RP131x SERIES
LOW ON RESISTANCE / LOW VOLTAGE 1A LDO
NO.EA-174-160426
OUTLINE
The RP131x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A
capability. These ICs are capable of the low input voltage (Min.1.6V) and also the minimum output voltage can be
set from 0.8V. (The output voltage is fixed in the IC.)
Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor net for setting output voltage,
a chip enable circuit, current limit circuits for over-current and short, and a thermal-shutdown circuit.
A standby mode with ultra low supply current can be realized with the chip enable function.
The packages for these ICs are DFN1616-6B and DFN(PLP)1820-6 which are suitable for high density mounting
of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 with high power dissipation are also available.
FEATURES
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Output Current ............................................................ Min. 1A
Supply Current ............................................................. Typ. 65μA
Standby Current ......................................................... Typ. 0.15μA
Input Voltage Range ................................................... 1.6V to 6.5V
Output Voltage Range .................................................. 0.8V to 5.5V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage............................................................ Typ. 0.5V (V
OUT
=2.8V,
I
OUT
=1A)
Ripple Rejection ........................................................... Typ. 70dB (f=1kHz, V
OUT
=2.8V)
Output Voltage Accuracy ..............................................
±1.0%
Temperature-Drift Coefficient of Output Voltage .......... Typ.
±100ppm/°C
Line Regulation ............................................................ Typ. 0.05%/V
Load Regulation ......................................................... Typ. 20mV at I
OUT
=300mA,
Typ. 80mV at I
OUT
=1A
Packages ............................................................... DFN1616-6B, DFN(PLP)1820-6, SOT-89-5, HSOP-6J,
TO-252-5-P2
Built-in Inrush current limit circuit ............................... Typ. 500mA
Built-in Fold-Back Protection Circuit ........................... Typ. 250mA (Current at short mode)
Built-in Thermal Shutdown Circuit .............................. Thermal Shutdown Temperature ; Typ. 165°C
Released Temperature ; Typ. 135°C
Built-in Auto Discharge Function ................................ D version
Ceramic capacitors are recommended to be used with this IC .... 2.2μF or more (V
OUT
≤3.6V)
4.7μF or more (V
OUT
>3.6V)
APPLICATIONS
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Power source for battery-powered equipment.
Power source for portable communication equipment.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for Notebook PC.
Power source for home appliances.
1
RP131x
NO.EA-174-160426
BLOCK DIAGRAMS
RP131xxx1B
V
DD
V
OUT
V
DD
RP131xxx1D
V
OUT
Vref
Current Limit
Thermal Shutdown
Vref
Current Limit
Thermal Shutdown
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, auto discharge function, package for the ICs can be selected at the user’s request.
Product Name
RP131Lxx1∗-TR
RP131Kxx1∗-TR
RP131Hxx1∗-T1-FE
RP131Sxx1∗-E2-FE
RP131Jxx1∗-T1-FE
Package
DFN1616-6B
DFN(PLP)1820-6
SOT-89-5
HSOP-6J
TO-252-5-P2
Quantity per Reel
5,000 pcs
5,000 pcs
1,000 pcs
1,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
Yes
Yes
xx : The output voltage can be designated in the range from 0.8V(08) to 5.5V(55) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
∗
:
The auto discharge function at off state are options as follows.
(B) without auto discharge function at off state
(D) with auto discharge function at off state
2
RP131x
NO.EA-174-160426
•
DFN(PLP)1820-6
Pin No.
1
2
3
4
5
6
Symbol
V
OUT
V
OUT
GND
CE
V
DD
V
DD
Output Pin
∗2
Output Pin
∗2
Ground Pin
Chip Enable Pin ("H" Active)
Input Pin
∗2
Input Pin
∗2
Pin Description
∗1)
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.
∗2)
When you use this IC, please make sure be wired with 1pin with 2pin and 5pin with 6pin.
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SOT-89-5
Pin No.
1
2
3
4
5
Symbol
NC
GND
CE
V
DD
V
OUT
No Connection
Ground Pin
Chip Enable Pin ("H" Active)
Input Pin
Output Pin
Pin Description
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HSOP-6J
Pin No.
1
2
3
4
5
6
Symbol
V
OUT
GND
NC
CE
GND
V
DD
Output Pin
Ground Pin
∗3
No Connection
Chip Enable Pin ("H" Active)
Ground Pin
∗3
Input Pin
Pin Description
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∗3)
When you use this IC, please make sure be wired with 2pin and 5pin.
TO-252-5-P2
Pin No.
1
2
3
4
5
Symbol
V
OUT
GND
GND
CE
V
DD
Output Pin
Ground Pin
∗4
Ground Pin
∗4
Chip Enable Pin ("H" Active)
Input Pin
Pin Description
∗4)
When you use this IC, please make sure be wired with 2pin and 3pin.
4
RP131x
NO.EA-174-160426
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Power Dissipation (DFN1616-6B)
∗
Power Dissipation (DFN(PLP)1820-6)
∗
P
D
Power Dissipation (SOT-89-5)
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Power Dissipation (HSOP-6J)
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Power Dissipation (TO-252-5-P2)
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T
opt
T
stg
Operating Temperature Range
Storage Temperature Range
Item
Rating
7.0
−0.3
to 7.0
−0.3
to V
IN
+0.3
640
880
900
1700
1900
−40
to 85
−55
to 125
°C
°C
mW
Unit
V
V
V
∗)
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
PCB Design
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