RP102 SERIES
LOW NOISE 300mA LDO REGULATOR
Preliminary
Rev. 0.05
1
OUTLINE
The RP102 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 RP102 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 WL-CSP
therefore high density mounting of the ICs on boards is possible.
FEATURES
Low Supply Current..............................................................Typ. 50A
Standby Mode ......................................................................Typ. 0.1A
Low Dropout Voltage ............................................................Typ. 0.12V (I
OUT
=300mA 3.3V Output type)
Typ. 0.14V (I
OUT
=300mA 2.5V Output type)
High Ripple Rejection...........................................................Typ. 80dB (f=1kHz 2.5V Output type)
Low Temperature-Drift Coefficient of Output Voltage Typ. 20ppm/C
Excellent Line Regulation.....................................................Typ. 0.02%/V
High Output Voltage Accuracy..............................................1.0%
Small Packages ..................................................................WL-CSP, SOT-23-5
Output Voltage......................................................................1.2V, 1.5V, 1.8V, 2.5V, 2.6V, 2.8V,
2.85V, 2.9V, 3.0V, 3.3V
Built-in Fold Back Protection Circuit.....................................Typ. 50mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC C
IN
=C
OUT
=1F 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.
RP102
Rev. 0.05
3
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;
RP102xxx1x-xx
Part Number
a b c d
Code Contents
a
Designation of Package Type:
Z:WL-CSP4-P2
N:SOT-23-5
b
Setting Output Voltage (V
OUT
):
1.2V, 1.5V,1.8V, 2.5V, 2.6V, 2.8V, 2.85V, 2.9V,3.0V, 3.3V
c
Designation of Active Type:
B: active high type
D: active high, with auto discharge
d
Designation of Taping Type:
Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
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