MIC5239 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – Low Quiescent Current 500mA UCap LDO Regulator

MIC5239
Absolute Maximum Ratings (Note 1)
Supply Voltage (V_IN) ..................................... –20V to +32V
Enable Input Voltage (V_EN) .......................... –0.3V to +32V
Power Dissipation (P_D), Note 3 ............... Internally Limited
Junction Temperature (T_J) ....................... –40°C to +125°C
Storage Temperature (T_S) ....................... –65°C to +150°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
ESD Rating, Note 4
Micrel
Operating Ratings (Note 2)
Supply Voltage (V_IN) ........................................ 2.3V to 30V
Enable Input Voltage (V_EN) ................................. 0V to 30V
Junction Temperature (T_J) ....................... –40°C to +125°C
Package Thermal Resistance
MSOP (θ_JA) ......................................................... 80°C/W
SOT-223 (θ_JA) ..................................................... 50°C/W
Electrical Characteristics
V_IN = V_OUT + 1V; V_EN ≥ 2.0V; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typ
V_OUT
Output Voltage Accuracy
variation from nominal V_OUT
–1
–2
Max Units
1
%
+2
%
∆V_OUT/V_OUT
∆V_OUT/V_OUT
∆V
Line Regulation
Load Regulation
Dropout Voltage, Note 6
I_GND
Ground Pin Current
I_GND(SHDN) Ground Pin in Shutdown
I_SC
Short Circuit Current
e_n
Output Noise
FLAG Output
V_FLG
Low Threshold
High Threshold
V_OL
FLAG Output Low Voltage
I_LEAK
FLAG Output Leakage
Enable Input
V_IL
Input Low Voltage
V_IH
Input High Voltage
I_IN
Enable Input Current
V_IN = V_OUT + 1V to 30V
I_OUT = 100µA to 500mA, Note 5
I_OUT = 100µA
I_OUT = 150mA
I_OUT = 500mA
V_EN ≥ 2.0V, I_OUT = 100µA
V_EN ≥ 2.0V, I_OUT = 150mA
V_EN ≥ 2.0V, I_OUT = 500mA
V_EN ≤ 0.6V, V_IN = 30V
V_OUT = 0V
10Hz to 100kHz, V_OUT = 3.0V, C_L = 3.3µF
% of V_OUT
% of V_OUT
V_IN = V_OUT(nom) – 0.12V_OUT, I_OL = 200µA
V_OH = 30V
regulator off
regulator on
V_EN = 0.6V, regulator off
V_EN = 2.0V, regulator on
V_EN = 30V, regulator on
0.06 0.5
%
0.5
1
%
50
mV
260 350 mV
400 mV
350
mV
23
40
µA
45
µA
1.3
5
mA
8.5
15
mA
0.1
1
µA
850 1200 mA
160
µVrms
94
%
95
%
150
mV
0.1
µA
0.6
V
2.0
V
–1.0 0.01 1.0
µA
–2.0
2.0
µA
0.15 1.0
µA
2.0
µA
0.5
2.5
µA
5.0
µA
Note 1.
Note 2.
Note 3:
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
The maximum allowable power dissipation of any T_A (ambient temperature) is P_D(max) = (T_J(max) – T_A) ÷ θ_JA. Exceeding the maximum
allowable power dissipation will result in excessive die termperature, and the regulator will go into thermal shutdown. The θ_JA of the MIC5239-
x.xBMM (all versions) is 80°C/W, the MIC5239-x.xBM (all versions) is 63°C/W, and the MIC5239-x.xBS (all versions) is 50°C/W mounted on a
PC board (see “Thermal Characteristics” for further details).
January 2002
3
MIC5239