Voltage Regulators
1
AN7700, AN7700F, AN7700SP Series
Low-dropout three-pin voltage regulator 1.2-A type
s
Overview
The AN7700, AN7700F, and AN7700SP series are
stabilized constant-voltage power supplies with small dif-
ference between I/O voltages (0.5 V typ.). They are suit-
able for low-voltage, battery-driven equipment, and home
appliances and industrial equipment with great fluctua-
tion of the supply voltage.
The output voltage ranges:
For AN7700, AN7700F
3 V, 4 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V,
18 V, 20 V, and 24 V
For AN7700SP
3.3 V, 3.5 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V,
and 15 V
s
Features
Minimum I/O voltage difference: 0.5 V (typ.)
On-chip overcurrent limiter
On-chip thermal protection circuit
On-chip inrush current protection circuit at the time of
input voltage start-up
On-chip input short-circuit protection circuit
(When the input pin is short-circuited to the ground, the
circuit between pins 1 and 3 is shut down to prevent
current flow.)
s
Applications
Power supply equipment
AN7700 series
Unit: mm
2.54 2.54
0.8
(2.0) (2.5)
10.50.3
+0.15
0.05
1.4
+0.15
0.05
0.45
+0.2
0.0
(4.5)
8.70.2
15.40.2
2.90.1
12.50.2
17.00.2
26.10.2
29.00.3
(13.6)
(10.35)
4.50.2
10.00.3
1.40.1
3.70.1
TO-220 Package (HSIP003-P-0000)
AN7700F series
Unit: mm
4.50.3
1.40.2
3.10.1
10.50.3
2.770.3
13.60.25
16.70.3
17.00.25
4.20.25
8.70.3
3.8
0.25
4.50.25
2.54
0.80.2
(0.4)
1
2
3
2.50.25
2.0
0.25
5.3
(4.3)
(1.73)
0.4
+0.1
0.05
TO-220F Package (HSIP003-P-0000A)
AN7700SP series
Unit: mm
6.50
0.10
5.30
0.10
4.35
0.20
4.60
0.10
2.30
0.75
0.10
1
2
3
0.80
max.
1.00
0.30
1.80
0.30
1.00
0.20
0.10
0.05
0.55
0.15
3.00
0.20
2.50
0.20
5.50
0.20
0.20
max.
9.80
0.10
7.30
0.10
2.30
0.10
U-type Package
AN7700, AN7700F, AN7700SP Series
Voltage Regulators
2
s
Block Diagram
Overcurrent
limiter
Error amplifier
Inrush current
protection
Input short-circuit
protection
Output stage
Thermal
protection
V
o
ltage reference
Starter
Output dri
v
er
V
REF
R1
1
2
3
R2
s
Pin Descriptions
Pin No.
Description
1
Input pin (In)
2
Ground pin (COM)
3
Output pin (Out)
s
Absolute Maximum Ratings at T
a
=
25
C
Parameter
Symbol
Rating
Unit
Supply voltage
*2
V
IN
30
V
Supply current
*3
I
IN
2.4
A
Power dissipation
*4
AN7700 series
P
D
15
W
AN7700F series
10.25
AN7700SP series
5.0
Operating ambient temperature
*1
T
opr
-
30 to
+
85
C
Storage temperature
*1
T
stg
-
55 to
+
150
C
Note) *1: Expect for the operating ambient temperature, and storage temperature, all ratings are for T
a
=
25
C.
*2: At the application of V
IN
=
30 V, the overvoltage protection may be operated by the ASO protection circuit, leading to the
output shut down.
*3: The current value does not exceed this criterion because of the on-chip current limiter.
*4: The internal circuit shuts off the output when T
j
150
C (designed value). The relationship between the IC power
dissipation and ambient temperature shall conform to the derating curve (s Characteristic curve chart P
D
T
a
).
Voltage Regulators
AN7700, AN7700F, AN7700SP Series
3
s
Recommended Operating Conditions at I
OUT
=
500 mA, T
a
=
25
C
Part No.
