RP106x Series
Low Voltage 400mA LDO Regulator
NO. EA-180-090303
OUTLINE
The RP106 series are low voltage 400mA voltage regulator. These ICs had been further improved of
low-voltage capability compared with previous low-voltage product. Moreover, the output voltage accuracy also
has achieved ±0.8% (previous products are ±1.0%) and ultra-high accuracy.
Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, and
a current limit circuits for over-current for the destruction prevention by the over-current. Even the output voltage
is set at 1.5V, ON resistance of internal FET is typically 0.55Ω.
Since the packages for these ICs are SOT-23-5, SC-88A, DFN(PLP)1212-6 and 0.69mm (0.4mm ball pitch)
WLCSP-4-P5(Wafer Level Chip Size Package), therefore high density mounting of the ICs on boards is possible.
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FEATURES
Ultra-low Voltage
Input Voltage Range ····························································1.0V ~ 3.6V
Output Voltage Range··························································Stepwise setting with a step of 0.1V
in the range of 0.7V to 1.8V is possible.
(Including 1.05V, 1.25V and 1.85V)
Built-in drive for ultra-low ON resistance
ON Resistance ·····································································Typ.0.55Ω (V
OUT
=1.5V)
Typ.0.8Ω (V
OUT
=1.0V)
Typ.1.0Ω (V
OUT
=0.8V)
Others
High Output Voltage Accuracy ·············································±0.8% (V
OUT
>
1.0V)
=
Supply Current ·····································································Typ.48µA
Ripple Rejection···································································60dB (V
OUT
=0.8V, f=10kHz)
Built-in Fold Back Protection Circuit ····································Typ.110mA
Package ···············································································DFN(PLP)1212-6, WLCSP-4, SOT-23-5, SC-88A
Ceramic capacitors are recommended to be used this IC···1.0µF or more
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RP106x
BLOCK DIAGRAMS
RP106xxxxB
V
DD
V
DD
RP106xxxxD
V
OUT
V
OUT
-
+
Vref
Vref
Current Limit
-
+
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, version, and the taping type for the ICs can be selected at the user’s request.
The selection can be made with designating the part number as shown below;
RP106 x xx x x-xx-x
↑ ↑ ↑ ↑
a b a’ c
Code
↑
d
↑
e
←Part
Number
Contents
Designation of Package Type:
RP106Kxx1x-xx : DFN(PLP)1212-6
RP106Nxx1x-xx : SOT-23-5
RP106Qxx2x-xx : SC-88A
RP106Zxx1x-xx : WLCSP-4-P5
Setting Output Voltage (V
OUT
) :
Fixed Type: 07 to 18 Stepwise setting with 0.1V increment in the range from 0.7V to 1.8V
Exception: 1.05V=RP106x10xx5-xx
1.25V=RP106x12xx5-xx
1.85V=RP106x18xx5-xx
Designation of Active Type:
B:”H” Active, without auto discharge function* at OFF state.
D:”H” Active, with auto discharge function* at OFF state.
Designation of composition of pin plating:
Ex.TR (refer to Taping Specifications: TR type is the standard direction)
Designation of composition of pin plating:
-F: Lead free plating: SOT-23-5, SC-88A
None: Au plating: DFN(PLP)1212-6, WLCSP-4-P5
a, a’
b
c
d
e
* When the mode is into standby with CE signal, auto-discharge transistor turns on, and it makes the turn-off speed faster than normal type.
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RP106x
PIN CONFIGURATION
4
3
WLCSP-4-P5
3
4
1
2
2
1
Silicon Side
Bump Side
DFN(PLP)1212-6
6
5
4
4
5
6
TOP VIEW
BOTTOM VIEW
3
1
2
3
2
1
5
SOT-23-5
4
MARK SIDE
1
2
3
SC-88A
5
4
MARK SIDE
1
2
3
3
RP106x
PIN DESCRIPTIONS
RP106Z: WLCSP-4-P5
Pin No
1
2
3
4
Symbol
V
DD
CE
GND
V
OUT
Input Pin
Chip Enable Pin (“H” Active)
Ground Pin
Output Pin
Description
RP106Q: SC-88A
Pin No
1
2
3
4
5
Symbol
CE
NC
GND
V
OUT
V
DD
No Connection
Ground Pin
Output Pin
Input Pin
Description
Chip Enable Pin (“H” Active)
RP106K: DFN(PLP)1212-6
Pin No
1
2
3
4
5
6
Symbol
NC
GND
CE
V
DD
NC
V
OUT
No Connection
Ground Pin
Chip Enable Pin (“H” Active)
Input Pin
No Connection
Output Pin
Description
RP106N: SOT-23-5
Pin No
1
2
3
4
5
Symbol
V
DD
GND
CE
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin (“H” Active)
No Connection
Output Pin
Description
4
RP106x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage(CE Pin)
Output Voltage
Output Current
WLCSP-4-P5
P
D
Power Dissipation *
SC-88A
DFN(PLP)1212-6
SOT-23-5
Ta
Tstg
Ambient Temperature Range
Storage Temperature Range
-40 ~ 85
-55 ~ 125
Item
Rating
4.0
-0.3 ~ 4.0
-0.3 ~ V
IN
+ 0.3
500
278
380
400
420
°C
°C
mW
Unit
V
V
V
mA
* For Power Dissipation, please refer to PACKAGE INFORMATION to be described
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.
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