HA17723/F/P
Precision Voltage Regulator
Description
The HA17723 high-accuracy general-purpose voltage regulator features a very low stand-by current,
(quiescent current) a low temperature drift, and high ripple rejection ratio. If you need over than 150mA
output current, adding external PNP or NPN transistor. This voltage regulator is suitable for various
applications, for example, series or parallel regulator, switching regulator.
Ordering Information
Type No.
Application
Package
HA17723
Commercial use
DP-14
HA17723F
FP-14DA
HA17723P
Industrial use
DP-14
Pin Arrangement
NC
CURRENT
LIMIT
CURRENT
SENSE
V
IN
()
V
IN
(+)
V
REF
V
EE
V
C
V
OUT
V
Z
NC
V
CC
NC
COMP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
(Top View)
HA17723/F/P
2
Circuit Schematic
V
CC
V
REF
V
IN
(+)
V
IN
()
V
EE
V
C
V
Z
V
OUT
COMP
CL
CS
HA17723/F/P
3
Absolute Maximum Ratings (Ta = 25C)
Item
Symbol
HA17723/P
HA17723F
Unit
Supply voltage
VCC
40
40
V
Input/Output voltage differential
Vdiff (IN-O)
40
40
V
Differential input voltage
V
IN
(diff)
5
5
V
Maximum output current
I
OUT
150
150
mA
Current from VREF
I
REF
15
15
mA
Power dissipation
P
T
830 (Note 1)
625 (Note 2)
mW
Operating temperature
Topr
0 to +70 / 20 to +75
0 to +70
C
Storage temperature
Tstg
55 to +125
55 to +125
C
Notes: 1. Above 25
C derate by 8.3mW/
C
2. Allowable temperature of IC junction part, Tj (max), is as shown below.
Tj (max) =
j - a Pc (max)+Ta
(
j - a is thermal resistance value during mounting, and Pc (max) is the maximum value of IC
power dissipation.)
Therefore, to keep Tj (max)
125
C, wiring density and board material must be selected
according to the board thermal conductivity ratio shown below.
Be careful that the value of Pc (max) does not exceed that P
T
.
40 mm
Board
0.8 t ceramic or
1.5 t epoxy
0.5
1
2
5
10
20
Board thermal conductivity (W/m
C)
240
Thermal resistance
ja (
C/W)
2
1
3
220
200
180
160
140
120
100
80
SOP14
using paste
containing
compound
SOP14
without compound
(1)
Glass epoxy board with 10% wiring density
(2)
Glass epoxy board with 30% wiring density
(3)
Ceramic board with 96% alumina coefficient
HA17723/F/P
4
Electrical Characteristics (Ta = 25C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Line regulation
V
O
Line
--
0.01
0.1
%
V
IN
= 12 to 15V
--
0.1
0.5
%
V
IN
= 12 to 40V
--
--
0.4
%
V
IN
= 12 to 15V,
TA = 20 to +75
C
--
--
0.3
%
V
IN
= 12 to 15V,
Ta = 0 to +70
C
Load regulation
V
O
Load
--
0.03
0.2
%
I
OUT
= 1 to 50mA
--
--
0.7
%
V
IN
= 12 to 15V,
TA = 20 to +75
C
--
--
0.6
%
I
OUT
= 1 to 50mA,
Ta = 0 to +70
C
Ripple rejection
R
REJ
--
74
--
dB
f = 50Hz to
10kHz
C
REF
= 0
--
86
--
C
REF
= 5
F
Average temperature
coefficient of output voltage
V
O
/
T
--
0.003
0.018
%/
C
TA = 20 to +75
C
--
0.003
0.015
%/
C
Ta = 0 to +70
C
Reference voltage
V
REF
6.80
7.15
7.50
V
V
IN
= V
CC
= V
C
= 12V,
V
EE
= 0
Standby current
I
ST
--
--
4.0
mA
V
IN
= 30V, I
L
= 0
Short circuit current limit
I
SC
--
65
--
mA
R
SC
= 10
, V
OUT
= 0
Electrical Characteristics Measuring Circuit
V
IN
V
CC
V
EE
V
OUT
V
REF
C
REF
V
IN
(+)
V
IN
(+)
V
OUT
V
C
R
1
R
3
R
SC
C
1
R
2
CL
CS
COMP
V
IN
= V
CC
= V
C
= 12V, V
EE
= 0, V
OUT
= 5.0V, I
L
= 1mA,
R
SC
= 0, C
1
= 100pF, C
REF
= 0, R
2
5k
, R
3
= R
1
R
2
/(R
1
+R
2
)
HA17723/F/P
5
HA17723 Applications
Fixed Voltage Source in Series
Low Voltage (2 to 7 V) Regulator: Figure 1 shows the construction of a basic low voltage regulator. The
divider (resistors R
1
and R
2
) from V
REF
makes the reference voltage, which will be provided to the
noninverted input of the error amplifier, less than output voltage. In the fixed voltage source where the
output voltage will be fed back to the error amplifier directly as shown in figure 1. Output voltage will be
divided VREF since the output voltage is equal to the reference voltage.
