R1126N151B Datasheet, PDF (20/23 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

R1126N
ESR vs. Output Current
When using these ICs, consider the following points:
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.
Measurement conditions
VIN=VOUT+1V
COUT: GRM155B30J105KE18B
Frequency Band: 10Hz to 2MHz
Temperature: −40°C to 25°C
R1126N151x
VIN=1.52V to 6.5V, CIN=COUT=1.0µF
100
Topt=85°C
10
Topt=-40°C
1
R1126N281x
VIN=2.82V to 6.5V
100
Topt=85°C
10
Topt=-40°C
1
0.1
0.1
0.01
0
100
10
1
30 60 90 120 150
Output Current IOUT(mA)
R1126N401x
VIN=4.02V to 6.5V
Topt=85°C
Topt=-40°C
0.01
0
30 60 90 120 150
Output Current IOUT(mA)
0.1
0.01
0
30 60 90 120 150
Output Current IOUT(mA)
20