AN7800 [PANASONIC]
3-pin Positive Output Voltage Regulator 1A Type; 3针正输出电压稳压器1A型
| 型号： | AN7800 |
| 厂家： | 
PANASONIC |
| 描述： | 3-pin Positive Output Voltage Regulator 1A Type |
| 文件： | 总8页 (文件大小：69K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AN7800/AN7800F Series
3-pin Positive Output Voltage Regulator (1A Type)
■ Overview
AN7800 Series
Unit:mm
10.5±0.5
10.4±0.5
1.4±0.1
The AN7800 series and the AN7800F series are 3-pin
fixed positive output voltage regulators. Stabilized fixed
output voltage is obtained from unstable DC input volt-
age without using external components. 11 types of fixed
output voltage are available, 5V, 6V, 7V, 8V, 9V, 10V,
12V, 15V, 18V, 20V and 24V. They can be used widely in
power circuits with current capacity up to 1A.
ø3.7
1.4±0.25
0.8±0.2
+ 0.1
– 0.05
2.54
0.45
2.5±0.25
■Features
4.5±0.3
1:Input
2:Common
3:Output
1
2
3
• No external components
• Output voltage:5V, 6V, 7V, 8V, 9V, 10V,
12V, 15V, 18V, 20V, 24V
JEDEC:TO-220AB (HSIP003-P-0000)
• Internal short-circuit current limiting
• Internal thermal overload protection
• Output transistor safe area compensation
AN7800F Series
Unit:mm
2.77±0.3
10.5±0.3
ø5.3
(4.3)
(1.73)
3.1±0.1
+0.1
0.4
– 0.05
(0.4)
0.8±0.2
2.0±0.25
2.5±0.25
2.54
1.4±0.2
4.5±0.3
1:Input
2:Common
3:Output
1
2 3
TO-220 Full Pack Package (HSIP003-P-0000A)
■Block Diagram
Input
1
Pass Tr
Q1
Current
Source
Current
Limiter
RSC
Output
3
R2
R1
Voltage
Reference
Starter
+
Thermal
Protection
ErrorAmp.
–
2
Common
■ Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Rating
Unit
V
1
*
*
*
35
40
15
Input voltage
VI
PD
2
3
V
AN7800 Series
AN7800F Series
Power dissipation
W
3
*
10.25
˚C
˚C
Operating ambient temperature
Storage temperature
Topr
Tstg
–30 to+80
–55 to+150
*
*
*
1
2
3
AN7805/F, AN7806/F, AN7807/F, AN7808/F, AN7809/F, AN7810/F, AN7812/F, AN7815/F, AN7818/F
AN7820/F, AN7824/F
Follow the derating curve. When Tj exceeds 150˚C, the internal circuit cuts off output.
■ Electrical Characteristics (Ta=25˚C)
AN7805/7805F (5V Type)
·
Parameter
Output voltage
Symbol
Condition
min
4.8
4.75
typ
max
5.2
Unit
VO
VO
Tj=25˚C
VI=8 to 20V, IO=5mA to 1A,
5
V
Output voltage tolerance
Line regulation
5.25
V
<
*
Tj=0 to 125˚C, PD
=
VI=7.5 to 25V, Tj=25˚C
VI=8 to 12V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
3
1
100
50
mV
mV
mV
mV
mA
mA
mA
µV
dB
REGIN
REGL
15
5
100
50
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
3.9
8
Input bias current change
Load bias current change
Output noise voltage
VI=7.5 to 25V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=8 to 18V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1.3
0.5
40
Ripple rejection ratio
RR
62
Minimum input/output voltage difference
Output impedance
VDIF (min.)
