R1190x Series
1A 16V Input VR
The R1190x Series are CMOS-based 16V input voltage regulators featuring 1A output. These are suitable for digital home appliances,
in which only bipolar types could previously operate. So R1190x contributes to save energy. R1190x has an inrush current limit
circuit that limits approximately 400mA when the voltage regulator turns on. It is also possible to set the inrush current limit time by
connecting a capacitor with DELAY pin. In addition to TO-252-5-P2 and HSOP-6J packages, a SOT-89-5 package with high-density
mounting is available.
FEATURES
•
Supply Current (I
SS
) ····················· Typ. 150μA (V
IN
=SET V
OUT
+2V)
•
Standby Current (I
standby
)············· Typ. 0.1μA (V
IN
=16V, CE="L")
•
Dropout Voltage (V
DIF
) ················· Typ. 1.1V (I
OUT
=1A, V
OUT
=5.0V)
•
Ripple Rejection (RR)·················· Typ. 60dB (f=1kHz)
•
Input Voltage Range (V
IN
) ············ 3.5V to 16.0V
•
Output Voltage Range (V
OUT
)······· 2.0V to 12.0V (internally fixed)
•
Output Voltage Accuracy ·············
±
1.5%
•
Temp. coeff. of Output Voltage ···· Typ.
±
100ppm/°C
•
Line Regulation ······························ Typ. 0.02%/V
•
Fold-back Protection Circuit··········· Current limit Typ. 300mA
•
Inrush Current Limit Circuit ············ Typ. 400mA
(The inrush current limit time can be adjustable with external capacitors.)
•
Thermal Shutdown Circuit·············· Stops at 150°C
•
Auto-Discharge function················· D Version
•
Packages ······································· SOT-89-5, HSOP-6J, TO-252-5-P2
•
Ceramic capacitors can be used.··· C
IN
=C
OUT
=4.7μF or more
BLOCK DIAGRAMS
R1190xxxxB
(Without Auto-Discharge function)
Thermal Shutdown
R1190xxxxD
(With Auto-Discharge function)
Thermal Shutdown
V
DD
V
OUT
V
DD
V
OUT
Vref
Vref
Short
Protection
Inrush
Current
Limit
Peak
Current
Protection
Short
Protection
Inrush
Current
Limit
Peak
Current
Protection
CE
DELAY
GND
CE
DELAY
GND
SELECTION GUIDES
Package
SOT-89-5
HSOP-6J
TO-252-5-P2
Quantity per Reel
Part No.
1,000 pcs
R1190H.xxx∗ -T1-F
1,000 pcs
R1190S.xxx∗ -E2-F
3,000 pcs
R1190J.xxx∗ -T1-F
.xxx.
: Specify the output voltage within 2.0V (.020.) to 12.0V (.120.)
in 0.1V steps.
.∗
: Select from (.B.) without auto-discharge function or
(.D.) with auto-discharge function
PACKAGES (Top View)
SOT-89-5
5
4
TYPICAL CHARACTERISTIC
TO-252-5-P2
R1190x050x
2500
Dropout Voltage V
DIF
(mV)
HSOP-6J
6
5
4
Dropout Voltage vs. Output Current
85°C
25°C
-40°C
2000
1500
1000
500
0
0
1
2
3
1
2
3
1
2
3
4
5
1
2
3
4
5
V
OUT
GND
CE
DELAY
V
DD
1
2
3
4
5
6
V
OUT
GND
CE
DELAY
GND
V
DD
1
2
3
4
5
DELAY
V
DD
GND
V
OUT
CE
200
400
600
800
Output Current I
OUT
(mA)
1000
APPLICATIONS
•
Power source for digital home appliances
•
Power source for audio visual equipment
No.EK-183-091101
CMOS Voltage Regulator
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discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
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example application circuits for the products. The release of such information is not to be
construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual
property rights or any other rights.
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components in standard applications (office equipment, telecommunication equipment,
measuring instruments, consumer electronic products, amusement equipment etc.). Those
customers intending to use a product in an application requiring extreme quality and reliability,
for example, in a highly specific application where the failure or misoperation of the product
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concerning the products or the technical information.
RICOH COMPANY., LTD.
Electronic Devices Company
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