MIC5252_04 Datasheet, PDF (3/9 Pages) Micrel Semiconductor – 150mA High PSRR, Low Noise μCap CMOS LDO

MIC5252
Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Input Voltage (V_IN) ....................................0V to +7V
Enable Input Voltage (V_EN) ..................................0V to +7V
Power Dissipation (P_D)..........................Internally Limited⁽³⁾
Junction Temperature (T_J) ........................ –40°C to +125°C
Storage Temperature................................ –65°C to +150°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
ESD⁽⁴⁾............................................................................ 2kV
Operating Ratings⁽²⁾
Input Voltage (V_IN).......................................... +2.7V to +6V
Enable Input Voltage (V_EN) ...................................0V to V_IN
Junction Temperature (T_J) ........................ –40°C to +125°C
Thermal Resistance
SOT-23 (θ_JA)......................................................235°C/W
2x2 MLF™ (θ_JA) ..................................................90°C/W
Electrical Characteristics⁽⁵⁾
V_IN = V_OUT + 1V, V_EN = V_IN; 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_O
Output Voltage Accuracy
I_OUT = 100µA
–1
1
%
–3
3
%
ΔV_LNR
ΔV_LDR
V_IN – V_OUT
Line Regulation
Load Regulation
Dropout Voltage⁽⁷⁾
V_IN = V_OUT + 1V to 6V
I_OUT = 0.1mA to 150mA⁽⁶⁾
I_OUT = 100µA
I_OUT = 100mA
I_OUT = 150mA
0.02 0.2
%
0.6
1.5
%
0.1
5
mV
90
150
mV
135 200 mV
250 mV
I_Q
I_GND
PSRR
I_LIM
e_n
µV(rms)
Quiescent Current
Ground Pin Current⁽⁸⁾
Ripple Rejection; I_OUT = 150mA
Current Limit
Output Voltage Noise
V_EN ≤ 0.4V (shutdown)
I_OUT = 0mA
I_OUT = 150mA
f = 10Hz, C_OUT = 1.0µF, C_BYP = 0.01µF
f = 10Hz, V_IN = V_OUT + 0.3V
f = 10kHz, V_IN = V_OUT + 0.3V
V_OUT = 0V
C_OUT = 1.0µF, C_BYP = 0.01µF,
f = 10Hz to 100kHz
0.2
1
µA
90
150
µA
117
200
µA
63
dB
48
dB
48
dB
250 425
mA
30
Enable Input
V_IL
Enable Input Logic-Low Voltage
V_IN = 2.7V to 5.5V, regulator shutdown
0.4
V
V_IH
Enable Input Logic-High Voltage
V_IN = 2.7V to 5.5V, regulator enabled
1.6
V
I_EN
Enable Input Current
V_IL ≤ 0.4V, regulator shutdown
0.01
1
µA
V_IH ≥ 1.6V, regulator enabled
0.01
1
µA
Shutdown Resistance Discharge
500
Ω
Thermal Protection
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Hysteresis
10
°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. 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. The θ_JA of the MIC5252-x.xBM5 (all ver-
sions) is 235°C/W on a PC board. See ”Thermal Considerations” section for further details.
4. Devices are ESD sensitive. Handling precautions recommended.
5. Specification for packaged product only.
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range
from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
7. Dropout Voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differen-
tial. For outputs below 2.7V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.7V. Minimum input operating
voltage is 2.7V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin cur-
rent.
February 2005
3
M9999-020305