RP152/153 Series
PRELIMINARY
150mA Dual LDO REGULATOR
NO.EA-200-20090319
OUTLINE
The RP152/153x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low dropout, and high ripple rejection. Each of these voltage regulator ICs consists of a voltage reference unit,
an error amplifier, resistors for setting Output Voltage, a current limit circuit, and a chip enable circuit. Moreover, in C
Version of RP152, the start-up sequence circuit is built-in.
These ICs perform with low dropout voltage due to built-in transistor with low ON resistance, and a chip enable
function prolongs the battery life of each system. The line transient response and load transient response of the
RP152/153x 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 internally fixed with high accuracy. Since the packages for these ICs are SOT-23-6
and DFN1212-6 for RP152, and DFN1216-8 for RP153, dual LDO regulators are included in each package are high
density mounting of the ICs on boards is possible.
In RP153, the power supply of each circuit can be individually supplied. The transient response characteristic of D
and E Version is improved. (The supply current: Typ. 85μA).
FEATURES
Supply Current ··············································································· Typ. 40μA (VR1, VR2)
Supply Current (RP153xxxxD/E) ··················································· Typ. 85μA (VR1, VR2)
Standby Mode ················································································ Typ. 0.1μA (VR1, VR2)
Low Dropout Voltage······································································ Typ. 0.22V(I
OUT
=150mA, V
OUT
=2.8V)
High Ripple Rejection ···································································· TYP. 70dB (f=1kHz)
TYP. 65dB (f=10kHz)
High Output Voltage Accuracy ·······················································
±1.0%
Low Temperature-Drift Coefficient of Output Voltage ···················· Typ.
±80ppm/°C
Excellent Line Regulation ······························································ Typ. 0.02%/V
Small Packages ············································································· RP152: DFN1212-6, SOT-23-6,
RP153: DFN1216-8
Built-in Fold Back Protection Circuit ·············································· Typ. 40mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC ··············· 0.22μF or more
APPLICATIONS
Power source for electrical applications such as cameras, VCRs and camcorders
Power source for battery-powered equipment
Power source for portable communication equipment
Ver.1.6
1
RP152/153x
Preliminary
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;
RP152x xxx x-xx-x
↑ ↑ ↑ ↑ ↑
a b c d e
←Part
Number
RP153x xxx x-xx-x
↑ ↑ ↑ ↑ ↑
a b c d e
Code
a
←Part
Number
Contents
Designation of Package Type:
RP152Nxxxx-xx-x: SOT-23-6
RP152Lxxxx-xx-x: DFN1212-6
RP153Lxxxx-xx-x: DFN1216-8
Setting combination of 2ch Output Voltage (V
OUT
):
Serial Number for Voltage Setting,
Stepwise setting with a step of 0.1V in the range of 0.8V to 3.6V is possible for each channel.
Designation of Active Type
RP152
A: without auto-discharge function*
B: with auto-discharge function*
C: The start-up sequence function with auto-discharge*
RP153
A: without auto-discharge function*
B: with auto-discharge function*
D: without auto-discharge function*, (the transient response improved type)
E: with auto-discharge function*, (the transient response improved type)
Designation of Taping Type (refer to Taping Specifications)
Ex.TR : SOT-23-6, DFN1212-6
Ex.E2 : DFN1216-8
Designation of composition of plating:
-F: Lead free plating (SOT-23-6)
None: Au plating (DFN1212-6, DFN1216-8)
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.
Ver.1.6
4
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