R1113Z_05 Datasheet, PDF (18/18 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

R1113Z
The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions
when the white noise level is under 40µV (Avg.) are marked as the hatched area in the graph.
(Note: If additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase
compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
<Measurement conditions>
(1) VIN=VOUT+1V
(2) Frequency Band: 10Hz to 1MHz
(3) Temperature: 25°C
R1113Z201B
COUT=2.2µF, CIN=2.2µF
100
R1113Z201B
COUT=4.7µF, CIN=2.2µF
100
10
10
1
1
0.1
0.1
0.01
0.01
0.001
0
30
60
90
120
150
IOUT(mA)
0.001
0
30
60
90
120
150
IOUT(mA)
R1113Z301B
COUT=2.2µF, CIN=2.2µF
100
R1113Z301B
COUT=4.7µF, CIN=2.2µF
100
10
10
1
1
0.1
0.1
0.01
0.01
0.001
0
30
60
90
120
150
IOUT(mA)
0.001
0
30
60
90
120
150
IOUT(mA)
18