ST L7800 User Manual
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POSITIVE VOLTAGE REGULATORS
L7800
SERIES
■ OUTPUT CURRENT TO 1.5A
■ OUTPUT VOLTAGES OF 5; 5.2; 6; 8; 8.5; 9;
10; 12; 15; 18; 24V
■ THERMAL OVERLOAD PROTECTION
■ SHORT CIRCUIT PROTECTION
■ OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7800 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
TO-220FM, TO-3 and D
2
PAK packages and
several fixed output voltages, making it useful in a
wide range of applications. These regulators c an
provide local on-card regulation, eliminating the
distribution problems associated w ith 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 1A output current. Although designed
primarily as fixed voltage regulators, these
devices can be us ed with ex ternal components to
obtain adjustable voltage and currents.
TO-220
D2PAK TO-3
TO-220FP
TO-220FM
Figure 1: Schematic Diagram
Rev. 12
1/34November 2004
L7800 SERIES
Table 1: Absolute Maximum Ratings
Symbol Parameter Value Unit
V
I
P
T
T
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
DC Input Voltage for VO= 5 to 18V
I
Output Current
O
Power Dissipation
tot
Storage Temperature Range
stg
Operating Junction T emperature
op
Range
for V
= 20, 24V
O
for L7800 -55 to 150
for L7800C 0 to 150
Table 2: Thermal Data
35
40
Internally Limited
Internally Limited
-65 to 150 °C
V
°C
Symbol Parameter
R
thj-case
R
thj-amb
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient
Max
Figure 2: Schematic Diagram
2
PAK
D
TO-220 TO-220FP TO-220FM TO-3 Unit
355 54°C/W
62.5 50 60 60 35 °C/W
2/34
Figure 3: Connection Di agram (top view)
L7800 SERIES
TO-220 (Any Type)
2
PAK (Any Ty p e )
TO-220FP/TO-220FM
TO-3D
Table 3: Order Codes
2
PAK
TYPE
L7805 L7805T
L7805C L7805CV L7805C-V L7805CV1 L7805CD2T L7805C-D2TR L7805CP L7805CF L7805CT
L7852C L7852CV L7852CD2T L7852CP L7852CF L7852CT
L7806 L7806T
L7806C L7806CV L7806C-V L7806CD2T L7806CP L7806CF L7806CT
L7808 L7808T
L7808C L7808CV L7808C-V L7808CD2T L7808CP L7808CF L7808CT
L7885C L7885CV L7885CD2T L7885CP L7885CF L7885CT
L7809C L7809CV L7809C-V L7809CD2T L7809CP L7809CF L7809CT
L7810C L7810CV L7810CD2T L7810CP
L7812 L7812T
L7812C L7812CV L7812C-V L7812CD2T L7812CP L7812CF L7812CT
L7815 L7815T
L7815C L7815CV L7815C-V L7815CD2T L7815CP L7815CF L7815CT
L7818 L7818T
L7818C L7818CV L7818CD2T L7818CP L7818CF L7818CT
L7820 L7820T
L7820C L7820CV L7820CD2T L7820CP L7820CF L7820CT
L7824 L7824T
L7824C L7824CV L7824CD2T L7824CP L7824CF L7824CT
(*) Avai l abl e in Tape & Re el wi th the suffix "-TR".
