MIC5249 Datasheet, PDF (3/7 Pages) Micrel Semiconductor – 300MA UCAP LDO WITH PROGRAMMABLE POWER ON RESET DELAY

MIC5249
Absolute Maximum Ratings⁽¹⁾
Supply Input Voltage (V_IN) .................................. 0V to +7V
Power Dissipation (P_D) ........................ Internally Limited⁽³⁾
Junction Temperature .............................. –40°C to +125°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
Storage Temperature (T_S) ......................... –65°C to 150°C
ESD Rating⁽⁴⁾
Micrel
Operating Ratings⁽²⁾
Supply Input Voltage (V_IN) ............................. +2.7V to +6V
Enable Input Voltage (V_EN) .................................. 0V to V_IN
Junction Temperature (T_J) ....................... –40°C to +125°C
Package Thermal Resistance
MSOP-8 (θ_JA ) ................................................... 200°C/W
Electrical Characteristics
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
–1.0
+1.0
%
–3.0
+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
mV
160 225 mV
275 mV
I_OUT = 300mA
340 500 mV
600 mV
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
µA
0.35
1
µA
65
dB
300 440
mA
Enable Input Voltage
Logic low (regulator shutdown)
0.4
V
Logic high (regulator enabled)
1.6
V
Enable Input Current
Delay Input
V_IL < 0.4V (regulator shutdown)
V_IH > 1.6V (regulator enabled)
0.01
µA
0.01
µA
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
0.020 0.1
V
output in fault condition
I_RESET
Flag leakage current, Flag OFF
0.01
µA
Notes:
1. Exceeding maximum rating may damage the device.
2. The device is not guaranteed to work 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, 1.5k in series with 100pF.
March 2004
3
M0382-033004