MIC38300_10 Datasheet, PDF (6/12 Pages) Micrel Semiconductor – HELDO 3A High Efficiency Low Dropout Regulator

Micrel, Inc.
Typical Characteristics
V_IN = 3.3V, V_OUT = 1.8V, C_OUT = 10µF, R_LPF = 25kΩ, I_OUT = 100mA, unless noted
Switch Frequency vs.
RLPF Resistance (3.3V-1.0V)
3
Switch Frequency vs.
RLPF Resistance (3.3V-1.8V)
3
2.5
1A
2
2A
2.5
500mA
2A
2
1.5 10mA
500mA
1
1.5A
0.5
1.5
1A
1
10mA
1.5A
0.5
010
100
1000
RLPF RESISTANCE (kohms)
010
100
1000
RLPF RESISTANCE (kohms)
Switch Frequency vs.
RLPF Resistance (5.0V-1.8V)
3
1.5A
2A
2.5
1A
2
Switch Frequency vs.
RLPF Resistance (5.0V-2.5V)
3
1.5A
2A
2.5
500mA
2
1.5
1
10mA ^500mA
1.5
1
10mA
1A
0.5
0.5
010
100
1000
RLPF RESISTANCE (kohms)
010
100
1000
RLPF RESISTANCE (kohms)
Max Output Current @ 110°C
Case Temp (1.2V VOUT)
3.5
3.3V
3
2.5
5.0V
2
5.5V
1.5
1
0.5
-040 -20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
Max Output Current @ 110°C
Case Temp (1.8V VOUT)
3.5
3
5.0V
2.5
2
5.5V
1.5
1
0.5
-040 -20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
MIC38300
Switch Frequency vs.
RLPF Resistance (5.0V-1.0V)
3
2.5
1.5A
2A
2
1A
1.5
500mA
1
10mA
0.5
010
100
1000
RLPF RESISTANCE (kohms)
Max Output Current @ 110°C
Case Temp (1.0V VOUT)
3.5
3.3V
3
2.5
5.0V
2
5.5V
1.5
1
0.5
-040 -20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
Max Output Current @ 110°C
Case Temp (2.5V VOUT)
3.5
3
5.0V
2.5
2
1.5
5.5V
1
0.5
-040 -20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
June 2010
6
M9999-061010-D