MIC5253_04 Datasheet, PDF (3/9 Pages) Micrel Semiconductor – 100mA Low Noise μCap Teeny™ LDO

MIC5253
Micrel
Absolute Maximum Ratings⁽¹⁾
Operating Ratings⁽²⁾
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 Rating⁽⁴⁾ ................................................................................ 2kV
Electrical Characteristics⁽⁵⁾
Input Voltage (V_IN) ...................................... +2.7V to +5.5V
Enable Input Voltage (V_EN) .................................. 0V to V_IN
Junction Temperature (T_J) ....................... –40°C to +125°C
Thermal Resistance
SC-70-5 (θ_JA) .................................................... 400°C/W
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 otherwise noted.
Symbol
Parameter
Conditions
Min Typical Max
Units
V_O
Output Voltage Accuracy
I_OUT = 100µA
–1.5
1.5
%
–3
3
%
∆V_LNR
∆V_LDR
V_IN – V_OUT
Line Regulation
Load Regulation
Dropout Voltage⁽⁷⁾
I_Q
I_GND
Quiescent Current
Ground Pin Current⁽⁸⁾
PSRR
Ripple Rejection
t_ON
Turn-On Time
I_LIM
Current Limit
e_n
Output Voltage Noise
V_IN = V_OUT + 1V to 6V
I_OUT = 0.1mA to 100mA, Note 6
I_OUT = 50mA
I_OUT = 100mA
V_EN ≤ 0.4V (shutdown)
I_OUT = 0mA
I_OUT = 100mA
f = 100Hz, C_OUT = 1.0µF, C_BYP = 0.1µF
f = 1kHz, V_IN = V_OUT +1, C_BYP = 0.1µF
f = 10kHz, V_IN = V_OUT +1, C_BYP = 0.1µF
V_OUT = 0V
C_OUT = 1.0µF, C_BYP = 0.01µF,
f = 10Hz to 100kHz
0.035 0.05 %/V
1.5
2.5
%
80
150
mV
165 300 mV
0.2
1
µA
75
100
µA
90
150
µA
66
dB
70
dB
65
dB
30
150
µs
150 250 450 mA
30
µV(rms)
Enable Input
V_IL
Enable Input Logic-Low Voltage
V_IH
Enable Input Logic-High Voltage
I_EN
Enable Input Current
Thermal Protection
V_IN = 2.7V to 5.5V, regulator shutdown
V_IN = 2.7V to 5.5V, regulator enabled
V_IL ≤ 0.4V, regulator shutdown
V_IH ≥ 1.6V, regulator enabled
0.4
V
1.6
V
0.01
µA
0.01
µA
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Hysteresis
10
°C
Notes:
1. Exceeding the absolute maximum ratings may damage the device.
2. The device is not guaranteed to function outside its operating ratings.
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 MIC5253-x.xBC5 (all versions) is
400°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 100mA. 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 differential.
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 current.
November 2005
3
M9999-112305