MIC5303 Datasheet, PDF (4/8 Pages) Micrel Semiconductor – Single 300mA CMOS Ultra Small ULDO

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ............................................. 0V to +6V
Enable Input (V_EN) ................................................ 0V to +6V
Power Dissipation⁽³⁾...................................Internally Limited
Lead Temperature (soldering, 5 sec.)........................ 260°C
Junction Temperature (T_J) ........................–40°C to +125°C
Storage Temperature (T_s) .........................–65°C to +150°C
MIC5303
Operating Ratings⁽²⁾
Supply voltage (V_IN) ..................................... +2.3V to +5.5V
Enable Input (V_EN) .................................................. 0V to V_IN
Junction Temperature (T_A) ........................ –40°C to +125°C
Junction Thermal Resistance
Thin MLF^® -4 (θ_JA) ...........................................173°C/W
Electrical Characteristics⁽⁴⁾
V_IN = V_OUT + 1V; C_OUT = 1.0µF; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Condition
Min Typ Max Units
Output Voltage Accuracy
Line Regulation
Variation from nominal V_OUT
Variation from nominal V_OUT; –40°C to +125°C
V_IN = V_OUT +1V to 5.5V; I_OUT = 100µA
Load Regulation⁽⁵⁾
Dropout Voltage⁽⁶⁾
Ground Pin Current⁽⁷⁾
Ground Pin Current in
Shutdown
I_OUT = 100µA to 150mA
I_OUT = 100µA
I_OUT = 50mA
I_OUT = 150mA
I_OUT = 300mA
I_OUT = 0 to 300mA, EN = High
V_EN = 0V
–2
+2
%
–3
+3
%
0.02
0.3
%/V
0.6
0.5
2.0
%
0.1
mV
15
35
mV
50
100
mV
100
200
mV
85
120
µA
0.1
2
µA
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input
f = up to 1kHz; C_OUT = 1.0µF
f = 1kHz – 20kHz; C_OUT = 1.0µF
V_OUT = 0V
C_OUT =1µF, 10Hz to 100kHz
65
42
350 460
120
dB
dB
850
mA
µV_RMS
Enable Input Voltage
Logic Low
0.2
V
Logic High
1.1
V
Enable Input Current
Turn-on Time
V_IL < 0.2V
V_IH > 1.0V
C_OUT = 1.0µF
0.01
µA
0.01
µA
35
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. Specification for packaged product only.
5. 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.
6. 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.
7. 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.
October 2006
4
M9999-102506-B