TO-220
(A Type)
TO-220
(C Type)
TO-220
(E Type)
2
D
PAK
(A Type) (*)
D
(C Type)
(T & R)
TO-220FP TO-220FM TO-3
3/34
L7800 SERIES
Figure 4: Appl i cation Ci rcuits
TEST CIRCUITS
Figure 5: DC Parameter
Figure 6: Load Re gulation
4/34
Figure 7: Ripp l e Rejection
L7800 SERIES
Table 4: Electrical Characteristics Of L7805 (refer to the test c ircuits, T
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
= -55 to 150°C, VI = 10V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 4.8 5 5.2 V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 7 to 25 V TJ = 25°C 3 50 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA 0.6 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 8 to 20 V
I
V
= 8 to 12 V TJ = 25°C 1 25
I
= 250 to 750 mA TJ = 25°C 25
I
O
= 8 to 25 V 0.8
V
I
= 25°C 40 µV/V
J
4.65 5 5.35 V
O
SVR Supply Voltage Rejection VI = 8 to 18 V f = 120Hz 68 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
d
Output Resistance f = 1 KHz 17 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
I
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
5/34
L7800 SERIES
Table 5: Electrical Characteristics Of L7806 (refer to the test c ircuits, TJ = -55 to 150°C, VI = 11V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 5.75 6 6.25 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 8 to 25 V TJ = 25°C 60 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA 0.7 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 9 to 21 V
I
= 9 to 13 V TJ = 25°C 30
V
I
I
= 250 to 750 mA TJ = 25°C 30
O
= 9 to 25 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 9 to 19 V f = 120Hz 65 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
V
d
Output Resistance f = 1 KHz 19 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
5.65 6 6.35 V
O
Table 6: Electrical Characteristics Of L7808 (refer to the test c ircuits, TJ = -55 to 150°C, VI = 14V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage TJ = 25°C 7.7 8 8.3 V
V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 10.5 to 25 V TJ = 25°C 80 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA 1 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 11.5 to 23 V
I
= 11 to 17 V TJ = 25°C 40
V
I
I
= 250 to 750 mA TJ = 25°C 40
O
= 11.5 to 25 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 11.5 to 21.5 V f = 120Hz 62 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
d
Output Resistance f = 1 KHz 16 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
I
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
7.688.4V
O
6/34
L7800 SERIES
Table 7: Electrical Characteristics Of L7812 (refer to the test c ircuits, TJ = -55 to 150°C, VI = 19V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 11.5 12 12.5 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 14.5 to 30 V TJ = 25°C 120 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA 1.5 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 15.5 to 27 V
I
= 16 to 22 V TJ = 25°C 60
V
I
I
= 250 to 750 mA TJ = 25°C 60
O
= 15 to 30 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 15 to 25 V f = 120Hz 61 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
V
d
Output Resistance f = 1 KHz 18 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
11.4 12 12.6 V
O
Table 8: Electrical Characteristics Of L7815 (refer to the test c ircuits, TJ = -55 to 150°C, VI = 23V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage TJ = 25°C 14.4 15 15.6 V
V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 17.5 to 30 V TJ = 25°C 150 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 150 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA 1.8 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 18.5 to 30 V
I
= 20 to 26 V TJ = 25°C 75
V
I
I
= 250 to 750 mA TJ = 25°C 75
O
= 18.5 to 30 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 18.5 to 28.5 V f = 120Hz 60 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
d
Output Resistance f = 1 KHz 19 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
I
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
14.25 15 15.75 V
O
7/34
L7800 SERIES
Table 9: Electrical Characteristics Of L7818 (refer to the test c ircuits, TJ = -55 to 150°C, VI = 26V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 17.3 18 18.7 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 21 to 33 V TJ = 25°C 180 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 180 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA 2.3 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 22 to 33 V
I
= 24 to 30 V TJ = 25°C 90
V
I
I
= 250 to 750 mA TJ = 25°C 90
O
= 22 to 33 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 22 to 32 V f = 120Hz 59 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
V
d
Output Resistance f = 1 KHz 22 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
17.1 18 18.9 V
O
Table 10: Electrical Characteristics Of L7820 (refer to the test circuits, TJ = -55 to 150°C, VI = 28V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage TJ = 25°C 19.2 20 20.8 V
V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 22.5 to 35 V TJ = 25°C 200 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 200 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA 2.5 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 24 to 35 V
I
= 26 to 32 V TJ = 25°C 100
V
I
I
= 250 to 750 mA TJ = 25°C 100
O
= 24 to 35 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 24 to 35 V f = 120Hz 58 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
d
Output Resistance f = 1 KHz 24 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
I
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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 20 21 V
O
8/34
L7800 SERIES
Table 11: Electrical Characteristics Of L7824 (refer to the test circuits, TJ = -55 to 150°C, VI = 33V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 232425 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 27 to 38 V TJ = 25°C 240 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 240 mV
∆V
O
Quiescent Current TJ = 25°C 6 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA 3 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 28 to 38 V
I
= 30 to 36 V TJ = 25°C 120
V
I
I
= 250 to 750 mA TJ = 25°C 120
O
= 28 to 38 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 28 to 38 V f = 120Hz 56 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V
V
d
Output Resistance f = 1 KHz 28 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A
sc
Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A
I
scp
(*) 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.
22.8 24 25.2 V
O
Table 12: Electrical Characteristics Of L7805C (refer to the test circuits, TJ = 0 to 125°C, VI = 10V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage TJ = 25°C 4.8 5 5.2 V
V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 7 to 25 V TJ = 25°C 3 100 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV
∆V
O
Quiescent Current TJ = 25°C 8 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA -1.1 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 7 to 20 V
I
= 8 to 12 V TJ = 25°C 1 50
V
I
I
= 250 to 750 mA TJ = 25°C 50
O
= 7 to 25 V 0.8
V
I
= 25°C 40 µV/V
J
SVR Supply Voltage Rejection VI = 8 to 18 V f = 120Hz 62 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 V
d
Output Resistance f = 1 KHz 17 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.75 A
I
sc
Short Circuit Peak Current TJ = 25°C 2.2 A
I
scp
(*) 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.