ZO
2
17
V
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
IO (Short)
IO (Peak)
∆VO/Ta
VI=25V, Tj=25˚C
700
2
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.3
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=10V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■ Electrical Characteristics (Ta=25˚C)
AN7806/7806F (6V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
max
6.25
Unit
VO
VO
Tj=25˚C
VI=9 to 21V, IO=5mA to 1A,
5.75
6
5
V
Output voltage tolerance
Line regulation
5.7
6.3
V
<
*
Tj=0 to 125˚C, PD
=
VI=8.5 to 25V, Tj=25˚C
VI=9 to 13V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
120
60
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
1.5
14
4
120
60
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
3.9
8
Input bias current change
Load bias current change
Output noise voltage
VI=8.5 to 25V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=9 to 19V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1.3
0.5
40
Ripple rejection ratio
RR
59
dB
Minimum input/output voltage difference
Output impedance
VDIF (min.)
ZO
2
17
V
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
IO (Short)
IO (Peak)
∆VO/Ta
VI=25V, Tj=25˚C
700
2
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.4
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=11V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
AN7807/7807F (7V Type)
·
Parameter
Output voltage
Symbol
Condition
min
6.7
6.6
typ
max
7.3
Unit
VO
VO
Tj=25˚C
7
5
V
VI=10 to 22V, IO=5mA to 1A,
Output voltage tolerance
Line regulation
7.4
V
<*
Tj=0 to 125˚C, PD
=
VI=9.5 to 25V, Tj=25˚C
VI=10 to 15V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
140
70
140
70
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
1.5
14
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
3.9
Input bias current change
Load bias current change
Output noise voltage
VI=9.5 to 25V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=10 to 20V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
46
Ripple rejection ratio
RR
57
dB
Minimum input/output voltage difference
Output impedance
2
16
V
VDIF (min.)
ZO
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
VI=25V, Tj=25˚C
700
2
IO (Short)
IO (Peak)
∆VO/Ta
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.5
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=12V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■ Electrical Characteristics (Ta=25˚C)
AN7808/7808F (8V Type)
·
Parameter
Output voltage
Symbol
Condition
min
7.7
7.6
typ
max
8.3
Unit
VO
VO
Tj=25˚C
VI=11 to 23V, IO=5mA to 1A,
8
V
Output voltage tolerance
Line regulation
8.4
V
<
*
Tj=0 to 125˚C, PD
=
VI=10.5 to 25V, Tj=25˚C
VI=11 to 17V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
6
2
160
80
160
80
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
3.9
∆Ibias (IN)
∆Ibias (L)
Vno
Input bias current change
Load bias current change
Output noise voltage
VI=10.5 to 25V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=11.5 to 21.5V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
52
Ripple rejection ratio
RR
56
dB
VDIF (min.)
ZO
Minimum input/output voltage difference
Output impedance
2
16
V
f=1kHz
mΩ
mA
A
IO (Short)
IO (Peak)
∆VO/Ta
Output short circuit current
Peak output current
VI=25V, Tj=25˚C
700
2
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.5
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=14V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
AN7809/7809F (9V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
max
9.35
Unit
VO
VO
Tj=25˚C
VI=12 to 24V, IO=5mA to 1A,
8.65
9
V
Output voltage tolerance
Line regulation
8.55
9.45
V
<*
Tj=0 to 125˚C, PD
=
VI=11.5 to 26V, Tj=25˚C
VI=12 to 18V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
7
2
180
90
180
90
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
3.9
Input bias current change
Load bias current change
Output noise voltage
VI=11.5 to 26V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=12 to 22V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
57
Ripple rejection ratio
RR
56
dB
Minimum input/output voltage difference
Output impedance
2
16
V
VDIF (min.)
ZO
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
VI=26V, Tj=25˚C
700
2
IO (Short)
IO (Peak)
∆VO/Ta
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.5
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=15V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■ Electrical Characteristics (Ta=25˚C)
AN7810/7810F (10V Type)
·
Parameter
Output voltage
Symbol
Condition
min
9.6
9.5
typ
10
max
10.4
Unit
VO
VO
Tj=25˚C
VI=13 to 25V, IO=5mA to 1A,
V
Output voltage tolerance
Line regulation
10.5
V
<
*
Tj=0 to 125˚C, PD
=
VI=12.5 to 27V, Tj=25˚C
VI=13 to 19V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
8
2.5
12
4
200
100
200
100
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
3.9
Input bias current change
Load bias current change
Output noise voltage
VI=12.5 to 27V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=13 to 23V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
63
Ripple rejection ratio
RR
56
dB
Minimum input/output voltage difference
Output impedance
VDIF (min.)
