RP115x-Y Series
Low On Resistance/ Low Voltage 1 Ch 500 mA/ 1.0 A Alternative LDO
for Industrial Applications
No.EA-413-190404
OUTLINE
The RP115x is a positive voltage regulators featuring 500 mA/ 1.0 A that provide high ripple rejection, low
dropout voltage, high output voltage accuracy, and low supply current. Internally, the RP115x consists of a
voltage reference unit, an error amplifier, a resistor-net for output voltage setting, a current limit circuit, a
thermal shutdown circuit, and a reverse current protection circuit. The RP115x uses CMOS process for
achieving low supply current, low On Resistance for low dropout voltage (Typ. 0.195 V (DFN1216-8, I
OUT
= 1.0
A, V
SET
= 1.2 V)) and CE function for long battery life.
The RP115x is available in the DFN1216-8 package for space saving and the SOT-89-5 (Output current: 1.0
A fixed) package for higher power applications. The RP115L (DFN1216-8 package) can choose the output
current limit between 1.0 A or 500 mA by alternating the LCON pin between “High” or “Low”. The RP115H
(SOT-89-5 package) can output only 1.0 A since it does not include the LCON pin. This is a high-reliability
semiconductor device for industrial application (-Y) that has passed both the screening at high temperature
and the reliability test with extended hours.
FEATURES
Input Voltage Range (Maximum Rating) ꞏꞏꞏꞏꞏꞏ 1.4 V to 5.25 V (6.0 V)
Operating Temperature ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ −40°C to 105°C
Supply Currentꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 110 μA
Standby Current ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 0.5 μA
Dropout Voltage ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 0.195 V (RP115L: I
OUT
= 1.0 A, V
SET
= 1.2 V)
Typ. 0.235 V (RP115H: I
OUT
= 1.0 A, V
SET
= 1.2 V)
Ripple Rejection ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 80 dB (f = 1 kHz, V
SET
≤ 1.8 V)
Typ. 75 dB (f = 1 kHz, V
SET
> 1.8 V)
Output Voltage Accuracy ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ
1.0%
(V
SET
≥ 1.75 V)
Output Voltage Temperature Coefficient ꞏꞏꞏꞏꞏꞏ Typ.
30
ppm/°C (V
SET
≥ 1.75 V)
Typ. ±100 ppm/°C (V
SET
< 1.75 V)
Line Regulation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 0.02%/V
Settable Output Voltage ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 0.9 V/ 1.0 V/ 1.2 V/ 1.5 V/ 1.75V/ 1.8 V/ 2.5 V/ 2.8 V/ 3.0 V/ 3.3 V/ 3.4 V
Built-in Short Current Limit Circuit ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Typ. 60 mA (RP115L: LCON = "Low")
Built-in Peak Current Limit
Built-in Thermal Shutdown Circuit ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ Thermal Shutdown Temperature: 165°C
Built-in Constant Slope Circuit for Start-up
Built-in Inrush Current Suppression Circuit ꞏꞏꞏ Typ. 300 mA (RP115L: LCON = "Low")
Reverse Current Protection
Recommended Ceramic Capacitors ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1.0 µF or more
Output Noise ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 17 x V
SET
µVrms (BW = 10 Hz to 100 kHz, V
SET
< 1.75 V)
Package ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ DFN1216-8, SOT-89-5
1
RP115x-Y
No.EA-413-190404
APPLICATIONS
FA Equipment, Smart meters
Surveillance Cameras and Vending Machines that are used under high-temperature conditions
Motors and Lightings that are accompanied by self-heating
SELECTION GUIDE
The package type, the set output voltage and the auto-discharge
(1)
are user-selectable options.
Selection Guide
Product Name
RP115Lxx1(y)-TR-Y
RP115Hxx1(y)-T1-YE
Package
DFN1216-8
SOT-89-5
Quantity per Reel
5,000 pcs
1,000 pcs
Pb Free
Yes
Yes
Halogen Free
Yes
Yes
xx: Specify the set output voltage (V
SET
)
0.9 V (09) / 1.0 V (10) / 1.2 V (12) / 1.5 V (15) / 1.75 V (17) / 1.8 V (18) / 2.5 V (25) / 2.8 V (28) /
3.0 V (30) / 3.3 V (33) / 3.4 V (34)
Note: Contact Ricoh sales representatives for other voltages.