Thus, the output voltage V
OUT
is:
V
OUT
= nV
REF
, n =
R
2
R
1
+ R
2
COMP
V
IN
V
CC
V
OUT
V
OUT
V
EE
CL
CS
V
REF
R
1
2.15k
R
3
1.5k
R
2
4.99k
C
1
100pF
C
REF
1
F
V
IN
(+)
R
SC
= 0
V
IN
()
V
C
Figure 1 Low Voltage (2 to 7 V) Regulator
High Voltage (7 to 37 V) Regulator: Figure 2 shows the construction of a regulator whose output voltage
is higher than the reference voltage, V
REF
. V
REF
is added to the non-inverted input of the error amplifier via
a resistor, R
3
. The feedback voltage is produced by dividing the output voltage with resistors R
1
and R
2
.
Thus, the output voltage V
OUT
is:
V
OUT
=
, n =
V
REF
n
R
2
R
1
+ R
2
COMP
V
IN
V
CC
V
EE
V
REF
R
SC
= 0
V
IN
(+)
R
1
7.87k
R
2
7.15k
C
1
100pF
R
3
3.8k
V
IN
()
V
OUT
V
OUT
CL
CS
V
C
Figure 2 High Voltage (7 to 37 V) Regulator
HA17723/F/P
6
Negative Voltage Regulator: Figure 3 shows the construction of a so-called negative voltage regulator,
which generates a negative output voltage with regard to GND. Assume that the output voltage, V
OUT
,
increases in the negative direction. As the voltage across the R
1
is larger than that across the R
3
, which
provides the reference voltage, the output current of the error amplifier increases. In the control circuit, the
impedance decreases with the increase of input current, which makes the base current of the external
transistor Q approach GND. As a result, the output voltage returns to the established value and output
voltage is stable.
The output voltage VOUT of this circuit is:
V
OUT
=
=
V
REF
V
REF
R
3
R
3
+ R
4
(R
1
+ R
2
) (R
3
+ R
4
)
R
2
(R
3
+ R
4
) R
4
(R
1
+ R
2
)
R
1
+ R
2
R
3
+ R
4
R
3
R
1
CL
CS
COMP
V
IN
V
C
V
REF
V
IN
(+) V
IN
()
V
OUT
V
OUT
V
Z
C
1
100pF
R
2
11.5k
R
5
2k
R
4
3k
R
3
3k
R
1
3.65k
V
CC
V
EE
Q
Figure 3 Negative Voltage Regulator
How to Increase the Output Current: To increase the output current, you must increase the current
capacity of the control circuit. Figures 4 and 5 show examples with external transistors.
CL
CS
COMP
V
IN
V
CC
V
EE
V
REF
R
SC
0.7
R
1
7.87k
R
2
7.15k
C
1
500pF
V
OUT
V
OUT
V
IN
(+)
V
IN
()
V
C
Q
Figure 4 Increasing Output Current (1)
HA17723/F/P
7
CL
CS
COMP
Q
V
IN
V
CC
V
EE
V
REF
R
1
2.15k
R
SC
0.4
C
1
1nF
R
2
5.0k
V
IN
(+) V
IN
()
V
OUT
V
OUT
R
3
60
V
C
Figure 5 Increasing Output Current (2)
Fixed Voltage Source in Parallel Control
Figure 6 shows the circuit of a fixed voltage source in parallel control.
CL
CS
COMP
V
CC
V
EE
V
REF
R
3
100
R
4
100
R
1
2k
C
1
5nF
R
2
5k
V
IN
()
V
OUT
V
OUT
V
Z
V
C
Q
1
V
IN
Figure 6 Fixed Voltage Source in Shunt Regulator
Switching Regulator
Figure 7 shows a switching regulator circuit. The error amplifier, control circuit, and forward feedback
circuit R
4
and R
3
operate in together as a comparator, and make the external transistors Q
1
and Q
2
to turn
on/off. In this circuit, the self-oscillation stabilizes the output voltage and the change in output is absorbed
by the changes of the switches conducting period.
Figures 8 and 9 show a negative voltage switching regulator circuit and its characteristics.
