R1116x SERIES
LOW NOISE 150mA LDO REGULATOR
NO. EA-126-111026
1
OUTLINE
The R1116x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, 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 short current limit circuit, a chip enable circuit, and so on.
These ICs perform with low dropout vol t age and the chip -enable f unction. The sup ply current at no load of this
IC is only 10μA, and the line transient response and the load transient response of the R1116x Series are
excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment.
The supply current at no load of R1116x Series is remarkably reduced compared with R1114x Series. The
mode change signal to reduce th e suppl y current i s not necessary. The output volt age a ccura cy is also improved.
(±1.5%)
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are SOT-23-5
and SON1612-6 therefore high density mounting of the ICs on boards is possible.
R1126N Series that a pin configuration differs from R1116N Series are available.
FEATURES
• Supply Current..................................................................... Typ. 10μA
• S
tandby Current................................................................... Typ. 0.1μ
A
•
Input Voltage Range ............................................................ 1.8V to 6.0V
• Output Voltage Range..........................................................1.5V to 4.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Dropout Voltage ................................................................... Typ. 0.29V (IOUT=150mA,VOUT=2.8V)
• Rippl
e Rejection................................................................... Typ. 70dB (f=1kHz, V
OUT=3.0V)
Typ. 53dB (f=10kHz)
•
Output
Voltage Accuracy......................................................±1.5% (1.5V
<
=
VOUT
<
=
3.0V), ±2.0% (VOUT>3.0V)
•
Temperature-Drift Coefficient of Output Voltage .................. Typ. ±100ppm/°
C
• Line
Regulation.................................................................... Ty
p. 0.02%/V
•
Packages ............................................................................ SOT-23-5 , SON1612-6
•
Built-in Fold Back Protection Circuit .................................... Typ. 40mA (Current at short mode)
•
Ceramic capacitors are recommended to be used with this IC
... CIN=COUT=1.0μF (Ceramic)
APPLICATIONS
• Power source for portable communication equipment.
•
Power source for portable music player
.
•
Power source for electrical appliances such a s cameras, VCRs and camcorde rs.
• Power source for battery-powered equipm
ent.
R1116x
2
BLOCK DIAGRAMS
R1116xxx1B R1116xxx1D
V
DD
GND
V
OUT
CE
Vref
Current Limit
V
DD
GND
V
OUT
CE
Vref
Current Limit
SELECTION GUIDE
The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at
the user’ s req uest.
Product Name Package Quantity per Reel Pb Free Halogen Free
R1116Dxx1∗-TR-FE
SON1612-6 4,000 pcs Yes Yes
R1116Nxx1∗-TR-FE
SOT-23-5 3,000 pcs Yes Yes
xx : The output voltage can be designated in the range from 1.5V(15) to 4.0V(40) in 0.1V steps.
(For other voltages, please refer to MARK INFORMA TIONS.)
∗ : CE pin polarity and auto discharge function at off state are options as follows.
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state