(y): Indicate the digit of 0.01 when the output voltage is 1.75 V.
Ex. RP115L171B5-TR-A
:
Specify the auto-discharge option
(B) auto-discharge not included
(D) auto-discharge included
Auto-discharge function quickly lowers the output voltage to 0 V by releasing the electrical charge in the external
capacitor when the chip enable signal is switched from the active mode to the standby mode.
(1)
2
RP115x-Y
No.EA-413-190404
BLOCK DIAGRAMS
VDD
VOUT VDD
VOUT
-
Vref
+
Current Limit
Thermal Shutdown
Reverce
Ditector
VFB
Vref
-
+
Current Limit
Thermal Shutdown
Reverce
Ditector
VFB
CE
GND
CE
GND
LCON
LCON
RP115Lxx1B Block Diagram
RP115Lxx1D Block Diagram
VDD
VOUT
VDD
VOUT
-
Vref
+
Current Limit
Thermal Shutdown
Reverce
Detector
VFB
Vref
-
+
Current Limit
Thermal Shutdown
Reverce
Detector
VFB
CE
GND
CE
GND
RP115Hxx1B
(1)
Block Diagram
RP115Hxx1D
(1)
Block Diagram
(1)
The RP115H does not have the LCON pin, so the output current is fixed at 1 A.
3
RP115x-Y
No.EA-413-190404
PIN DESCRIPTION
Top View
8
7
6
5
Bottom View
5
6
7
8
5
4
1
2
3
4
4
3
2
1
1
2
3
DFN1216-8 Pin Configuration
SOT-89-5 Pin Configuration
RP115L: DFN1216-8
Pin No
1
2
3
4
5
6
7
8
Symbol
VOUT
(1)
VOUT
(1)
LCON
VFB
(1)
GND
CE
VDD
(2)
VDD
(2)
Output Pin
Output Pin
Output Current Limit Alternate Pin (“H” = 1 A, “L” = 500 mA)
Feedback Pin
Ground Pin
Chip Enable Pin
Input Pin
Input Pin
Pin Description
The tab on the bottom of the package shown by blue circle is a substrate potential (GND). It is recommended that this
tab be connected to the ground plane pin on the board but it is possible to leave the tab floating.
RP115H
(3)
: SOT-89-5
Pin No
1
2
3
4
5
Symbol
VFB
(1)
GND
CE
VDD
VOUT
(1)
Feedback Pin
Ground Pin
Chip Enable Pin
Input Pin
Output Pin
Pin Description
(1)
(2)
The VOUT and the VFB pins must be wired together when mounting on the board.
The VDD pin must be wired together when mounting on the board.
(3)
Output Current Limit is fixed at 1 A.
4
RP115x-Y
No.EA-413-190404
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
V
IN
V
CE
V
LCON
V
OUT
P
D
Tj
Tstg
Input Voltage
CE Pin Input Voltage
LCON Pin Input Voltage
Output Voltage
Power Dissipation
(1)
JEDEC
STD. 51
JEDEC
STD. 51
Item
Rating
6.0
−0.3 to 6.0
−0.3 to 6.0
−0.3 to 6.0
DFN1216-8
SOT-89-5
−40 to 150
−55 to 150
2200
3200
Unit
V
V
V
V
mW
°C
°C
Junction Temperature Range
Storage Temperature Range
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 are not assured.
RECOMMENDED OPERATING CONDITIONS
Recommend Operating Conditions
Symbol
Item
V
IN
Ta
Input Voltage
(2)
Operating Temperature Range
Rating
1.4 to 5.25
−40 to 105
Unit
V
°C
RECOMMENDED OPERATING CONDITONS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, 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
conditions.
(1)
(2)
Refer to
POWER DISSIPATION
for detailed information.
The maximum input voltage listed under
Electrical Characteristics
is 5.25 V. If for any reason the input voltage exceeds
5.25 V, it has to be no more than 5.5 V with 500 cumulative operating hours.
5
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