R1515x Series
50mA 36V Input VR
The R1515x Series are CMOS-based voltage regulators featuring 50mA output current and 36V input voltage. In addition to a
fold-back protection circuit built into conventional regulators, R1515x contains a thermal shutdown circuit. Besides the low supply
current by CMOS, the operating temperature is -40°C to 105°C and the maximum input voltage is 36V, the R1515x series are very
suitable for power source of car accessories.
FEATURES
•
Supply Current (I
SS
)·························Typ. 9μA (V
IN
=SET V
OUT
+3.0V)
•
Standby Current (I
standby
) ···················Typ. 0.1μA (V
IN
=36.0V, CE="L")
•
Dropout Voltage (V
DIF
)·····················Typ. 0.2V (I
OUT
=20mA, V
OUT
=5.0V)
•
Input Voltage Range (V
IN
) ··············4.0V to 36.0V (Absolute maximum rating: 50.0V)
•
Output Voltage Range (V
OUT
)··········2.0V to 12.0V (internally fixed)
•
Output Voltage Accuracy·················± 2%
•
Temp. coeff. of Output Voltage ·······Typ.
±
100ppm/°C
•
Line Regulation·······························Typ. 0.05%/V
•
Fold-back Protection Circuit ···········Current limit Typ. 50mA
•
Thermal Shutdown Circuit ··············Stops at Typ. 150°C.
•
Packages ······································ SOT-89-5, HSOP-6J
•
Ceramic capacitors can be used. ···0.1μF to 10μF
BLOCK DIAGRAM
R1515xxxxB
Thermal Shutdown
Circuit
V
DD
Internal
VR
V
OUT
Vref
Short
Current Limit
Protection
CE
GND
SELECTION GUIDES
Halogen Free
Package
SOT-89-5
HSOP-6J
Q'ty per Reel
Part No.
1,000 pcs R1515H.xxx B-T1-FE
1,000 pcs R1515S.xxx B-E2-FE
.xxx
: Specify the output voltage within the range of
2.0V (.020.) to 12.0V (.120.) in 0.1V steps
PACKAGES (Top View)
SOT-89-5
5
4
TYPICAL CHARACTERISTIC
HSOP-6J
6
5
4
R1515x090B
Output Voltage vs. Output Current
10
Output Voltage V
OUT
(V)
8
6
4
2
0
1
2
3
1
2
3
1
2
3
4
5
V
OUT
GND
∗
CE
GND
∗
V
DD
1
2
3
4
5
6
V
OUT
GND
∗
CE
GND
∗
GND
∗
V
DD
V
IN=
10.5V
V
IN=
11.0V
V
IN=
11.5V
V
IN=
12.0V
0
∗
) The GND pin must be wired together when it is mounted on board.
50
100
150
Output Current I
OUT
(mA)
200
APPLICATIONS
•
Power source for home appliances such as refrigerators, rice cookers, electric water warmers, etc
•
Power source for car audio equipment, car navigation systems, ETC systems, etc
•
Power source for laptop personal computers, digital TVs, cordless phones, and private LAN systems for home, etc
•
Power source for office equipment machines such as copiers, printers, facsimiles, scanners, projectors, etc
•
Power source for the backup circuit for keyless entry systems, etc
No.EK-153-101001
CMOS Voltage Regulator
R1515x Series
50mA 36V Input VR
CMOS Voltage Regulator
MAXIMUM INPUT VOLTAGE 36V
The CMOS type regulator has been introduced into the
high input voltage area where only bipolar type could
serve previously operate.
The R1515x Series have achieved the absolute maximum
rating as high as 50V (peak input voltage: 60V<200ms).
CMOS type high input voltage area
LOW SUPPLY CURRING DURING
OPERATIOPERATION: 9μA
Supply current is only one-tenth to one-fortieth of that of
the bipolar type.
This value represents the world’s lowest supply current of
regulators with an input voltage of 36V.
A battery friendly system can be built, because supply
current is low in both operating mode as well as in
standby mode.
Maximum input voltage (V)
Absolute Maximum Rating 50V
(Peak Input Voltage 60V)
RP171x R1191x
RP170x
RP173x
10
CMOS area
RP132x
R1171S
CMOS type large current range
MAXIMUM OPERATING AMBIENT
TEMPERATURE 105°C
Unlike Ricoh’s conventional regulators, the operating
ambient temperature range of the R1515x Series is rated
from -40°C to 105°C that make it suitable for use in
automotive and industrial applications involving higher
temperature.
Output current (mA)
Thermal Shutdown Circuit
The thermal shutdown circuit shown in the block diagram detects an increase in temperature, stops operation, and protects the regulator from being
damaged by a short circuit in the output pin (V
OUT
) and ground pin (GND).
The Thermal Shutdown Circuit stops operation of the regulator when the junction temperature of the regulator exceeds 150°C. Moreover, when the
junction temperature decreases to a level below 125°C after the regulator has stopped, the regulator resumes to normal operation.
As a result, the operation of the Thermal Shutdown Circuit causes the regulator repeatedly to turn OFF and ON till the causes of overheating are
removed. As a consequence, a pulse shaped output voltage occurs. Care should be taken to prevent this situation.
In the datasheet it is shown as a thermal shutdown detection temperature (T
TSD
) and a thermal shutdown release temperature (T
TSR
).
Products with a built-in Thermal Shutdown Circuit
R1150H
R1510S
R1154x
R1514x
R1170x
R1515x
R1171x
RP111x
R1172x
RP131x
R1173x
RP170x
R1190x
RP171x
R1191x
R1500x
R1501x
The currently available information as of October 2010 is provided in this New Product News.
EK-153-101001
