AN79L12/M [PANASONIC]
3-pin negative output voltage regulator (100 mA type); 3针负输出电压调节器（ 100毫安型）
| 型号： | AN79L12/M |
| 厂家： | 
PANASONIC |
| 描述： | 3-pin negative output voltage regulator (100 mA type) |
| 文件： | 总12页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Voltage Regulators
AN79Lxx/AN79LxxM Series
3-pin negative output voltage regulator (100 mA type)
I Overview
AN79Lxx series
Unit: mm
4.0 0.ꢀ
5.0 0.ꢀ
The AN79Lxx series and the AN79LxxM series are
3-pin, fixed negative output type monolithic voltage
regulators.
Stabilized fixed output voltage is obtained from un-
stable DC input voltage without using any external compo-
nents. 12 types of output voltage are available: −4V, −5V,
−6V, −7V, −8V, −9V, −10V, −12V, −15V, −18V, −20V
and −24V. They can be used widely in power circuits with
current capacity of up to 100mA.
ꢀ.3 0.ꢀ
0.6 0.15
+0.1
+0.1
0.43
0.43
–0.05
–0.05
ꢀ.54
3
I Features
• No external components
• Output voltage: −4V, −5V, −6V, −7V, −8V, −9V,−10V,
−12V, −15V, −18V, −20V, −24V
• Built-in overcurrent limit circuit
• Built-in thermal overload protection circuit
1 : Output
2 : Common
3 : Intput
ꢀ
1
SSIP003-P-0000
AN79LxxM series
Unit: mm
1.6 max.
4.6 max.
1.8 max.
0.58 max.
1.5
0.48 max.
0.44 max.
1.5
3.0
2
1 : Common
2 : Input
3 : Output
3
1
HSIP003-P-0000B
Note) The packages (SSIP003-P-0000 and HSIP003-
P-0000B) of this product will be changed to
lead-free type (SSIP003-P-0000S and
HSIP003-P-0000Q). See the new package di-
I Block Diagram (AN79Lxx series)
2
1
Common
(1)
mensions section later of this datasheet.
R1
+
Voltage
Error Amp.
R2
Q1
Reference
−
Output
(3)
Starter
Thermal
Pass Tr.
Protection
Current
Limiter
RSC
3
Input
(2)
Note) The number in ( ) shows the pin number for the AN79LxxM series.
Publication date: December 2001
SFF00006CEB
1
AN79Lxx/AN79LxxM Series
I Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Rating
Unit
V
1
*
*
−35
−40
650
Input voltage
VI
2
V
3
*
Power dissipation
PD
mW
°C
Operating ambient temperature
Topr
−20 to +80
−55 to +150
−55 to +125
AN79Lxx series
AN79LxxM series
Storage temperature
Tstg
°C
*
*
*
1 AN79L04, AN79L05/M, AN79L06, AN79L07, AN79L08/M, AN79L09/M, AN79L10, AN79L12/M, AN79L15/M, AN79L18
2 AN79L20, AN79L24
3 Follow the derating curve. When Tj exceeds 150°C, the internal circuit cuts off the output.
AN79LxxM series is mounted on a standard board (glass epoxy: 20mm × 20mm × t1.7mm with Cu foil of 1cm2 or more).
