MIC5219 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 500mA-Peak Output LDO Regulator

MIC5219
Absolute Maximum Ratings
Supply Input Voltage (V_IN) ............................ –20V to +20V
Power Dissipation (P_D) ............................ Internally Limited
Junction Temperature (T_J) ....................... –40°C to +125°C
Lead Temperature (Soldering, 5 sec.) ...................... 260°C
Micrel
Operating Ratings
Supply Input Voltage (V_IN) ........................... +2.5V to +12V
Enable Input Voltage (V_EN) .................................. 0V to V_IN
Junction Temperature (T_J) ....................... –40°C to +125°C
Package Thermal Resistance ......................... see Table 1
Electrical Characteristics
V_IN = V_OUT + 1.0V; C_OUT = 4.7µF, I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typical Max
Units
V_OUT
Output Voltage Accuracy
variation from nominal V_OUT
–1
1
%
–2
2
%
∆V_OUT/∆T
Output Voltage
Temperature Coefficient
Note 2
40
ppm/°C
∆V_OUT/V_OUT Line Regulation
V_IN = V_OUT + 1V to 12V
0.009 0.05 %/V
0.1
∆V_OUT/V_OUT Load Regulation
I_OUT = 100µA to 500mA Note 3
0.05 0.5
%
0.7
V_IN – V_OUT Dropout Voltage, Note 4
I_OUT = 100µA
10
60
mV
80
I_OUT = 50mA
115 175 mV
250
I_OUT = 150mA
175 300 mV
400
I_OUT = 500mA
350 500 mV
600
I_GND
Ground Pin Current, Notes 5, 6
V_EN ≥ 3.0V, I_OUT = 100µA
80
130
µA
170
V_EN ≥ 3.0V, I_OUT = 50mA
350 650
µA
900
V_EN ≥ 3.0V, I_OUT = 150mA
1.8
2.5
mA
3.0
V_EN ≥ 3.0V, I_OUT = 500mA
12
20
mA
25
PSRR
Ground Pin Quiescent Current,
Note 6
Ripple Rejection
V_EN ≤ 0.4V
V_EN ≤ 0.18V
f = 120Hz
0.05
3
µA
0.10
8
µA
75
dB
I_LIMIT
∆V_OUT/∆P_D
e_no
Current Limit
Thermal Regulation
Output Noise
ENABLE Input
V_OUT = 0V
Note 7
I_OUT = 50mA, C_OUT = 2.2µF, C_BYP = 0
I_OUT = 50mA, C_OUT = 2.2µF, C_BYP = 470pF
700
0.05
500
300
1000
mA
%/W
nV/ Hz
nV/ Hz
V_ENL
Enable Input Logic-Low Voltage
V_EN = logic low (regulator shutdown)
0.4
V
0.18
I_ENL
I_ENH
Enable Input Current
V_EN = logic high (regulator enabled)
V_ENL ≤ 0.4V
V_ENL ≤ 0.18V
V_ENH ≥ 2.0V
2.0
V
0.01 –1
µA
0.01 –2
µA
2
5
20
µA
25
July 2000
3
MIC5219