MIC5250 Datasheet, PDF (4/12 Pages) Micrel Semiconductor – Dual 150mA μCap CMOS LDO Regulator Preliminary Information

MIC5250
Typical Characteristics
Power Supply
Rejection Ratio
100
I_OUT = 100µA
V_IN = 4V
80 ^COUT ^{= 1µF tant V}OUT ^{= 3V}
60
40
20
10E1+01 11E0+02 1E1k+3 11E0+k4 11E0+05k 1E1M+6 11E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
100
I_OUT = 150mA
80 ^C_OUT ^{= 1µF tant}
V_IN = 4V
V_OUT = 3V
60
40
20
10E1+01 11E0+02 1E1k+3 11E0+k4 11E0+05k 1E1M+6 11E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
100
V_IN = 4V
80 ^VOUT ^{= 3V}
60
40
I_OUT = 100mA
20
C_OUT = 10µF cer.
C_BYP = 0.01µF
10E1+01 11E0+02 1E1k+3 11E0+k4 11E0+05k 1E1M+6 11E0M+7
FREQUENCY (Hz)
Power Supply Ripple Rejection
vs. Voltage Drop
80
70
100mA
I_OUT = 100mA
60
50
40
10mA
30
100µA
20
10
C_OUT = 10µF cer.
C_BYP = 0.01µF
00 _{200 400 600 800 1000}
VOLTAGE DROP (mV)
MIC5250
Power Supply
Rejection Ratio
100
I_OUT = 10mA
80 ^COUT ^{= 1µF tant}
V_IN = 4V
V_OUT = 3V
60
40
20
0
1E1+01 11E0+02 1E1k+3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
100
80
60
40
20 _{VIN = 4V}
I_OUT = 100µA
C_OUT = 10µF cer.
V_OUT = 3V _{CBYP = 0.01µF}
0
1E10+1 11E0+02 1E1k+3 11E0+k4 11E0+0k5 1E1M+6 1E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
100
V_IN = 4V
80 ^VOUT ^{= 3V}
60
40
I_OUT = 150mA
20 C_OUT = 10µF cer.
C_BYP = 0.01
0
1E10+1 11E0+02 1E1k+3 1E0k+4 1E00+k5 11EM+610EM+7
FREQUENCY (Hz)
Noise Performance
10
I_L = 100µA
1
V_IN = 4V
0.1 _{VOUT = 3V}
C_OUT = 1µF cer.
C_BYP = 0.01µF
0.01
1E10+1 11E0+02 1E1k+3 11E0+k4 110E0+k5 11EM+6
FREQUENCY (Hz)
4
Micrel
Power Supply
Rejection Ratio
100
I_OUT = 100mA
80 ^C_OUT ^{= 1µF tant}
V_IN = 4V
V_OUT = 3V
60
40
20
0
1E10+1 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
100
V_IN = 4V
80 ^VOUT ^{= 3V}
60
40
I_OUT = 10mA
20
C_OUT = 10µF cer.
C_BYP = 0.01µF
10E10+1 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 11E0M+7
FREQUENCY (Hz)
Power Supply Ripple Rejection
vs. Voltage Drop
80
100µA 10mA
70
60
50
40
30
150mA
20
I_OUT = 100mA
10
C_OUT = 1µF
00 _{200 400 600 800 1000}
VOLTAGE DROP (mV)
Noise Performance
10
I_L = 100µA
1
V_IN = 4V
0.1 V_OUT = 3V
C_OUT = 10µF cer.
C_BYP = 0.01µF
0.01
11E0+1 11E0+02 1E1k+3 1E0k+4 1E00+k5 11EM+6
FREQUENCY (Hz)
March 2000