I Electrical Characteristics at Ta = 25°C
•
AN79L04 (−4V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
−3.84
−3.8
Typ
−4
Max
−4.16
−4.2
80
Unit
Tj = 25°C
V
Output voltage tolerance
VO
VI = −7 to −19V, IO = 1 to 70mA
VI = −6 to −20V, Tj = 25°C
VI = −7 to −17V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
40
10
4.5
3
60
30
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −7 to −19V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −7 to −17V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
38
Ripple rejection ratio
RR
55
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
− 0.4
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −9V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
SFF00006CEB
2
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L05, AN79L05M (−5V type)
Parameter
Symbol
VO
Conditions
Min
−4.8
Typ
−5
Max
−5.2
−5.25
100
50
Unit
Output voltage
Tj = 25°C
V
Output voltage tolerance
VO
VI = −8 to −20V, IO = 1 to 70mA
VI = −7 to −21V, Tj = 25°C
VI = −8 to −18V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
−4.75
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
11
5
60
30
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
3
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −8 to −20V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −8 to −18V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
40
Ripple rejection ratio
RR
55
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
− 0.4
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −10V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C (AN79L05) and Tj = 0 to 100°C
(AN79L05M)
•
AN79L06 (−6V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
5.76
5.7
Typ
Max
6.24
6.3
Unit
Tj = 25°C
−
−6
−
V
Output voltage tolerance
VO
VI = −9 to −21V, IO = 1 to 70mA
VI = −8 to −22V, Tj = 25°C
VI = −9 to −19V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
−
−
V
mV
mV
mV
mV
mA
mA
mA
µV
120
60
60
30
5
Line regulation
Load regulation
REGIN
REGL
12
5.5
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −9 to −21V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −9 to −19V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
44
Ripple rejection ratio
RR
55
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
0.4
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
−
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −11V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
SFF00006CEB
3
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L07 (−7V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
Typ
−7
Max
−7.28
−7.35
140
70
Unit
Tj = 25°C
−6.72
V
Output voltage tolerance
VO
VI = −10 to −22V, IO = 1 to 70mA −6.65
VI = −9 to −23V, Tj = 25°C
VI = −10 to −20V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
13
6
70
40
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
3
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −10 to −22V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
48
Ripple rejection ratio
VI = −10 to −20V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
54
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
− 0.5
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −12V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
•
AN79L08, AN79L08M (−8V type)
Parameter
Symbol
VO
Conditions
Min
−7.68
−7.6
Typ
−8
Max
−8.32
−8.4
160
80
Unit
Output voltage
Tj = 25°C
V
Output voltage tolerance
VO
VI = −11 to −23V, IO = 1 to 70mA
VI = −10 to −24V, Tj = 25°C
VI = −11 to −21V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
15
7
80
40
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
3
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −11 to −23V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −11 to −21V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
52
Ripple rejection ratio
RR
54
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
mA
mV/°C
IO = 5mA, Tj = 0 to 125°C
− 0.6
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −14V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C (AN79L08) and Tj = 0 to 100°C
(AN79L08M)
SFF00006CEB
4
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L09, AN79L09M (−9V type)
Parameter
Symbol
VO
Conditions
Min
Typ
−9
Max
−9.36
−9.45
160
80
Unit
Output voltage
Tj = 25°C
−8.64
V
Output voltage tolerance
VO
VI = −12 to −24V, IO = 1 to 70mA −8.55
VI = −11 to −25V, Tj = 25°C
VI = −12 to −22V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
16
8
90
50
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
3
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −12 to −24V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
58
Ripple rejection ratio
VI = −12 to −22V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
53
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA, Tj = 0 to 125°C
mA
mV/°C
− 0.6
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −15V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C (AN79L09) and Tj = 0 to 100°C
(AN79L09M)
•
