R1514x Series
150mA 36V Input VR
The R1514x Series are CMOS-based voltage regulators featuring 150mA output current and 36V input voltage. In addition to a
fold-back protection circuit built into conventional regulators, R1514x 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 R1514x series are very
suitable for power source of car accessories.
FEATURES
•
Supply Current (I
SS
) ························Typ. 9μA (V
IN
=SET V
OUT
+3V)
•
Standby Current (I
standby
) ·················Typ. 0.1μA (V
IN
=36V, CE="L")
•
Dropout Voltage (V
DIF
) ····················Typ. 0.2V (I
OUT
=20mA, V
OUT
=5.0V)
•
Input Voltage Range (V
IN
) ···············4V to 36V (Absolute maximum rating: 50V)
•
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.
•
Package ··········································SOT-89-5, HSOP-6J
•
Ceramic capacitors can be used. ···0.1μF to 10μF or more
BLOCK DIAGRAM
R1514xxxxB
Thermal Shutdown
Circuit
V
DD
Internal
VR
V
OUT
Vref
Short
Current Limit
Protection
CE
GND
SELECTION GUIDES
Package
SOT-89-5
HSOP-6J
Quantity per Reel
Part No.
1,000 pcs
R1514H.xxx B-T1-F
1,000 pcs
R1514S.xxx B-E2-F
.xxx
: Specify the output voltage within the range 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
R1514x090B
10
Output Voltage V
OUT
(V)
Output Voltage vs. Output Current
8
6
4
2
0
V
IN=
11.0V
V
IN=
11.5V
V
IN=
12.0V
V
IN=
12.5V
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
0
50
100 150 200 250
Output Current I
OUT
(mA)
300
∗
) The GND pin must be wired together when it is mounted on board
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
No.EK-152-091101
CMOS Voltage Regulator
R1514x Series
CMOS Voltage Regulator
Voltage Regulator with 150mA Output Current and 36V Input Voltage
●Voltage
Regulator with 150mA Output and 36V Input Voltage
MAXIMUM INPUT VOLTAGE 36V
The CMOS type regulator has been introduced into the
high input voltage area where only bipolar type could
previously operate.
The R1514x Series have achieved the absolute
maximum rating as high as 50V (peak input voltage: 60V
< 200ms).
CMOS High
Input Voltage Area
36
R1514x
Maximum Input Voltage (V)
LOW SUPPLY CURRENT
DURING OPERATION: 9μA
This value represents the world’s lowest supply current of
regulators with an input voltage of 36V.
A battery saving system can be built, because the supply
current is low in the operating mode as well as in standby
mode.
R1515x
Absolute
Maximum Rating 50V
(Peak Input Voltage 60V)
18
R1152N
With External
Output
Transistor
MAXIMUM OPERATING AMBIENT
TEMPERATURE 105°C
Unlike Ricoh’s conventional regulators, the operating
ambient temperature range of the R1514x Series is rated
from -40°C to 105°C that makes it suitable for use in
automotive and industrial applications involving higher
operating temperatures.
R1111N
CMOS Area
8
R1114x
6
5
0
R1170x
R1172x
R1171J
RP100x
RP102x
600
CMOS High
Current Area
0 50 150 200 300 400
800
1000 1200
1400
Output Current (mA)
1600
1800
2000
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 of 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
R1514x
R1154x
R1515x
R1170x
RP131x
R1171x
RP170x
R1172x
RP171x
R1173x
R1190x
R1191x
R1500x
R1501x
The currently available information as of December 2009 is provided in this New Product News.
EK-152-091101
Embedded System
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EEWORLD