4.75 5 5.25 V
O
9/34
L7800 SERIES
Table 13: Electrical Characteristics Of L7852C (refer to the test circuits, TJ = 0 to 125°C, VI = 10V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 5.0 5.2 5.4 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 7 to 25 V TJ = 25°C 3 105 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 105 mV
∆V
O
Quiescent Current TJ = 25°C 8 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA -1 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 8 to 20 V
I
= 8 to 12 V TJ = 25°C 1 52
V
I
I
= 250 to 750 mA TJ = 25°C 52
O
= 7 to 25 V 1.3
V
I
= 25°C 42 µV/V
J
SVR Supply Voltage Rejection VI = 8 to 18 V f = 120Hz 61 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 V
V
d
Output Resistance f = 1 KHz 17 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.75 A
sc
Short Circuit Peak Current TJ = 25°C 2.2 A
I
scp
(*) 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.
4.95 5.2 5.45 V
O
Table 14: Electrical Characteristics Of L7806C (refer to the test circuits, TJ = 0 to 125°C, VI = 11V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 5.75 6 6.25 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
∆V
(*) Line Regulation VI = 8 to 25 V TJ = 25°C 120 mV
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 120 mV
∆V
O
Quiescent Current TJ = 25°C 8 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA -0.8 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 8 to 21 V
I
= 9 to 13 V TJ = 25°C 60
V
I
I
= 250 to 750 mA TJ = 25°C 60
O
= 8 to 25 V 1.3
V
I
= 25°C 45 µV/V
J
SVR Supply Voltage Rejection VI = 9 to 19 V f = 120Hz 59 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 V
V
d
Output Resistance f = 1 KHz 19 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.55 A
I
sc
I
Short Circuit Peak Current TJ = 25°C 2.2 A
scp
(*) 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.
5.766.3V
O
10/34
L7800 SERIES
Table 15: Electrical Characteristics Of L7808C (refer to the test circuits, TJ = 0 to 125°C, VI = 14V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 7.7 8 8.3 V
O
V
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
O
(*) Line Regulation VI = 10.5 to 25 V TJ = 25°C 160 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 160 mV
∆V
O
Quiescent Current TJ = 25°C 8 mA
I
d
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
∆I
d
/∆T Output Voltage Drift IO = 5 mA -0.8 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 10.5 to 25 V
I
= 11 to 17 V TJ = 25°C 80
V
I
I
= 250 to 750 mA TJ = 25°C 80
O
= 10.5 to 25 V 1
V
I
= 25°C 52 µV/V
J
SVR Supply Voltage Rejection VI = 11.5 to 21.5 V f = 120Hz 56 dB
Dropout Voltage IO = 1 A TJ = 25°C 2 V
V
d
Output Resistance f = 1 KHz 16 mΩ
R
O
I
Short Circuit Current VI = 35 V TJ = 25°C 0.45 A
sc
Short Circuit Peak Current TJ = 25°C 2.2 A
I
scp
(*) 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.
7.688.4V
O
Table 16: Electrical Characteristics Of L7885C (refer to the test circuits, TJ = 0 to 125°C, VI = 14.5V,
= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage TJ = 25°C 8.2 8.5 8.8 V
V
O
Output Voltage IO = 5 mA to 1 A PO ≤ 15W
V
O
(*) Line Regulation VI = 11 to 27 V TJ = 25°C 160 mV
∆V
O
(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 160 mV
∆V
O
Quiescent Current TJ = 25°C 8 mA
I
d
∆I
Quiescent Current Change IO = 5 mA to 1 A 0.5 mA
d
/∆T Output Voltage Drift IO = 5 mA -0.8 mV/°C
∆V
O
eN Output Noise Voltage B =10Hz to 100KHz T
V
= 11 to 26 V
I
= 11.5 to 17.5 V TJ = 25°C 80
V
I
I
= 250 to 750 mA TJ = 25°C 80
O
= 11 to 27 V 1
V
I
= 25°C 55 µV/V
J
SVR Supply Voltage Rejection VI = 12 to 22 V f = 120Hz 56 dB
V
Dropout Voltage IO = 1 A TJ = 25°C 2 V
d
Output Resistance f = 1 KHz 16 mΩ
R
O
Short Circuit Current VI = 35 V TJ = 25°C 0.45 A
I
sc
Short Circuit Peak Current TJ = 25°C 2.2 A
I
scp
(*) 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.
8.1 8.5 8.9 V
O
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