MIC5258_06 Datasheet, PDF (3/9 Pages) Micrel Semiconductor – 150mA μCap CMOS LDO Regulator w/Power Good

MIC5258
Absolute Maximum Ratings (Note 1)
Supply Input Voltage (V_IN) ....................................0V to +7V
Enable Input Voltage (V_EN) ...................................0V to V_IN
Flag Output Voltage (V_PG).....................................0V to V_IN
Junction Temperature (T_J) ....................................... +150°C
Storage Temperature................................ –65°C to +150°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
ESD, Note 3
Micrel, Inc.
Operating Ratings (Note 2)
Input Voltage (V_IN).......................................... +2.7V to +6V
Enable Input Voltage (V_EN) ...................................0V to V_IN
Flag Output Voltage (V_PG).....................................0V to V_IN
Junction Temperature (T_J) ........................ –40°C to +125°C
Thermal Resistance
SOT-23(θ_JA)....................................................... 235°C/W
Electrical Characteristics
V_IN = 2.7V, V_EN = V_IN; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typical Max
Units
V_O
Output Voltage Accuracy
I_OUT = 100µA
–3
3
%
–4
4
%
ΔV_LNR
ΔV_LDR
I_Q
I_GND
Line Regulation
Load Regulation
Quiescent Current
Ground Pin Current, Note 5
PSRR
Power Supply Rejection
I_LIM
Current Limit
Enable Input
V_IN = 2.7V to 6V
I_OUT = 0.1mA to 150mA, Note 4
V_EN ≤ 0.4V (shutdown) PG = NC
I_OUT = 0mA; V_IN = 6.0V
I_OUT = 150mA; V_IN = 6.0V
f = 120Hz, C_OUT = 4.7µF, I_OUT = 150mA
V_OUT = 0V
–0.3
0.3 %/V
3.5
4
%
0.45
1
µA
110
150
µA
110
150
µA
tbd
dB
160 350
mA
V_IL
Enable Input Logic-Low Voltage
V_IH
Enable Input Logic-High Voltage
I_EN
Enable Input Current
Thermal Protection
V_IN = 5.5V, regulator shutdown
V_IN = 5.5V, regulator enabled
V_IL ≤ 0.4V; V_IN = 5.5V
V_IH ≥ 1.6V; V_IN = 5.5V
0.4
V
1.6
V
0.01
µA
0.01
µA
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Hysteresis
10
°C
Power Good , Note 6
V_PG
V_OL
I_PG
V_PG Delay
Low Threshold
High Threshold
PG Output Logic-Low Voltage
Power Good Leakage Current
Delay time to Power Good
% of V_OUT (PG ON)
% of V_OUT (PG OFF)
I_L = 100µA, fault condition
power good off, V_PG = 5.5V
See Timing Diagram
89
%
97
%
0.02 0.1
V
0.01
µA
1
5
ms
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Devices are ESD sensitive. Handling precautions recommended.
Note 4.
Note 5.
Note 6.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load
range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
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.
The power good is a function of the output voltage being 5% low and the detection of one of the following: overcurrent, overtemperature or
dropout. See “Applications Information” section for additional information.
April 2006
3
MIC5258