RP100 SERIES
LOW NOISE 200mA LDO REGULATOR
OUTLINE
The RP100 Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference
unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load
transient response of the RP100 Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are PLP
therefore high density mounting of the ICs on boards is possible.
Preliminary
NO.EA-
FEATURES
•
•
•
•
•
•
•
•
•
Low Supply Current...................................................................... Typ. 18µA
Standby Mode .............................................................................. Typ. 0.1µA
Low Dropout Voltage .................................................................... Typ. 0.14V (I
OUT
=150mA 2.5V Output type)
High Ripple Rejection................................................................... Typ. 75dB (f=1kHz 2.5V Output type)
Low Temperature-Drift Coefficient of Output Voltage
······························
Typ.
±30ppm/°C
Excellent Line Regulation............................................................. Typ. 0.02%/V
High Output Voltage Accuracy......................................................
±1.0%
Small Packages............................................................................ PLP1612-4, SOT-23-5
Output Voltage.............................................................................. 1.2V, 1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.5V,
2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V
•
Built-in Fold Back Protection Circuit............................................. Typ. 40mA (Current at short mode)
•
Ceramic capacitors are recommended to be used with this IC
….
C
IN
=C
OUT
=1µF
or more
APPLICATIONS
•
Power source for portable communication equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
Rev. 0.04
1
RP100
BLOCK DIAGRAMS
RP100xxx1B
V
DD
V
DD
RP100xxx1D
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;
RP100xxx1x-xx
↑ ↑
a b
Code
a
↑ ↑
c d
←Part
Number
Contents
Designation of Package Type:
K: PLP1612-4
N: SOT-23-5
Setting Output Voltage (V
OUT
):
1.2V, 1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V,
3.0V, 3.3V
Designation of Active Type:
B: active high type
D: active high, with auto discharge
Designation of Taping Type:
Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
b
c
d
Rev 0.04
2
Microcontroller MCU
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