MIC5249_12 Datasheet, PDF (3/7 Pages) Micrel Semiconductor – 300mA μCap LDO with Programmable Power-On Reset Delay

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) ............................................. 0V to +7V
Enable Voltage (V_EN)............................................ 0V to +7V
Power Dissipation (P_D). .......................... Internally Limited⁽³⁾
Junction Temperature (T_J) ........................–40°C to +125°C
Lead Temperature (soldering, 5sec.)......................... 260°C
Storage Temperature (T_s) .........................–65°C to +150°C
ESD Rating⁽⁴⁾................................................. ESD Sensitive
MIC5249
Operating Ratings⁽²⁾
Supply voltage (V_IN) ........................................ +2.7V to +6V
Enable Voltage (V_EN).............................................. 0V to V_IN
Junction Temperature (T_J) ........................ –40°C to +125°C
Package Thermal Resistance
MSOP (θ_JA)......................................................160°C/W
Electrical Characteristics
V_IN = V_OUT + 1V; C_OUT = 2.2µF, 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
–1.0
–3.0
+1.0
+3.0
%
Line Regulation
Load Regulation
Dropout Voltage
V_IN = V_OUT +1V to 6V
I_OUT = 0.1mA to 300mA
I_OUT = 100µA
I_OUT = 150mA
–0.3 0.02 +0.3
%/V
1.5
3.0
%
1
160
225
275
mV
I_OUT = 300mA
340
500
600
Ground Pin Current
Ground Pin Current in Shutdown
Ripple Rejection
Current Limit
Enable Input
I_OUT = 0mA
I_OUT = 300mA
V_EN < 0.4V (Regulator OFF)
f = 120Hz, C_OUT = 2.2µF
V_OUT = 0V
85
150
µA
100
200
0.35
1
µA
65
dB
300 440
mA
Enable Input Voltage
Enable Input Current
Delay Input
Logic low (regulator shutdown)
Logic high (regulator enabled)
V_IL < 0.4V (regulator shutdown)
V_IH > 1.6V (regulator enabled)
0.4
V
1.6
0.01
µA
0.01
Delay Pin Current Source
0.55
1
µA
Delay Pin Threshold Voltage
Threshold for RESET = Logic high
1.40
V
RESET Output
V_TH
Low threshold, % of V_OUT (Flag ON)
89
91
%
High threshold, % of V_OUT (Flag OFF)
93
96
V_OL
RESET output logic – low voltage; I_RESET = 100µA output
in fault condition
0.020 0.1
V
I_RESET
Flag leakage current, Flag OFF
0.01
µA
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.
March 2012
3
M9999-030812