HA17723/F/P
8
V
IN
Q
2
Q
1
D
1
V
CC
V
EE
V
REF
V
OUT
V
IN
(+)V
IN
()
R
5
3k
R
1
2.15k
R
4
1M
5k
51
1k
R
2
R
3
R
6
C
1
0.1
F
C
2
100
F
V
OUT
5V
L
1
1.2mH
100
V
C
CL
CS
COMP
Figure 7 Positive Voltage Switching Regulator
V
IN
Q
1
D
1
Q
2
V
CC
V
EE
V
REF
R
2
4k
R
7
1k
V
OUT
15V
L
1
1.2mH
R
6
220
100
R
5
C
1
15pF
R
4
1M
R
1
3.65k
C
1
0.1
F
C
2
100
F
R
3
1k
V
OUT
V
Z
V
IN
(+) V
IN
()
V
C
CS
COMP
CL
Figure 8 Negative Voltage Switching Regulator
HA17723/F/P
9
4
8
12
16
20
24
28
32
36
40
24
20
16
12
8
4
Input Voltage V
IN
(V)
Input Output Characteristics
Ta = 25
C
Output Voltage V
OUT
(V)
25
75
24
28
32
36
40
15.360
15.340
15.320
15.300
15.280
15.260
15.240
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
I
OUT
= 0.2A
Ta = 25
C
Line Regulation
15.600
15.500
15.400
15.300
15.200
15.100
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8 2.0
Output Current I
OUT
(A)
Load Regulation
25
75
Ta = 25
C
V
IN
= 25 V
Output Voltage V
OUT
(V)
Figure 9 Negative Voltage Switching Regulator Operating Characteristics
HA17723/F/P
10
Floating-Type Fixed Voltage Source
Voltage sources of the floating type or boost type are typically employed when high voltage output is
required. Figure 10 shows the circuit of a floating-type fixed voltage source. Considering the stabilization
in this circuit, assume that the output voltage increases. At the input terminal of the error amplifier the non-
inverted input will become low compared with the inverted input, and the output current of the error
amplifier decreases. Then, the current from the terminal V
Z
in the control circuit decreases. As a result the
base current of the external resistor Q
1
will decrease and collector current will decrease, controlling
increase of the output voltage.
The output voltage V
OUT
in the circuit in figure 10
V
OUT
=
1 V
REF
R
1
+ R
2
R
3
+ R
4
R
4
R
1
Figure 11 is the circuit diagram of a negative fixed voltage source in floating type.
CS
COMP
CL
2.0W
Q
D 12 V
HZ12
H
V
IN
V
CC
R
5
6.2k
R
SC
1
R
4
3.0k
C
1
1nF
R
3
3.0k
R
2
53.7k
R
1
3.57k
V
REF
V
IN
(+)
V
EE
V
IN
()
V
OUT
V
Z
V
OUT
V
C
Figure 10 Positive Voltage Floating Regulator
CL
COMP
V
IN
V
REF
V
IN
(+)
R
6
10k
R
4
3k
R
1
3.57k
R
2
97.6k
R
3
3k
R
5
10k
C
1
100pF
V
IN
()
V
OUT
V
OUT
V
Z
V
CC
V
EE
V
C
CS
D12 V
HZ12 H
Q
Figure 11 Negative Voltage Floating Regulator
HA17723/F/P
11
Fixed Voltage Source with Reduction Type Current Limiter
V
IN
V
CC
V
EE
V
REF
V
IN
(+)
R
SC
30
R
3
2.7k
C
1
1nF
R
2
2.15k
R
1
5.0k
R
4
5.6k
V
IN
()
V
OUT
V
OUT
V
C
CL
CS
COMP
Figure 12 Fixed Voltage Source with Reduction Type Current Limiter
6.0
5.0
4.0
3.0
2.0
1.0
0
0
100
200
Output Current I
OUT
(mA)
Output Voltage V
OUT
(V)
I
OS
=
I
OS
V
BE
R
3
+
R
4
R
4
R
SC
I
OP
= I
OS
+
V
O
R
3
R
4
R
SC
V
O
I
OP
Figure 13 Current Control Characteristics of Fixed Voltage Source
with Reduction Type Current Limiter
HA17723/F/P
12
Fixed Voltage Source Switching External Control
CS
COMP
V
IN
V
REF
V
IN
(+)
R
1
2.15k
R
2
4.99k
R
3
2k
R
SC
5
R
4
2k
C
1
1nF
T
1
V
IN
()
V
OUT
V
OUT
V
OUT
10V
V
CC
V
EE
V
C
CL
Control Signal
Note: Insert when
Note
2SC458 K
Figure 14 Fixed Voltage Source Switching External Control
Time (sec)
Output Voltage V
OUT
(V)
6
5
4
3
2
1
0
0
4
8
12
16
20
24
28
32
36
40
Ta = 25
C
Figure 15 Operating Characteristics of Fixed Voltage Source Switching External Control
HA17723/F/P
13
Characteristic Curves
0.2
0
10
20
30
V
OUT
= +5V
V
IN
= 12V
R
SC
= 10
Ta = 75
C
25
20
0.1
Output Current I
OUT
(mA)
1.2
1.0
0.8
0.6
0.4
0.2
0
20
40
60
80
100
120
V
OUT
= +5V
V
IN
= +12V
R
SC
= 10
Ta = 75
C 25 20
Relative Output Voltage (V/V)
Output Current I
OUT
(mA)
5
4
3
2
0
10
20
30
40
50
25
75
V
OUT
= V
REF
I
OUT
= 0
Ta = 20
C
Stand-by Current I
ST
(mA)
Input Voltage V
IN
(V)
1
0
20
40
60
80
100
0.1
0.2
25
V
OUT
= +5V
V
IN
= +12V
R
SC
= 0
Output Current I
OUT
Load Regulation
V
O Load
(%)
Load Regulation
V
O Load
(%)
20
Ta = 75
C
Load Regulation vs. Output Current-1
Load Regulation vs. Output Current-2
Relative Output Voltage vs. Output Current
Stand-by Current vs. Input Voltage
HA17723/F/P
14
100
0
100
200
Limit Current I
SC
(mA)
Junction Temperature Tj(
C)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Sense Voltage V
SC
(V)
200
150
100
50
Input/Output Voltage Differential Vdiff(IN-O) (V)
0.2
Line Regulation vs.
