RP110x SERIES
150mA Low Supply Current LDO REGULATOR
NO.EA-239-170425
OUTLINE
The RP110x Series is a voltage regulator (LDO) IC, which has been developed using the CMOS process
technology, with high output voltage accuracy, ultra-low supply current, and low ON-resistance transistor. The IC
contains the following components: a voltage reference unit, an error amplifier, a resistor-net for output voltage
setting, a current limit circuit for preventing short-circuit, a soft-start circuit, and a chip enable circuit.
By minimizing the supply current to 1µA, the IC is able to prolong the battery life of each system. The external
capacitor is 0.1µF with phase compensation. The IC also has a constant slope circuit as a soft-start circuit, which
does not require any external capacitor. It minimizes the inrush current and prevents the output voltage overshoot
at the start-up.
In addition to the small packaged SOT-23-5 and SC-88A, the RP110x Series offers the ultra-small
DFN(PLP)0808-4 package and DFN1010-4, which enables the high density mounting of LDO regulator.
FEATURES
•
Supply Current ...................................................... Typ. 1.0µA
(Except the current through CE pull down circuit)
•
Standby Current .................................................... Typ. 0.1µA
•
Dropout Voltage .................................................... Typ. 0.28V (I
OUT
=150mA,
V
OUT
=2.8V)
•
Output Voltage Accuracy.......................................
±1.0%
•
Temperature-Drift Coefficient of Output Voltage ... Typ.
±100ppm/°C
•
Line Regulation ..................................................... Typ. 0.02%/V
•
Packages .............................................................. DFN(PLP)0808-4, DFN1010-4,
SC-88A, SOT-23-5
•
Input Voltage Range ............................................. 1.4V to 5.25V
•
Output Voltage Range........................................... 0.8V to 3.6V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
•
Built-in Fold Back Protection Circuit ..................... Typ. 50mA (Current at short mode)
•
Ceramic capacitors are recommended to be used with this IC ..... 0.1µF or more
•
Built-in Constant Slope Circuit
APPLICATIONS
•
Power source for portable communication equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
1
RP110x
NO.EA-239-170425
BLOCK DIAGRAMS
RP110xxxxB
V
DD
V
OUT
V
DD
RP110xxxxC
V
OUT
Vref
Vref
Current Limit
Current Limit
CE
GND
NC
GND
RP110xxxxD
V
DD
V
OUT
Vref
Current Limit
CE
GND
2
RP110x
NO.EA-239-170425
SELECTION GUIDE
The output voltage, chip enable circuit, auto discharge function, package for the ICs can be selected at the
user’s request.
Product Name
RP110Kxx1∗-TR
RP110Lxx1∗-TR
RP110Qxx2∗-TR-FE
RP110Nxx1∗-TR-FE
Package
DFN(PLP)0808-4
DFN1010-4
SC-88A
SOT-23-5
Quantity per Reel
10,000 pcs
10,000 pcs
3,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
Yes
xx: Output voltage (V
OUT
) is selectable from 0.8V to 3.6V in 0.1V increments.
The second decimal point is described as below.
1.25V: RP110x12x
∗
5
1.85V: RP110x18x
∗
5
2.85V: RP110x28x
∗
5
∗:
Selections of CE pin and Auto-discharge function are as shown below.
B: CE “H” active, Auto-discharge function: No
C: CE is unavailable, Auto-discharge function: No
D: CE “H” active, Auto-discharge function: Yes
3
RP110x
NO.EA-239-170425
PIN CONFIGURATIONS
•
DFN(PLP)0808-4
Top View
4
3
•
DFN1010-4
Top View
4
3
Bottom View
3
∗
4
Bottom View
3
∗
4
1
2
2
1
1
2
2
1
•
SC-88A
5
4
•
SOT-23-5
5
4
(mark side)
(mark side)
1
2
3
1
2
3
PIN DESCRIPTIONS
•
DFN(PLP)0808-4
Pin No
1
2
3
4
Symbol
V
OUT
GND
CE / NC
V
DD
Output Pin
Ground Pin
Chip Enable Pin ("H" Active) / No connection
Input Pin
Pin Description
∗)
Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
•
DFN1010-4
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE / NC
V
DD
Output Pin
Ground Pin
Chip Enable Pin ("H" Active) / No connection
Input Pin
Description
∗)
Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
4
RP110x
NO.EA-239-170425
•
SC-88A
Pin No.
1
2
∗
3
4
5
Symbol
CE / NC
NC
GND
V
OUT
V
DD
Description
Chip Enable Pin ("H" Active) / No connection
No connection
Ground Pin
Output Pin
Input Pin
∗
) Pin No. 2 is connected to the bottom of the IC. It is recommended that the pin be connected to the ground plane on the
board, or otherwise be left floating so that there is no contact with other potentials.
•
SOT-23-5
Pin No
1
2
3
4
5
Symbol
V
DD
GND
CE / NC
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin ("H" Active) / No connection
No Connection
Output Pin
Pin Description
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (DFN(PLP)0808-4)
∗
P
D
Power Dissipation (DFN1010-4)
∗
Power Dissipation (SC-88A)
∗
Item
Rating
6.0
6.0
−0.3
to V
IN
+0.3
180
286
400
380
420
−40
to 85
−55
to 125
Unit
V
V
V
mA
mW
Power Dissipation (SOT-23-5)
∗
T
opt
T
stg
Operating Temperature Range
Storage Temperature Range
°C
°C
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION.
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 is not assured.
5