AN79L10 (−10V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
−9.6
−9.5
Typ
−10
Max
−10.4
−10.5
160
80
Unit
Tj = 25°C
V
Output voltage tolerance
VO
VI = −13 to −25V, IO = 1 to 70mA
VI = −12 to −26V, Tj = 25°C
VI = −13 to −23V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
17
9
100
50
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
3
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −13 to −25V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −13 to −23V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
65
Ripple rejection ratio
RR
53
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
mA
mV/°C
IO = 5mA
− 0.7
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −16V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
SFF00006CEB
5
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L12, AN79L12M (−12V type)
Parameter
Symbol
VO
Conditions
Min
Typ
−12
Max
−12.5
−12.6
200
100
100
50
Unit
Output voltage
Tj = 25°C
−11.5
V
Output voltage tolerance
VO
VI = −15 to −27V, IO = 1 to 70mA −11.4
VI = −14.5 to −30V, Tj = 25°C
VI = −15 to −25V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
20
10
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −15 to −27V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
75
Ripple rejection ratio
VI = −15 to −25V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
52
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
− 0.8
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −19V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C (AN79L12) and Tj = 0 to 100°C
(AN79L12M)
•
AN79L15, AN79L15M (−15V type)
Parameter
Symbol
VO
Conditions
Min
Typ
−15
Max
−15.6
−15.75
200
100
130
60
Unit
Output voltage
Tj = 25°C
−14.4
V
Output voltage tolerance
VO
VI = −18 to −28V, IO = 1 to 70mA −14.25
VI = −17.5 to −33V, Tj = 25°C
VI = −18 to −28V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
25
12
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −18 to −30V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
90
Ripple rejection ratio
VI = −18 to −28V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
51
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
− 0.9
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −23V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C (AN79L15) and Tj = 0 to 100°C
(AN79L15M)
SFF00006CEB
6
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L18 (−18V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
Typ
−18
Max
−18.7
−18.9
200
100
160
80
Unit
Tj = 25°C
−17.3
V
Output voltage tolerance
VO
VI = −21 to −33V, IO = 1 to 70mA −17.1
VI = −21 to −33V, Tj = 25°C
VI = −21 to −32V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
30
15
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −21 to −33V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
110
Ripple rejection ratio
VI = −22 to −32V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
50
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
−1
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −27V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
•
AN79L20 (−20V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
−19.2
−19
Typ
−20
Max
−20.8
−21
200
100
180
90
Unit
Tj = 25°C
V
Output voltage tolerance
VO
VI = −23 to −35V, IO = 1 to 70mA
VI = −23 to −35V, Tj = 25°C
VI = −24 to −34V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
35
17
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
5
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −23 to −35V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
VI = −24 to −34V, f = 120Hz, Ta = 25°C
Tj = 25°C
0.5
0.1
135
Ripple rejection ratio
RR
49
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
−1
V
VI = −35V, Tj = 25°C
mA
mV/°C
IO = 5mA
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −29V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
SFF00006CEB
7
AN79Lxx/AN79LxxM Series
I Electrical Characteristics at Ta = 25°C (continued)
•
AN79L24 (−24V type)
Parameter
Output voltage
Symbol
VO
Conditions
Min
−23
Typ
−24
Max
−25
−25.2
200
100
200
100
5
Unit
Tj = 25°C
V
Output voltage tolerance
VO
VI = −27 to −38V, IO = 1 to 70mA −22.8
VI = −27 to −38V, Tj = 25°C
VI = −27 to −37V, Tj = 25°C
IO = 1 to 100mA, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
Tj = 25°C
V
mV
mV
mV
mV
mA
mA
mA
µV
Line regulation
Load regulation
REGIN
REGL
40
20
3
Bias current
IBias
∆IBias(IN)
∆IBias(L)
Vno
Bias current fluctuation to input
Bias current fluctuation to load
Output noise voltage
VI = −27 to −38V, Tj = 25°C
IO = 1 to 40mA, Tj = 25°C
f = 10Hz to 100kHz, Ta = 25°C
0.5
0.1
170
Ripple rejection ratio
VI = −28 to −38V, f = 120Hz, Ta = 25°C
Tj = 25°C
RR
49
dB
Minimum input/output voltage difference
Output short-circuit current
Output voltage temperature coefficient
VDIF(min)
IO(Short)
∆VO/Ta
0.8
200
−1
V
VI = −35V, Tj = 25°C
IO = 5mA
mA
mV/°C
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the
characteristic value drift due to the chip junction temperature rise can be ignored.
