MIC37252_06 Datasheet, PDF (3/8 Pages) Micrel Semiconductor – 2.5A, Low Voltage μCap LDO Regulator

Micrel, Inc.
MIC37252
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ......................................................6.5V
Enable Input Voltage (V_EN)............................................6.5V
Power Dissipation .....................................Internally Limited
Junction Temperature .........................–40°C ≤ T_J ≤ +125°C
Storage Temperature ..........................–65°C ≤ T_J ≤ +150°C
Lead Temperature (soldering, 5sec.)......................... 260°C
EDS⁽³⁾
Operating Ratings⁽²⁾
Supply voltage (V_IN) ......................................... 3.0V to 6.0V
Enable Input Voltage (V_EN).................................. 0V to 6.0V
Junction Temperature Range .............–40°C ≤ T_J ≤ +125°C
Maximum Power Dissipation⁽⁴⁾
Package Thermal Resistance
S-Pak (θ_JC) ..........................................................2°C/W
TO-263-5 (θ_JC).....................................................2°C/W
Electrical Characteristics⁽⁵⁾
T_A = 25°C with V_IN = V_OUT + 1V; V_EN = V_IN; I_L = 10mA, bold values indicate –40°C< T_J < +125°C, unless otherwise noted.
Parameter
Condition
Min
Typ
Max
Units
Output Voltage Accuracy
I_L = 10mA
-2
+2
%
Output Voltage Line Regulation
10mA < I_OUT < I_L(max), V_OUT + 1 ≤ V_IN ≤ 6V
V_IN = V_OUT + 1.0V to 6.0V, I_L = 10mA
-3
+3
%
0.02
0.5
%
Output Voltage Load Regulation
V_IN – V_OUT; Dropout Voltage,
Note 6
Ground Pin Current, Note 7
I_L = 10mA to 2.5A
I_L = 1.5A
I_L = 2.5A
I_L = 2.5A
0.2
1
%
400
500
mV
550
1000
mV
40
60
mA
Ground Pin Current in Shutdown
Current Limit
V_IL ≤ 0.5V, V_IN = V_OUT + 1V
V_OUT = 0; V_IN = 3.3V
1.0
µA
3
A
Start-up Time
Enable Input
V_EN = V_IN, I_OUT = 10mA, C_OUT = 47µF
150
250
µs
Enable Input Threshold
Regulator enable
2.25
V
Regulator shutdown
0.8
V
Enable Pin Input Current
V_IL ≤ 0.8V (Regulator shutdown)
2
µA
4
µA
Reference Voltage
V_IH ≥ 2.25V (Regulator enable)
1
10
30
µA
1.215
1.240
1.265
V
1.202
1.277
V
Adjust Pin Bias Current
40
80
nA
120
nA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Device is ESD sensitive. Handling precautions recommended.
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 2V, dropout voltage
specification does not apply due to a minimum input operating voltage of 3V
7. I_GND is the quiescent current. I_IN = I_GND + I_OUT.
February 2006
3
M9999-021606
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