Output voltage
Operating supply voltage range (V
IN
)
Unit
AN7703/F
3
4 to 14
V
AN77033SP
3.3
4.3 to 14
V
AN77035SP
3.5
4.5 to 14
V
AN7704/F
4
5 to 15
V
AN7705/F/SP
5
6 to 16
V
AN7706/F/SP
6
7 to 17
V
AN7707/F/SP
7
8 to 18
V
AN7708/F/SP
8
9 to 19
V
AN7709/F/SP
9
10 to 20
V
AN7710/F/SP
10
11 to 21
V
AN7712/F/SP
12
13 to 23
V
AN7715/F/SP
15
16.5 to 26.5
V
AN7718/F
18
19.5 to 29.5
V
AN7720/F
20
21.5 to 29.5
V
AN7724/F
24
25.5 to 29.5
V
AN7700, AN7700F, AN7700SP Series
Voltage Regulators
4
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output voltage
V
OUT
V
IN
=
4 V, I
OUT
=
500 mA,
2.91
3.00
3.09
V
T
j
=
25
C
Line regulation
REG
IN
V
IN
=
4 V to 14 V, I
OUT
=
500 mA,
3
30
mV
T
j
=
25
C
Load regulation
REG
LOA
V
IN
=
4 V, I
OUT
=
0 mA to 1 200 mA,
15
60
mV
T
j
=
25
C
Input dependency of bias current
I
Bias(IN)
V
IN
=
4 V to 14 V, I
OUT
=
500 mA,
1
10
mA
T
j
=
25
C
Load dependency of bias current
I
Bias(LOA)
V
IN
=
4 V, I
OUT
=
0 mA to 1 200 mA,
10
50
mA
T
j
=
25
C
Bias current at no load
I
Bias
V
IN
=
4 V, I
OUT
=
0 mA
2.6
5.0
mA
Bias current
I
rush
V
IN
=
2.7 V, I
OUT
=
0 mA
3
5
mA
before the regulation starts
Minimum I/O voltage difference 1 V
DIF(min)1
V
IN
=
3.5 V, I
OUT
=
500 mA,
0.4
0.6
V
T
j
=
25
C
Minimum I/O voltage difference 2 V
DIF(min)2
V
IN
=
3.5 V, I
OUT
=
1 200 mA,
0.5
1.0
V
T
j
=
25
C
Peak output current 1
*
I
O(Peak)1
V
IN
=
4 V, T
j
=
25
C
1.2
1.8
2.4
A
Peak output current 2
*
I
O(Peak)2
V
IN
=
13 V, T
j
=
25
C
1.0
1.5
2.0
A
Peak output current 3
*
I
O(Peak)3
V
IN
=
18 V, T
j
=
25
C
0.5
1.0
1.5
A
Ripple rejection ratio
RR
V
IN
=
4 V to 6 V, I
OUT
=
100 mA,
54
74
dB
f
=
120 Hz
s
Electrical Characteristics at T
a
=
25
C
AN7703/F (3-V type)
Note) *: This current exceeds P
D(max)
because it is a parameter during abnormal (overcurrent) operation. However, normally,
it shall conform to the derating curve ( s Characteristic curve chart P
D
T
a
).
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output short-circuit current
I
O(Short)
V
IN
=
30 V, T
j
=
25
C
10
mA
The load is shorted.
Thermal protection operating
T
j(TH)
V
IN
=
4 V
150
C
temperature
Output voltage temperature
a
V
IN
=
5 V, T
j
=
25
C to 125
C
-
40
ppm/
C
coefficient
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Voltage Regulators
AN7700, AN7700F, AN7700SP Series
5
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output voltage
V
OUT
V
IN
=
4.3 V, I
OUT
=
500 mA,
3.20
3.30
3.40
V
T
j
=
25
C
Line regulation
REG
IN
V
IN
=
4.3 V to 14.3 V,
3
35
mV
I
OUT
=
500 mA, T
j
=
25
C
Load regulation
REG
LOA
V
IN
=
4.3 V,
15
70
mV
I
OUT
=
0 mA to 1 200 mA, T
j
=
25
C
Input dependency of bias current
I
Bias(IN)
V
IN
=
4.3 V to 14.3 V,
1
10
mA
I
OUT
=
500 mA, T
j
=
25
C
Load depndency of bias current
I
Bias(LOA)
V
IN
=
4.3 V,
10
50
mA
I
OUT
=
0 mA to 1 200 mA, T
j
=
25
C
Bias current at no load
I
Bias
V
IN
=
4.3 V, I
OUT
=
0 mA
2.6
5.0
mA
Bias current
I
rush
V
IN
=
3.0 V, I
OUT
=
0 mA
3
5
mA
before the regulation starts
Minimum I/O voltage difference 1 V
DIF(min)1
V
IN
=
3.7 V, I
OUT
=
500 mA,
0.4
0.6
V
T
j
=
25
C
Minimum I/O voltage difference 2 V
DIF(min)2
V
IN
=
3.7 V, I
OUT
=
1 200 mA,
0.5
1.0
V
T
j
=
25
C
Peak output current 1
*
I
O(Peak)1
V
IN
=
4.3 V, T
j
=
25
C
1.2
1.8
2.4
A
Ripple rejection ratio
RR
V
IN
=
4.3 V to 8.0 V,
53
74
dB
I
OUT
=
100 mA, f
=
120 Hz
s
Electrical Characteristics at T
a
=
25
C (continued)
AN77033SP (3.3-V type)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Peak output current 2
*
I
O(Peak)2
V
IN
=
13.3 V, T
j
=
25
C
1.5
A
Peak output current 3
*
I
O(Peak)3
V
IN
=
18.3 V, T
j
=
25
C
1.0
A
Output short-circuit current
I
O(Short)
V
IN
=
30 V, T
j
=
25
C
10
mA
The load is shorted.
Thermal protection operating
T
j(TH)
V
IN
=
4.3 V
150
C
temperature
Output voltage temperature
a
V
IN
=
4.3 V, T
j
=
25
C to 125
C
-
40
ppm/
C
coefficient
Note) *: This current exceeds P
D(max)
because it is a parameter during abnormal (overcurrent) operation. However, normally,
it shall conform to the derating curve ( s Characteristic curve chart P
D
T
a
).
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Note) *: This current exceeds P
D(max)
because it is a parameter during abnormal (overcurrent) operation. However, normally,
it shall conform to the derating curve ( s Characteristic curve chart P
D
T
a
).
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