R1516x Series
150mA 36V Input VR
No.EK-258-121001 CMOS Voltage Regulator
The R1516x Series are CMOS-based voltage regulators featuring 150mA output current and 36V input voltage. In addition to a
fold-back prote ction circuit built into conventi onal regulators, R1516x contains a thermal sh utdown circuit. Besides t he low supply
current by CMOS, the operating temperature is -40°C to 105°C and the maximum input voltage is 36V, the R1516x series are very
suitable for use in digital home appliances and automotive applications∗. Compared to the same 150mA output R1514x Series,
R1516x offers an excellent load transient response.
∗) These products are suitable for automotive applications too. Please refer to our "Car Electronics Products Catalog" or contact us.
FEATURES
• Supply Current (ISS) ························Typ. 29μA (VIN=VSET+3.0V)
• Standby Current (Istandby) ·················Typ. 0.1μA (VIN=36V, CE=”L”)
• Dropout Voltage (VDIF) ···················· Max. 0.6V (IOUT=20mA, VSET=5.0V)
• Input Voltage Range (VIN)···············4.0V to 36.0V (Absolute maximum rating: 50.0V)
• Output Voltage Range (VOUT)·········· 1.8V to 6.2V (Internally fixed)
• Output Voltage Accuracy ·················± 1% (VSET=5.0V)
• Temp. coeff. of Output Voltage ···········Typ. ± 100ppm/°C
• Line Regulation ·································· Typ. 0.1%/V
• Fold-back Protection Circuit··············Current limit Typ. 50mA
• Thermal Shutdown Circuit ················Stops at 150°C
• Packages ········································SOT-89-5, HSOP-6J
• Ceramic capacitors can be used. ···0.1μF to 20μF or more
BLOCK DIAGRAM
R1516xxxxB
VDD VOUT
CE GND
Current Limit
Short
Protection
Vref
Thermal Shutdown
Circuit
Internal
VR
SELECTION GUIDES
Halogen Free
Package
Q'ty per Reel
Part No.
SOT-89-5 1,000 pcs R1516H
.
xxx
B-T1-FE
HSOP-6J 1,000 pcs R1516S
.
xxx
B-E2-FE
.
xxx
: Specify the output voltage within the range of
1.8V (
.
018
.
) to 6.2V (
.
062
.
) in 0.1V steps.
PACKAGES (Top View) TYPICAL CHARACTERISTIC
SOT-89-5 HSOP-6J
1 3
5 4
2
1 3
6 4
2
5
1 VOUT
2 GND∗
3 CE
4 GND∗
5 VDD
1 VOUT
2 GND∗
3 CE
4 GND∗
5 GND∗
6 VDD
R1516x050B Output Voltage vs. Output Current
0 250150 20010050 300
0
6
3
5
4
2
1
VIN=7V
VIN=8V
VIN=9V
VIN=10V
Output Current IOUT (mA)
Output Voltage VOUT (V)
∗) The GND pin must be wired together when it is mounted on board.
R1516x is pin compatible with R1514x.
APPLICATIONS
• Power source for home appliances such as refrigerators, rice cookers, electric water warmers.
• Power source for car audio equipment, car navigation system, ETC system, etc.
• Power source for laptop personal computers, digital TVs, cordless phones, and private LAN systems for home.
• Power source for office equipment machines such as copiers, printers, facsimiles, scanners, projectors.
R1516x Series CMOS Voltage Regulator
150mA 36V Input VR
The currently available information as of October 2012 is provided in this New Product News. EK-258-121001
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 R1516x Series have achieved the absolute maximum
rating as high as 50V (Peak input voltage: 60V < 200ms).
LOW SUPPLY CURRENT
DURING OPERATION: 29μA
The supply current of CMOS type is much lower than
bipolar type’s. This value shows R1516x’s supply current
is low, although the input voltage is high as 36V. A energy
saving system can be built, because the supply current is
low in the operating mode as well as in standby mode.
MAXIMUM OPERATING AMBIENT
TEMPERATURE 105
°
C
Unlike Ricoh’s conventional regulators, the operating
ambient temperature range of the R1516x Series is rated
from -40°C to 105°C that makes it suitable for use in
digital home appliances involving higher operating
temperatures.
10
RP171x
RP171xRP171x
RP170x
RP170xRP170x
R1191x
R1191xR1191x
RP132x
RP132xRP132x
RP173x
RP173xRP173x
Output current (mA)
Maximum input voltage (V)
CMOS type high input voltage area
CMOS type high input voltage areaCMOS type high input voltage area
CMOS type large current range
CMOS type large current rangeCMOS type large current range
CMOS area
CMOS area CMOS area
R1171S
R1171SR1171S
Comparison of R1516x with R1514x
Compared to the same 150mA output of R1514x, R1516x has improved a load transient response as shown below.
The R1516x series has narrow range of output voltage compared with the R1514x series (R1516x :1.8V to 6.2V, R1514x : 2.0V to 12.0V)
R1516x050B
0
20
40
-2 0 2 4 6 8
Time t (ms)
Output Current Iout (mA)
3
5
7
9
11
13
Output Voltage Vout (V)
Output Current
1mA⇔20mA
tr=tf=50μs
Output Voltage
Absolute Maximum Rating 50V
(Peak Input Voltage 60V)
4520316
Time t (ms)
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
30
20
10
0
3
7
5
V
IN
=8.0V
tr=tf=50µs
Output Voltage
Output Current
1mA 20mA
R1514x050B
VIN=8.0V
, R1516x
