R1501x SERIES
1A LDO REGULATOR
(Operating Voltage up to 24V)
NO.EA-184-080910
OUTLINE
The R1501x series are CMOS-based positive voltage regulator (VR) ICs. The R1501xxxxB has features of high
input voltage operating, 1A output current drive, and low supply current.
A DMOS transistor is used for the driver, high voltage operating and low on resistance (0.6Ω at V
OUT
=10V)
device is realized. A standard regulator circuit with a current limit circuit and a thermal shutdown circuit are built
in the R1501x series.
As the operating temperature range is from -40°C to 105°C and maximum input voltage is up to 24V, the
R1501x series are suitable for the constant voltage source for digital home appliances and car accessories.
The regulator output voltage is fixed in the R1501x. Output voltage accuracy is ±2.0% and output voltage range
is from 3.0V to 12.0V with a step of 0.1V, and from 12.5V to 18.0V with a step of 0.5V. The chip enable pin
realizes ultra low supply current standby mode.
Since the packages for these ICs are the HSOP-6J for high density mounting of the ICs on boards, and the
TO-252-5-P2.
∗)
The DMOS (Double Diffused MOS) transistor adopted by R1501x is characterized by a double diffusion structure which
comprises a low density n-type (channel) diffused layer and a high density p-type (sources) diffused layer from the edge
of the gate electrode. The R1501x series possess outstanding properties of high operating voltage and low on-resistance,
which have been achieved by the channel length scaled down to submicron dimensions and decreased thickness of the
gate oxide film.
FEATURES
•
•
•
•
•
•
•
•
•
•
Input Voltage Range ...................................................3.0V to 24.0V
Supply Current .............................................................Typ. 70µA
Standby Current ...........................................................Typ. 0.1µA
Ripple Rejection .........................................................Typ. 60dB (V
OUT
=5.0V)
Temperature-Drift Coefficient of Output Voltage ..........Typ.
±100ppm/°C
Output Current..............................................................Min. 1A
Line Regulation ............................................................Typ. 0.05%/V
Output Voltage Accuracy..............................................±2%
Packages......................................................................HSOP-6J, TO-252-5-P2
Output Voltage..............................................................Stepwise setting with a step of 0.1V in the range of
3.0V to 12.0V, and with a step of 0.5V in the range
of 12.5V to 18.0V is possible.
Built-in Current Limit Circuit
Built-in Fold-Back Circuit
Built-in Thermal Shutdown Circuit
Operating Temperature range ......................................−40°C to 105°C
•
•
•
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APPLICATIONS
•
•
•
•
Power source for home appliances such as refrigerators, rice cookers, electoric water warmers, etc.
Power source for car audio equipment, car navigation system, ETC system, etc.
Power source for notebook PCs, digital TVs, cordless phones, and private LAN system, etc.
Power source for office equipment machines such as copiers, printers, facsimiles, scanners, projectors, etc.
1
R1501x
BLOCK DIAGRAMS
R1501xxxxB
Thermal Shutdown
Circuit
V
DD
V
OUT
Vref
Short
Protection Current Limit
CE
GND
SELECTION GUIDE
The output voltage, the active type, and the taping type for the ICs can be selected at the user’s request.
The selection can be made with designating the part number as shown below;
R1501xxxxB-xx-x
←Part
Number
↑ ↑ ↑ ↑ ↑
a b c d e
Code
a
Contents
Designation of Package Type:
S: HSOP-6J
J: TO-252-5-P2
Setting Output Voltage (V
OUT
):
Stepwise setting with a step of 0.1V in the range of 3.0V to 12.0V, and with a step of
0.5V in the range of 12.5V to 18.0V is possible.