ZO
2
16
V
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
IO (Short)
IO (Peak)
∆VO/Ta
VI=27V, Tj=25˚C
700
2
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.6
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=16V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
AN7812/7812F (12V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
12
max
12.5
Unit
VO
VO
Tj=25˚C
VI=15 to 27V, IO=5mA to 1A,
11.5
V
Output voltage tolerance
Line regulation
11.4
12.6
V
<
*
Tj=0 to 125˚C, PD
=
VI=14.5 to 30V, Tj=25˚C
VI=16 to 22V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
10
3
240
120
240
120
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
4
Input bias current change
Load bias current change
Output noise voltage
VI=14.5 to 30V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=15 to 25V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
75
Ripple rejection ratio
RR
55
dB
Minimum input/output voltage difference
Output impedance
VDIF (min.)
ZO
2
18
V
mΩ
mA
A
f=1kHz
IO (Short)
IO (Peak)
∆VO/Ta
Output short circuit current
Peak output current
VI=30V, Tj=25˚C
700
2
Tj=25˚C
mV/˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
– 0.8
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=19V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■ Electrical Characteristics (Ta=25˚C)
AN7815/7815F (15V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
15
max
15.6
Unit
VO
VO
Tj=25˚C
VI=18 to 30V, IO=5mA to 1A,
14.4
V
Output voltage tolerance
Line regulation
14.25
15.75
V
<
*
Tj=0 to 125˚C, PD
=
VI=17.5 to 30V, Tj=25˚C
VI=20 to 26V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
11
3
300
150
300
150
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
4
Input bias current change
Load bias current change
Output noise voltage
VI=17.5 to 30V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=18.5 to 28.5V, f=120Hz
IO=1A, Tj=25˚C
1
0.5
90
Ripple rejection ratio
RR
54
dB
VDIF (min.)
ZO
Minimum input/output voltage difference
Output impedance
2
19
700
2
V
mΩ
mA
A
f=1kHz
IO (Short)
IO (Peak)
∆VO/Ta
Output short circuit current
Peak output current
VI=30V, Tj=25˚C
Tj=25˚C
mV/˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
–1
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=23V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
AN7818/7818F (18V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
18
max
18.7
Unit
VO
VO
Tj=25˚C
VI=21 to 33V, IO=5mA to 1A,
17.3
V
Output voltage tolerance
Line regulation
17.1
18.9
V
<*
Tj=0 to 125˚C, PD
=
VI=21 to 33V, Tj=25˚C
VI=24 to 30V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
14
4
360
180
360
180
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
4.1
Input bias current change
Load bias current change
Output noise voltage
VI=21 to 33V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=22 to 32V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
110
Ripple rejection ratio
RR
53
dB
Minimum input/output voltage difference
Output impedance
2
16
V
VDIF (min.)
ZO
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
VI=35V, Tj=25˚C
700
2
IO (Short)
IO (Peak)
∆VO/Ta
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
–1.1
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=27V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■ Electrical Characteristics (Ta=25˚C)
AN7820/7820F (20V Type)
·
Parameter
Output voltage
Symbol
Condition
min
typ
20
max
20.8
Unit
VO
VO
Tj=25˚C
VI=24 to 35V, IO=5mA to 1A,
19.2
V
Output voltage Tolerance
Line regulation
19
21
V
<
*
Tj=0 to 125˚C, PD
=
VI=23 to 35V, Tj=25˚C
VI=26 to 32V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
15
5
400
200
400
200
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
4.1
Input bias current change
Load bias current change
Output noise voltage
VI=23 to 35V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=24 to 34V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
110
Ripple rejection ratio
RR
53
dB
Minimum input/output voltage difference
Output impedance
VDIF (min.)
