R1115Z SERIES
LOW NOISE 150mA LDO Regulator
NO.EA-107-130410
1
OUTLINE
The R1115Z Series are CMOS-based voltage regulator ICs with extremely low supply current, low
ON-resist ance, and high ripple rejection . Each of these ICs consist s of a volt age reference u nit, 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 R1115Z Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communi cation equipment.
The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs is WLCSP-4-P4,
therefore high density mounting of the ICs on boa
rds is possible.
FEATURES
Supply Current..................................................................... Typ. 75μA
S
tandby Current................................................................... Typ. 0.1μ
A
Output
Volt
age Range...........................................................1.5V to 4.0V (0.1V step s)
(For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage ................................................................... Typ. 0.22V (IOUT=150mA, VOUT=3.0V)
Rippl
e Rejection................................................................... Typ. 70dB (f=
1kHz)
T
yp. 60dB (f=10kHz)
Temperature-Drift Coef
ficient of Output Voltage .................. Typ. ±100ppm/°
C
Line
Regulation.................................................................... T
y
p. 0.02%/V
Output
Voltage Ac
curacy...................................................... ±
2.0%
Package ............................................................................. WLCSP-4-P4
Built-in Fold Back Protection Circuit .................................... Typ. 40mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC
... CIN=COUT=1μF (VOUT<2.5V)
C
IN=1μF, COUT=0.47μF (VOUTT
>
=
2.5V)
APPLICATIONS
Power source for portable communication equipment.
Power source for electri cal appliances such as ca meras, VCRs and camcorders.
Power source for battery-powered equipm
ent.
Discontinued Product
R1115Z
2
BLOCK DIAGRAMS
R1115Zxx1A R1115Zxx1B
V
DD
GND
V
OUT
CE
Vref
Curr ent Li mi t
V
DD
GND
V
OUT
CE
Vref
Current Li mi t
R1115Zxx1D
V
DD
GND
V
OUT
CE
Vref
Curr ent Li mi t
Discontinued Product