Designation of Active Type:
B: active high
Designation of Taping Type:
E2: HSOP-6J
T1: TO-252-5-P2
(Refer to Taping Specifications)
Designation of composition of pin plating:
-F: Lead free solder plating (HSOP-6J, TO-252-5-P2)
b
c
d
e
2
R1501x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
T
opt
Tj
T
stg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (HSOP-6J)*
Power Dissipation (TO-252-5-P2)*
Operating Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Item
Rating
−0.3
to 36
−0.3
to V
IN
+
0.3
−0.3
to V
IN
+
0.3
2.0
1700
1900
−40
to 105
−40
to 125
−55
to 125
<
=
<
=
Unit
V
36
36
V
V
A
mW
°C
°C
°C
*) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge.
And the semiconductor devices may receive serious damage when they continue to operate over the
recommended operating conditions.
4
R1501x
ELECTRICAL CHARACTERISTICS
•
R1501xxxxB
V
IN
=V
OUT
+1.0V,
V
CE
=V
IN
, unless otherwise noted.
The specification in
is checked and guaranteed by design engineering at
−40°C
Symbol
V
IN
I
SS
I
standby
V
OUT
I
OUT
∆V
OUT
/∆I
OUT
∆V
OUT
/∆V
IN
Item
Input Voltage
Supply Current
Standby Current
Output Voltage
Output Current
Load Regulation
0.1mA
0.1mA
<
=
<
=
<
=
<
=
T
opt
Typ.
70
0.1
105°C.
Topt=25°C
Conditions
V
IN
=24V,
I
OUT
=0A
V
IN
=24V,
V
CE
=0V
I
OUT
=1mA
T
opt
=25°C
−40°C
I
OUT
I
OUT
<
=
<
=
<
=
<
=
Min.
3
Max.
24
160
1.0
×1.02
×1.035
Unit
V
µA
µA
V
V
A
mV
mV
%/V
×0.98
<
=
T
opt
105°C
×0.965
1
25
125
0.05
0.135
0.115
0.095
0.090
0.675
0.575
0.475
0.450
±100
65
200mA
1A
∗guaranteed
by design
engineering
60
300
0.1
0.225
0.180
0.155
0.140
1.125
0.900
0.775
0.700
Line Regulation
V
OUT
+1V
V
IN
<
=
24V, I
OUT
=10mA
3.0V
<
=
<
=
<
=
<
=
<
=
<
=
<
=
<
=
V
OUT
< 5.0V
V
OUT
< 9.0V
V
OUT
< 12.0V
V
OUT
<
=
I
OUT
=200mA
V
DIF
Dropout Voltage
I
OUT
=1A
∗guaranteed
by
design engineering
5.0V
9.0V
12.0V
3.0V
5.0V
9.0V
12.0V
V
18.0V
V
OUT
< 5.0V
V
OUT
< 9.0V
V
OUT
< 12.0V
V
OUT
<
=
V
18.0V
∆V
OUT
/∆T
opt
I
lim
RR
V
CEH
V
CEL
T
TSD
T
TSR
Output Voltage
Temperature Coefficient
Short Current Limit
Ripple Rejection
CE Input Voltage "H"
CE Input Voltage "L"
Thermal Shutdown
Temperature
Thermal Shutdown
Released Temperature
I
OUT
=1mA
−40°C
<
T
opt
=
<
=
105°C
V
OUT
<
=
ppm
/°C
mA
dB
V
OUT
=0V
f=1kHz,
Ripple 0.5Vp-p,
I
OUT
=100mA,
V
IN
=V
OUT
+2V
6.0V
60
50
2.0
0
V
IN
0.5
160
135
V
V
°C
°C
V
OUT
> 6.0V
Junction Temperature
Junction Temperature
All of unit are tested and specified under load conditions such that T
opt
=25°C except for Output Voltage
Temperature Coefficient, Ripple Rejection, Thermal Shutdown Temperature, Thermal Shutdown Released
Temperature, Load Regulation at 0.1mA
<
I
OUT
<
1A, Dropout Voltage at I
OUT
=1A.
=
=
5
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