MIC69301 Datasheet, PDF (4/11 Pages) Micrel Semiconductor – Single Supply VIN, Low VIN, Low VOUT, 3A LDO

Micrel, Inc.
MIC69301/2/3
Absolute Maximum Ratings⁽¹⁾
Supply Input Voltage (V_IN to GND) .................. –0.3V to +6V
Logic Input Voltage (V_EN to GND). .......–0.3V to (V_IN + 0.3V)
Power Dissipation (P_D) ........................... Internally Limited⁽³⁾
Flag ..................................................................................6V
Storage Temperature (T_S).........................–65°C to +125°C
ESD⁽⁴⁾ ............................................................................. 2kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN)....................................... 1.65V to 5.5V
Enable Input Voltage (V_EN)..................................... 0V to V_IN
Junction Temperature (T_J) ..................–40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
S-PAK-5 (θ_JC).......................................................2°C/W
S-PAK-5 (θ_JA).....................................................38°C/W
TO-263-5 (θ_JC) .....................................................2°C/W
EPAD SOIC-8 (θ_JA)............................................41°C/W
Electrical Characteristics⁽⁴⁾
T_A = 25°C with V_IN = V_OUT + 1V; bold values indicate –40°C< T_J < +125°C; I_OUT = 10mA; C_OUT = 10µF ceramic, unless noted.
Parameter
Conditions
Min Typ Max
Output Voltage Accuracy
Over temperature range
–2
+2
Output Voltage Line Regulation
(Note 5)
Output Voltage Load Regulation
V_IN – V_O; Dropout Voltage
(Note 6)
Ground Pin Current
Ground Pin Current in Shutdown
Current Limit
Start-up Time
Thermal Shutdown
V_IN = V_OUT +1.0V to 5.5V
For V_OUT ≥ 0.65V, V_IN = 1.65V to 5.5V
I_OUT = 10mA to 3A
I_OUT = 1.5A
I_OUT = 3.0A
I_OUT = 10mA
I_OUT = 1.5A
I_OUT = 3.0A
V_EN = 0V
V_OUT = 0V
V_EN = V_IN
±0.2 ±0.3
±0.3
200
300
275
500
1.2
5
12
30
32
75
1
3.3
5.2
10
150
165
Enable Input
Units
%
%/V
%
mV
mV
mA
mA
mA
µA
A
µs
°C
Enable Input Threshold
Enable Pin Input Current
Flag Output
Regulator enable
Regulator shutdown
V_IL ≤ 0.2V (Regulator shutdown)
V_IH ≥ 0.8V (Regulator enable)
0.8 0.57
V
0.2
V
0.005
µA
7
µA
I_FLG(LEAK)
Flag Output Leakage Current (Flag Off)
0.05
µA
V_FLG(LO)
V_FLG
Feedback Pin Current
Output Logic-Low Voltage (under voltage condition),
I_OUT = 5mA
Threshold, % of V_OUT below nominal (falling)
Hysteresis
150
mV
7.5
10
14
%
2
%
0.25
1
µA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. 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 temperature and the regulator will go into thermal shutdown.
4. Specification for packaged product only.
5. Minimum input for line regulation test is set to V_OUT + 1V relative to the highest output voltage.
6. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
For outputs below 1.65V, dropout voltage is considered the input-to-output voltage differential with the minimum input voltage of 1.65V. Minimum
input operating voltage is 1.65V.
March 2010
4
M9999-030310-E