R1511 Datasheet, PDF (19/20 Pages) RICOH electronics devices division – Input Voltage Range 3.5V to 36V

R1511x
EFFECTIVE SERIES RESISTANCE (ESR) VS. OUTPUT CURRENT
Ceramic type output capacitor is recommended for this series; however, the other output capacitors with low
ESR also can be used. As for reference, the below graphs show the relationship between output current (I_OUT)
and effective series resistance (ESR). The noise level of the output current (I_OUT) was measured by the test
circuit and is lower than the specified value.
VDD
VOUT
CIN ^R1511xxxxB
COUT
Series
IOUT
GND
CE
VDD
VOUT
CIN ^R1511x001C
COUT
Series
IOUT
GND
VFB
ESR
CIN=Ceramic1.0μF, COUT=Ceramic6.8μF
ESR
CIN=Ceramic1.0μF, COUT=Ceramic6.8μF
Measurement Conditions
・ Noise Frequency Range: 10Hz to 1MHz
・ Ambient Temperature: -40ºC to 105ºC
・ Shaded Area: Noise level is lower than the specified value (40μV)
・ Capacitor: CIN=Ceramic 1.0µF, COUT=Ceramic 6.8µF (C4532X7S1H685K)
R1511x030B
R1511x050B
VIN=3.5V to 36V
100
100
V =5V to 36V
IN
10
Ta=-40°C
105°C
25°C
10
Ta=-40°C
25°C
105°C
1
1
0.1
0.1
0.01
0
50 100 150 200 250 300
Output Current IOUT (mA)
R1511x090B
100
10 _Ta=-40°C
105°C
25°C
VIN=9V to 36V
1
0.01
0
50 100 150 200 250 300
Output Current IOUT (mA)
R1511x001C (VOUT=12V)
VIN=12V to 36V
100
105°C
10 Ta=-40°C ^25°C
1
0.1
0.1
0.01
0
50 100 150 200 250 300
Output Current IOUT (mA)
0.01
0
50 100 150 200 250 300
Output Current IOUT (mA)
19