Note 2) Unless otherwise specified, VI = −33V, IO = 40mA, CI = 2µF, CO = 1µF, Tj = 0 to 125°C
I Main Characteristics
PD Ta (AN79Lxx series)
PD Ta (AN79LxxM series)
VO Tj
1.0
0.8
0.6
0.4
0.2
0
1.0
−5.12
−5.08
−5.04
−5.00
−4.96
−4.92
−4.88
−4.84
−4.80
Mounted on standard board
AN79L05
VI = −10V
IO = 1mA
(glass epoxy: 20 mm × 20 mm × t1.7mm
Independent IC
with Cu foil of 1cm2 or more)
without a heat sink
Rth(j-a) = 190°C/W
PD = 658mW (25°C)
0.8
0.6
0.4
0.2
0
0
20 40 60 80 100 120 140 160
0
20 40 60 80 100 120 140 160
−25
0
25
50
75
100 125
Ambient temperature Ta (°C)
Ambient temperature Ta (°C)
Junction temperature Tj (°C)
SFF00006CEB
8
AN79Lxx/AN79LxxM Series
I Main Characteristics (continued)
VDIF(min) Tj
Input transient response
Load transient response
1.4
20
AN79L05
AN79L05
AN79L05
200
100
0
15
10
5
1.2
IO = 100mA
1.0
1
0
10
0
0.8
0.6
−1
−2
−10
−20
0.4
−50
0
50
100
150
0
2
4
6
8
10
0
10
20
30
40
50
Junction temperature Tj (°C)
Time t (µs)
Time t (µs)
RR f
120
100
80
60
40
20
0
AN79L05
IO = 5mA
10
100
1k
10k
100k
Frequency f (Hz)
I Basic Regulator Circuit
−VI Input
Output −VO
3AN79Lxx1
2
−
−
CI
CO
+
Common
+
Connect CI of 2µF when the input line is long.
CO improves the transient response. 1µF
SFF00006CEB
9
AN79Lxx/AN79LxxM Series
I Usage Notes
1. Cautions for a basic circuit
CI: When a wiring from a smoothing circuit to a three-pin regulator
is long, it is likely to oscillate at output. A capacitor of 0.1µF to
0.47µF should be connected near an input pin.
Di
CO: Deadly needed to prevent from oscillation (0.33µF to 1.0µF). It
is recommended to use a capacitor of a small internal imped-
ance (ex. tantalum capacitor) when using it under a low tem-
perature.
VI
VO
1
3
CO
2
CI
When any sudden change of load current is likely to occur, con-
nect an electrolytic capacitor of 10µF to 100µF to improve a
transitional response of output voltage.
Di: Normally unnecessary. But add it in the case that there is a
residual voltage at the output capacitor Co even after switching
off the supply power because a current is likely to flow into an
output pin of the IC and damage the IC.
Figure 1
2. Other caution items
1) Short-circuit between the input pin and GND pin
If the input pin is short-circuitted to GND or is cut
off when a large capacitance capacitor has been con-
nected to the IC's load, a voltage of a capacitor con-
nected to an output pin is applied between input/out-
put of the IC and this likely results in damage of the
IC. It is necessary, therefore, to connect a diode, as
shown in figure 2, to counter the reverse bias between
input/output pins.
Output
1
3
In
Out
−
+
CO
2
GND
Figure 2
2) Floating of GND pin
If a GND pin is made floating in an operating mode, an unstabilized input voltage is outputted. In this case, a
thermal protection circuit inside the IC does not normally operate. In this state, if the load is short-circuited or
overloaded, it is likely to damage the IC.
I Application Circuit Example
−VO
−VI Input
Output
VO'
3
1
AN79Lxx
R2
2
Common
2µF
−
+
−
+
1µF
IBias
R1
R1
R2
|VO | = VO' 1 +
+ IQR1
Note) VO varies due to sample to sample variation of IBias
Never fail to adjust individually with R1 .
.
SFF00006CEB
10
AN79Lxx/AN79LxxM Series
I New Package Dimensions (Unit: mm)
•
SSIP003-P-0000S (Lead-free package)
4.00 0.20
5.00 0.20
0.60 0.15
0.40 0.10
2.30 0.20
+0.10
0.40
-
0.05
1
3
1.27
1.27
•
HSIP003-P-0000Q (Lead-free package)
4.50 0.10
1.55 0.20
1
3
+0.10
+0.10
+0.10
0.40
0.40
-0.05
0.42
-
0.05
-
0.05
M
0.15
+0.10
0.50
-
0.05
1.50
3.00
(0.75)
0.10
SFF00006CEB
11
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2001 MAR
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