MIC35302 Datasheet, PDF (3/8 Pages) Micrel Semiconductor – 3A, Low Voltage μCap LDO Regulator

Micrel, Inc.
MIC35302
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ..................................... –0.3V to +6.5V
Enable Input Voltage (V_EN)........................... –0.3V to +6.5V
Power Dissipation .....................................Internally Limited
Junction Temperature .........................–40°C ≤ T_J ≤ +125°C
Storage Temperature (T_s) ...................–65°C ≤ T_J ≤ +150°C
Lead Temperature (soldering, 5sec.)......................... 260°C
ESD Rating⁽³⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Supply voltage (V_IN) ................................... +2.25V to +6.0V
Enable Input Voltage (V_EN)................................ 0V to +6.0V
Junction Temperature Range .............–40°C ≤ T_J ≤ +125°C
Maximum Power Dissipation..................................... Note 4
Package Thermal Resistance
TO-252 (θ_JC) ........................................................3°C/W
TO-252 (θ_JA) ......................................................56°C/W
Electrical Characteristics⁽⁵⁾
T_J = 25°C with V_IN = V_EN = V_OUT + 1V; I_OUT = 10mA; bold values indicate –40°C < T_J < +125°C, unless otherwise noted.
Parameter
Condition
Min Typ Max Units
Output Voltage Line Regulation
Output Voltage Load Regulation
Dropout Voltage, V_IN – V_OUT
Note 6
V_IN = V_OUT +1.0V to 6.0V
I_OUT = 10mA to 3A
I_OUT = 1.5A
I_OUT = 3A
0.02 0.5
%
0.2
1
%
250 450
mV
370 600
mV
Ground Pin Current, Note 7
Ground Pin Current in Shutdown
Current Limit
Start-up Time
Enable Input
I_OUT = 3A
V_IL ≤ 0.5V, V_IN = V_OUT + 1V
V_OUT = 0
V_EN = V_IN, I_OUT = 10mA, C_OUT = 47µF
20
50
mA
1.0
µA
3.5
6
8.5
A
35
150
µs
Enable Input Threshold
Regulator enable
2.25
V
Regulator shutdown
0.8
V
Enable Pin Input Current
Adjust Pin
V_IL ≤ 0.8V (regulator shutdown)
V_IH ≥ 2.25V (regulator enabled)
4
µA
1
15
75
µA
Reference Voltage
1.228 1.240 1.252
V
1.215
1.265
V
Reference Voltage Temp. Coefficient Note 8
20
ppm/°C
Adjust Pin Bias Current
40
80
nA
120
nA
Adjust Pin Bias Current Temp.
Coefficient
0.1
nA/°C
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. 200V Machine Model
4. P_D(MAX) = (T_J(MAX) – T_A) / θ_JA, where θ_JA, depends upon the printed circuit layout. See “Applications Information.”
5. Specification for packaged product only.
6. V_DO = V_IN – V_OUT when V_OUT decreased to 98% of its nominal output voltage with V_IN = V_OUT +1V. For output voltages below 1.75V, dropout voltage
specification does not apply due to a minimum input operating voltage of 2.25V.
7. I_GND is the quiescent current. I_IN = I_GND + I_OUT.
8. Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 200mA load pulse at V_IN = 6V for t = 10ms.
October 2009
3
M9999-102309-A