R1500H Series
500 mA LDO Regulator (Operating Voltage up to 24 V) for Automotive Applications
NO.EC-151-131119
OUTLINE
The R1500x series are CMOS-based positive voltage regulator (VR) ICs. The R1500xxxxB has features of high
input voltage operating, 500mA 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
SET
=10V)
device is realized. A standard regulator circuit with a current limit circuit and a thermal shutdown circuit are built
in the R1500x series.
As the operating temperature range is from
−40°C
to 105°C and maximum input voltage is up to 24V, the
R1500x series are suitable for the constant voltage source for car accessories.
The regulator output voltage is fixed in the R1500x. Output voltage accuracy is ±2.0% and output voltage range
is from 3.0V to 12.0V with a step of 0.1V. The chip enable pin realizes ultra low supply current standby mode.
The package for these ICs is the SOT-89-5 for high density mounting of the ICs on boards.
T
∗)
The DMOS (Double Diffused MOS) transistor adopted by R1500x 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 R1500x 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
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Input Voltage Range (Maximum Rating) ......................4.0V to 24.0V (36V)
Operating Temperature range ......................................−40°C to 105°C
Supply Current .............................................................Typ. 70μA
Standby Current ...........................................................Typ. 0.1μA
Ripple Rejection .........................................................Typ. 60dB (V
SET
=
5.0V)
Temperature-Drift Coefficient of Output Voltage ..........Typ.
±100ppm/°C
Output Current..............................................................Min. 500mA (V
IN
=V
SET
+1V)
Line Regulation ............................................................Typ. 0.05%/V
Output Voltage Accuracy..............................................±2%
Output Voltage..............................................................3.0V to 12.0V (0.1V steps)
Package .......................................................................SOT-89-5
Built-in Current Limit Circuit .........................................TYP. 65mA
Built-in Fold-Back Circuit
Built-in Thermal Shutdown Circuit
T
T
APPLICATIONS
•
Power source for accessories such as car audios, car navigation systems, and ETC systems
•
Power source for ECUs such as EV inverter and battery charge control unit
1
R1500H
NO.EC-151-131119
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
P
D
T
j
T
stg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Power Dissipation (SOT-89-5)
∗
Junction Temperature
Storage Temperature Range
Standard Land Pattern
High Wattage Land Pattern
Item
Rating
36
−0.3
to V
IN
≤
36
−0.3
to V
IN
≤
36
1120
1620
−40
to 150
−55
to 150
Unit
V
V
V
mW
°C
°C
∗
) Refer to
PACKAGE INFORMATION
for detailed information.
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 RATINGS
Symbol
V
IN
T
a
Input Voltage
Operating Temperature Range
Item
Rating
4.0 to 24.0
−40
to 105
Unit
V
°C
RECOMMENDED OPERATING RATINGS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating ratings. The semiconductor devices cannot operate normally over the recommended
operating ratings, even if when they are used over such ratings by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended
operating ratings.
4
R1500H
NO.EC-151-131119
ELECTRICAL CHARACTERISTICS
V
IN
=V
SET
+1.0V,C
IN
=0.47µF ,C
OUT
=10µF, unless otherwise noted.
The specifications surrounded by
are guaranteed by design engineering at –40°C
≤
Ta
≤
105°C.
R1500xxxxB
Symbol
V
OUT
I
LIM
I
SS
Istandby
∆
V
OUT
/∆I
OUT
∆V
OUT
/∆V
IN
V
DIF
I
SC
V
CEH
V
CEL
T
TSD
T
TSR
(Ta=25°C)
Item
Output Voltage
Output Current Limit
Supply Current
Standby Current
Load Regulation
Line Regulation
Dropout Voltage
Short Current Limit
CE Input Voltage "H"
CE Input Voltage "L"
Thermal Shutdown
Temperature
Thermal Shutdown
Released Temperature
Conditions
Ta=25°C
I
OUT
=100mA
−40°C≤Ta≤105°C
V
IN
=V
CE
V
IN
=24V
V
IN
= V
SET
+2.0V
0.1mA≤I
OUT
≤200mA
V
SET
+1V≤V
IN
≤24V
I
OUT
=10mA
I
OUT
＝200mA
V
OUT
= 0V
Min.
x 0.98
x 0.965
500
Typ.
Max.
x 1.02
x 1.035
140
1.0
60
0.1
Unit
V
mA
µA
µA
mV
%/V
70
0.1
25
0.05
Refer to the
Product-specific
Electrical Characteristics
65
mA
2.0
V
IN
V
0.4
0
V
150
170
145
°C
°C
Junction Temperature
Junction Temperature
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj
≈
Ta = 25°
C
).
5
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