Input/Output Voltage Differential-1
Line Regulation vs.
Input/Output Voltage Differential-2
0.1
0
5
5
15
25
35
45
Line Regulation
V
O Line
(%)
V
OUT
= +5V
R
SC
= 0
I
OUT
= 1mA
V = +3V
5
5
15
25
35
45
0
0.1
0.2
V
OUT
= +5V
R
SC
= 0
I
OUT
= 1mA to
50mA
Input/Output Voltage Differential Vdiff(IN-O) (V)
Line Regulation
V
O Line
(%)
Limit Current
R
SC
= 5
R
SC
= 10
Sense Voltage
Current Limiting Characteristics
Line Transient Response
Input Voltage Differential V
IN
(dev) (V)
10
5
0
5
10
6
4
2
0
2
4
5
s/div
Time (
s)
Output Voltage Differential V
O
(dev) (mV)
Input Voltage
Output Voltage
V
IN
= +12V
V
OUT
= +5V
I
OUT
= 1mA
R
SC
= 0
HA17723/F/P
15
10
5
0
Output Current Differential I
O
(dev) (mA)
10
5
0
5
5
5
s/div
Time (
s)
Output Voltage Differential V
O
(dev) (mV)
Output Voltage
Output Current
V
IN
= +12V
V
OUT
= +5V
I
OUT
= 40mA
R
SC
= 0
Output Impedance Zout (
)
10
1.0
0.1
100
1 k
10 k
100 k
1 M
Frequency f (Hz)
V
OUT
= 5V
V
IN
= +12V
R
SC
= 0
I
L
= 50mA
C
L
= 1
F
C
L
= 0
Load Transient Response
Output Impedance vs. Frequency
HA17723/F/P
16
Package Dimensions
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-14
Conforms
Conforms
0.97 g
Unit: mm
7.62
0.25
0
15
19.20
20.32 Max
1
8
14
7
1.30
2.54
0.25
0.48
0.10
6.30
7.40 Max
0.51 Min
2.54 Min
5.06 Max
+ 0.10
0.05
2.39 Max
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-14DA
--
Conforms
0.23 g
Unit: mm
*Dimension including the plating thickness
Base material dimension
*0.22
0.05
*0.42
0.08
0.70
0.20
0.12
0.15
0
8
M
0.10
0.10
2.20 Max
5.5
10.06
1.42 Max
14
8
1
7
10.5 Max
+ 0.20
0.30
7.80
1.15
1.27
0.40
0.06
0.20
0.04
HA17723/F/P
17
Cautions
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copyright, trademark, or other intellectual property rights for information contained in this document.
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intellectual property rights, in connection with use of the information contained in this document.
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received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi's sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor
products.
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Tun-Hwa North Road, Taipei (105)
Tel: <886> (2) 2718-3666
Fax: <886> (2) 2718-8180
Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower, World Finance Centre,
Harbour City, Canton Road, Tsim Sha Tsui,
Kowloon, Hong Kong
Tel: <852> (2) 735 9218
Fax: <852> (2) 730 0281
Telex: 40815 HITEC HX
Hitachi Europe Ltd.
Electronic Components Group.
Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire SL6 8YA, United Kingdom
Tel: <44> (1628) 585000
Fax: <44> (1628) 778322
Hitachi Europe GmbH
Electronic components Group
Dornacher Stra
e 3
D-85622 Feldkirchen, Munich
Germany
Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00
Hitachi Semiconductor
(America) Inc.
179 East Tasman Drive,
San Jose,CA 95134
Tel: <1> (408) 433-1990
Fax: <1>(408) 433-0223
For further information write to:
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