ZO
2
22
V
f=1kHz
mΩ
mA
A
Output short circuit current
Peak output current
IO (Short)
IO (Peak)
∆VO/Ta
VI=35V, Tj=25˚C
700
2
Tj=25˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
–1.2
mV/˚C
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=29V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
AN7824/7824F (24V Type)
·
Parameter
Output voltage
Symbol
Condition
min
23
22.8
typ
24
max
25
Unit
VO
VO
Tj=25˚C
VI=28 to 38V, IO=5mA to 1A,
V
Output voltage tolerance
Line regulation
25.2
V
<
*
Tj=0 to 125˚C, PD
=
VI=27 to 38V, Tj=25˚C
VI=30 to 36V, Tj=25˚C
IO=5mA to 1.5A, Tj=25˚C
IO=250 to 750mA, Tj=25˚C
Tj=25˚C
18
6
480
240
480
240
8
mV
mV
mV
mV
mA
mA
mA
µV
REGIN
REGL
12
4
Load regulation
Bias current
Ibias
∆Ibias (IN)
∆Ibias (L)
Vno
4.1
Input bias current change
Load bias current change
Output noise voltage
VI=27 to 38V, Tj=25˚C
IO=5mA to 1A, Tj=25˚C
f=10Hz to 100kHz
VI=28 to 38V, IO=100mA, f=120Hz
IO=1A, Tj=25˚C
1
0.5
170
Ripple rejection ratio
RR
50
dB
VDIF (min.)
ZO
Minimum input/output voltage difference
Output impedance
2
28
V
mΩ
mA
A
f=1kHz
IO (Short)
IO (Peak)
∆VO/Ta
Output short circuit current
Peak output current
VI=38V, Tj=25˚C
700
2
Tj=25˚C
mV/˚C
Output voltage temperature coefficient
IO=5mA, Tj=0 to 125˚C
–1.4
Note 1) The specified condition Tj=25˚C means that the test should be carried out with the test time so short (within 10ms) that the
drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=33V, IO=500mA, CI=0.33µF and CO=0.1µF.
*
AN7800 Series:15W, AN7800F Series:10.25W
■Characteristic Curve
PD –Ta (AN7800 Series)
PD –Ta (AN7800F Series)
VDIF (min.) –Tj
16
16
14
12
10
8
2.4
2.0
1.6
1.2
0.8
0.4
0
(1) Infinite Heat Sink
(1) Infinite Heat Sink
(2) 5˚C/W Heat Sink
(3) 15˚C/W Heat Sink
(4) No Heat Sink
(1)
(2)
(2) 5˚C/W Heat Sink
(3) 15˚C/W Heat Sink
(4) No Heat Sink
14
12
10
8
IO=1A
500mA
200mA
20mA
(1)
(2)
6
6
0mA
(3)
(4)
4
4
(3)
(4)
2
2
0
0
0
40
80
120
160
0
40
80
120
160
–40
0
40
80
120
160
Ambient Temperature Ta (˚C)
Ambient Temperature Ta (˚C)
Junction Temperature Tj (˚C)
Input Transient Response
Load Transient Response
Current Limiting Characteristic
20
15
10
5
7
AN7805
AN7805
VI=10V
Tj=25˚C
AN7805
2
1
0
6
5
4
3
2
1
0
10
0
1
0
–10
–20
–1
–2
0
2
4
6
8
10
0
10
20
30
40
50
0
0.6
1.2
0.8
2.4
Time t (µs)
Time t (µs)
Output Current IO (A)
■Basic Regulator Circuit
■Application Circuit
1) Current Boost Circuit
2) Adjustable Output Regulator
VO
VI
1
3
AN7800
Input
Output
VI
AN7800F
Q1
R2
1
3
VO
2
AN7800
AN7800F
3Ω
IO
CI
CO
Ibias
2
1
3
VO
0.1µF
R1
Common
AN7800
AN7800F
0.33µF
2
CI is set when the input line is long.
CO improves the transient response.
VO
R2
VO = VO + Ibias
+
R1
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