MIC5337 Datasheet, PDF (3/11 Pages) Micrel Semiconductor – 1.2mm x 1.6mm 300mA Low IQ LDO Ultra Low Dropout with Auto Discharge

Micrel, Inc.
MIC5337
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ........................................ –0.3V to +6V
Enable Voltage (V_EN)......................................... –0.3V to V_IN
Power Dissipation (P_D) ........................... Internally Limited⁽³⁾
Lead Temperature (soldering, 5μsec.)....................... 260°C
Junction Temperature(T_J )………… ...........-40°C to +125°C
Storage Temperature (T_s) .........................–65°C to +150°C
ESD Rating⁽⁴⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN)....................................... +2.3V to 5.5V
Enable Voltage (V_EN).............................................. 0V to V_IN
Junction Temperature (T_J) ........................ –40°C to +125°C
Junction Thermal Resistance
1.2mm x 1.6mm Thin MLF-4 (θ_JA) ............................173°C/W
Electrical Characteristics⁽⁵⁾
V_IN = V_EN = V_OUT + 1V; C_OUT = 1µF; 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
Variation from nominal V_OUT
–1.5
+1.5
%
Variation from nominal V_OUT
–2.0
+2.0
%
Line Regulation
V_IN = V_OUT +1V to 5.5V, I_OUT = 100µA
0.01
0.3
%/V
Load Regulation⁽⁶⁾
Dropout Voltage⁽⁷⁾
Ground Pin Current⁽⁸⁾
V_IN = V_OUT +1V to 5.5V, I_OUT = 100µA
I_OUT = 100µA to 300mA
I_OUT = 50mA
I_OUT = 100mA
I_OUT = 150mA
I_OUT = 300mA
I_OUT = 100µA to 300mA
0.5
%/V
0.05
1
%
30
mV
60
mV
90
150
mV
180
300
mV
24
35
µA
Ground Pin Current in Shutdown V_EN = 0V
0.01
1
µA
Ripple Rejection
f = 1kHz; C_OUT = 1µF; I_OUT = 300mA
f = 20kHz; C_OUT = 1µF; I_OUT = 300mA
65
dB
50
dB
Current Limit
V_OUT = 0V
400 600
950
mA
Output Voltage Noise
C_OUT = 1µF, 10Hz to 100kHz
90
µV_RMS
Auto-Discharge NFET
Resistance
V_EN=0V, V_IN=3.6V
280
400
Ω
Enable Voltage
Enable Voltage
Logic Low
0.2
V
Logic High
1.2
V
Enable Current
V_IL ≤ 0.2V
0.01
1
µA
Turn-on Time
V_IH ≥ 1.2V
C_OUT = 1µF; I_OUT = 300mA
0.01
1
µA
150
500
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, 1.5kΩ in series with 100pF.
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 V_OUT.
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.
September 2008
3
M9999-090908-A