2
1.14
1.70
1.17
1.37
c
0.45
0.60
0.45
0.50
0.60
c2
1.23
1.36
1.25
1.30
1.40
D
8.95
9.35
9
9.20
9.40
D1
7.50
E
10
E1
8.50
e
7.50
10.40
9.80
10.20
7.50
2.54
2.54
e1
4.88
5.28
H
15
15.85
15
J1
2.49
2.69
2.20
2.60
L
2.29
2.79
1.79
2.79
L1
1.27
1.40
1
1.40
L2
1.30
1.75
1.20
1.60
R
V2
Note:
TYPE STD-ST
5.08
0.4
0°
15.30
15.60
0.30
8°
0°
3°
The D2PAK package coming from the subcontractor Wooseok is fully compatible with the
ST's package suggested footprint.
47/52
Package mechanical data
L78xx - L78xxC
Figure 40. D2PAK footprint recommended data
Table 25.
Footprint data
VALUES
48/52
mm.
inch.
A
12.20
0.480
B
9.75
0.384
C
16.90
0.665
D
3.50
0.138
E
1.60
0.063
F
2.54
0.100
G
5.08
0.200
L78xx - L78xxC
Package mechanical data
Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data
mm.
inch.
Dim.
Min.
Typ.
A
Max.
Min.
Typ.
180
13.0
7.086
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
Max.
0.504
0.512
14.4
0.519
0.567
Ao
10.50
10.6
10.70
0.413
0.417
0.421
Bo
15.70
15.80
15.90
0.618
0.622
0.626
Ko
4.80
4.90
5.00
0.189
0.193
0.197
Po
3.9
4.0
4.1
0.153
0.157
0.161
P
11.9
12.0
12.1
0.468
0.472
0.476
49/52
Order code
L78xx - L78xxC
8
Order code
Table 26.
Order code
Packaging
Part numbers
TO-220
(A Type)
D2PAK
TO-220FP
L7805
TO-3
L7805T
L7805C
L7805CV
L7805CD2T-TR
L7805CP
L7805CT
L7852C
L7852CV
L7852CD2T-TR(1)
L7852CP(1)
L7852CT(1)
L7806C
L7806CV
L7806CD2T-TR
L7808C
L7808CV
L7808CD2T-TR
L7885C
L7885CV
L7809C
L7809CV
(1)
L7885CD2T-TR
L7809CD2T-TR
L7806CT
L7808CP
L7885CP
(1)
L7808CT
L7885CT(1)
L7809CP
L7809CT
(1)
L7810C
L7810CV
L7812C
L7812CV
L7812CD2T-TR
L7812CP
L7812CT
L7815C
L7815CV
L7815CD2T-TR
L7815CP
L7815CT
L7818C
L7818CV
L7818CD2T-TR(1)
L7820C
L7820CV
L7820CD2T-TR(1)
L7820CP(1)
L7820CT(1)
L7824C
L7824CV
L7824CD2T-TR
L7824CP
L7824CT
1. Available on request.
50/52
L7810CD2T-TR
L7818CT
L78xx - L78xxC
Revision history
9
Revision history
Table 27.
Revision history
Date
Revision
Changes
21-Jun-2004
12
Document updating.
03-Aug-2006
13
Order codes has been updated and new template.
19-Jan-2007
14
D2PAK mechanical data has been updated and add footprint data.
31-May-2007
15
Order codes has been updated.
29-Aug-2007
16
Added Table 1. in cover page.
51/52
L78xx - L78xxC
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52/52