RP173x Series
11 V Input 150 mA LDO
No. EA-256-171101
OUTLINE
The RP173x is a voltage regulator featuring 150 mA output and low supply current of Typ. 2.0
µA.
It consists
of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit, a chip
enable circuit and a Reverse Current Protection Circuit. RP173x is suitable for the power source such as the
equipment being in the standby-mode. The A version with CE input pin has reduced CE pull-up resistance to
make its supply current ultra low.
The RP173x has Max.11 V Input voltage and is applicable to the portable communication equipment that
requires the 2-cell Li-ion battery. Also it is applicable to the non-portable communication equipments. As the
RP173x includes Reverse Current Protection Circuit, there is little leakage current, if it is used as back-up
circuit.
Packages are available in SOT-23-5, SC-88A, and 1-mm square DFN(PLP)1010-4 packages. High density
mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Output Current ............................................................. Typ. 150 mA
Supply Current ............................................................. Typ. 2.0
µA
Standby Current ........................................................... Typ. 0.2
µA
Dropout Voltage ........................................................... Typ. 0.13 V (I
OUT
= 30 mA, V
OUT
= 3.0 V)
Typ. 0.90 V (I
OUT
= 150 mA, V
OUT
= 3.0 V)
Output Voltage Accuracy.............................................. ±1.0% (1.5 V < V
OUT
≤
5.5 V, Ta = 25°C)
Line Regulation ............................................................ Typ. 0.02%/V
Packages ..................................................................... DFN(PLP)1010-4, SC-88A, SOT-23-5
Input Voltage Range .................................................... 2.5 V to Set V
OUT
+ 6.5 V (Max. 11 V)
Output Voltage Range .................................................. 1.2 V to 5.5 V (0.1 V step)
Built-in Reverse Current Protection Circuit
Short Current Limit ....................................................... Typ. 45 mA
Built-in Peak Current Limit Circuit
Output capacitors ......................................................... 0.1
µF
or more
APPLICATIONS
•
•
•
•
Power source for portable communication equipments.
Power source for battery-powered equipments.
Power source for electrical appliances such as cameras, VSRs and camcorders.
Power source for digital home appliances.
1
RP173x
No. EA-256-171101
SELECTION GUIDE
The output voltage, the auto-discharge function
(1)
, and the package for the ICs are user-selectable options.
Selection Guide
Product Name
RP173Kxx1∗-TR
RP173Qxx2∗-TR-FE
RP173Nxx1∗-TR-FE
Package
DFN(PLP)1010-4
SC-88A
SOT-23-5
Quantity per Reel
10,000 pcs
3,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
xx : The output voltage can be designated in the range of 1.2 V (12) to 5.5 V (55) in 0.1 V step.
∗
: The auto discharge function at off state are options as follows.
(A) "L" active, without auto discharge function at off state (Pull-up resistance is not built-in)
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the
active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
(1)
2
RP173x
No. EA-256-171101
BLOCK DIAGRAMS
RP173xxxxA
V
DD
V
OUT
V
DD
RP173xxxxB
V
OUT
Vref
Current Limit
Reverse
Detector
Vref
Current Limit
Reverse
Detector
CE
GND CE
GND
(Pull-up resistance is not built-in.)
RP173xxxxD
V
DD
V
OUT
Vref
Current Limit
Reverse
Detector
CE
GND
3
RP173x
No. EA-256-171101
PIN DESCRIPTIONS
Top View
4
3
Bottom View
3
(1)
4
5
4
5
4
(mark side)
(mark side)
1
2
2
1
1
1
2
3
1
2
3
DFN(PLP)1010-4 Pin Configuration
DFN(PLP)1010-4 Pin Descriptions
Pin No.
Symbol
1
2
3
4
V
OUT
GND
CE /CE
V
DD
SC-88A Pin Configuration
SOT-23-5 Pin Configuration
Description
Output Pin
Ground Pin
Chip Enable Pin
Input Pin
SC-88A Pin Descriptions
Pin No.
Symbol
1
2
(2)
3
4
5
CE /CE
NC
GND
V
OUT
V
DD
Chip Enable Pin
No Connection
Ground Pin
Output Pin
Input Pin
Description
SOT-23-5 Pin Descriptions
Pin No.
Symbol
1
2
3
4
5
V
DD
GND
CE /CE
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Output Pin
Description
The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate
level). It is recommended that the tab be connected to the ground plane on the board, or otherwise be left floating.
(2)
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.
(1)
4
RP173x
No. EA-256-171101
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage (CE pin)
Output Voltage
Output Current
DFN(PLP)1010-4
P
D
Power Dissipation
(1)
SC-88A
SOT-23-5
Tj
Tstg
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 lifetime 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.
Item
Rating
12
12
−0.3
to 6.0
165
JEDEC STD. 51-7
Test Land Pattern
Standard Test Land
Pattern
JEDEC STD. 51-7
Test Land Pattern
800
380
660
−40
to 125
−55
to 125
Unit
V
V
V
mA
mW
°C
°C
RECOMMENDED OPERATING CONDITIONS
Recommended Operating Conditions
Symbol
Item
V
IN
Ta
Input Voltage
Operating Temperature Range
RECOMMENDED OPERATING CONDITIONS
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 conditions by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended operating
conditions.
Rating
2.5 to 11.0
(2)
−40
to 85
Unit
V
°C
(1)
(2)
Refer to
POWER DISSIPATION
for detailed information.
V
SET
+ 6.5 V
≤ 11.0 V
5
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