MIC5318 Datasheet, PDF (5/11 Pages) Micrel Semiconductor – High Performance 300mA uCap ULDO TM

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ..................................0V to +6.5V
Enable Input Voltage (V_EN)........................0V to +6.5V
Power Dissipation, Internally Limited⁽³⁾
Lead Temperature (soldering, 3sec) ..................260°C
Junction Temperature (T_J)................ –40°C to +125°C
Storage Temperature (T_S) ................ –65°C to +150°C
ESD Rating⁽⁴⁾
MIC5318
Operating Ratings⁽²⁾
Supply Voltage (V_IN).............................. +2.3V to +6.0V
Enable Input Voltage (V_EN).............................. 0V to V_IN
Junction Temperature (T_J) ................. –40°C to +125°C
Junction Thermal Resistance
Thin MLF-6 (θ_JA)...................................... 100°C/W
TSOT-23-5 (θ_JA) ...................................... 235°C/W
Electrical Characteristics⁽⁵⁾
V_IN = V_OUT + 1.0V; C_OUT = 1.0µF; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Conditions
Min Typ Max Units
Output Voltage Accuracy
Variation from nominal V_OUT
Variation from nominal V_OUT; –40°C to +125°C
-2.0
+2.0 %
-3.0
+3.0 %
Line Regulation
Load Regulation, Note 6
Dropout Voltage, Note 7
Ground Pin Current, Note 8
Ground Pin Current in
Shutdown
V_IN = V_OUT + 1V to 6.0V; I_OUT = 100µA
I_OUT = 100µA to 300mA
I_OUT = 50mA; V_OUT ≥ 2.8V
I_OUT = 150mA; V_OUT ≥ 2.8V
I_OUT = 300mA; V_OUT ≥ 2.8V
I_OUT = 0 to 300mA
V_EN ≤ 0.2V
0.02 0.6 %/V
0.2 2.0
%
17
mV
50 100 mV
110 200 mV
85 150 µA
0.01 1
µA
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input
f = up to 1kHz; C_OUT = 1.0µF; C_BYP = 0.1µF
f = 1kHz – 20kHz; C_OUT = 1.0µF; C_BYP = 0.1µF
V_OUT = 0V
C_OUT = 1.0µF; C_BYP = 0.1µF; 10Hz to 100kHz
75
dB
55
dB
340 500 900 mA
30
µV_RMS
Enable Input Voltage
Logic Low
0.2
V
Logic High
1
V
Enable Input Current
Turn-on Time
V_IL ≤ 0.2V
V_IH ≥ 1.0V
0.01 1
µA
0.01 1
µA
Turn-on Time
C_OUT = 1.0µF; C_BYP = 0.1µF; I_OUT = 150mA
30 100
µs
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. Devices are ESD sensitive. Handling precautions recommended. Human body model.
5. Specification for packaged product only.
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, 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 2.3V, dropout voltage is the input-to-output differential with the minimum input voltage 2.3V.
8. Ground pin current is the regulation quiescent current. The total current drawn from the supply is the sum of the load current plus the ground
pin current.
January 2007
5
M9999-011207