MIC5254 查看數據表（PDF） - Micrel
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MIC5254 Datasheet PDF : 11 Pages
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Micrel, Inc.
MIC5254
Absolute Maximum Ratings(1)
Supply Input Voltage (VIN).................................... 0V to +7V
Enable Input Voltage (VEN)................................... 0V to +7V
Power Dissipation (PD) ................... Internal Limited, Note 3
Junction Temperature (TJ) ........................–40°C to +125°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating(4).................................................................. 2kV
Operating Ratings(2)
Supply Input Voltage (VIN)............................... +2.7V to +6V
Enable Input Voltage (VEN)..................................... 0V to VIN
Junction Temperature (TJ) ........................ –40°C to +125°C
Thermal Resistance
MSOP-10 (θJA) .................................................200°C/W
Electrical Characteristics(5)
VIN = VOUT + 1V; VEN = VIN; IOUT = 100µ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Symbol Parameter
Condition
Min Typ Max
VO
Output Voltage Accuracy
IOUT = 100µA
–1
+1
–2
+2
∆VLNR
∆VLDR
Line Regulation
Load Regulation
VIN = VOUT + 1V to 6V
IOUT = 0.1mA to 150mA, Note 6
0.02 0.075
1.5
2.5
VIN – VOUT Dropout Voltage, Note 7
IOUT = 100µA
0.1
IOUT = 100mA
90
150
IOUT = 150mA
135
200
250
IQ
Quiescent Current
VEN ≤ 0.4V (shutdown)
IGND
Ground Pin Current, Note 8
IOUT = 0mA
0.2
1
90
150
IOUT = 150mA
117
PSRR
Power Supply Rejection
f = 10Hz, VIN = VOUT + 1V; COUT = 1µF
60
f = 100Hz, VIN = VOUT + 0.5V; COUT = 1µF
60
f = 10kHz, VIN = VOUT + 0.5V
45
ILIM
Current Limit
VOUT = 0V
160 425
en
Output Voltage Noise
30
Enable Input
VIL
Enable Input Logic-Low Voltage VIN = 2.7V to 5.5V, regulator shutdown
0.4
VIH
Enable Input Logic-High Voltage VIN = 2.7V to 5.5V, regulator enabled
1.6
IEN
Enable Input Current
VIL ≤ 0.4V, regulator shutdown
0.01
VIH ≥ 1.6V, regulator enabled
0.01
Shutdown Resistance Discharge
500
Error Flag
VFLG
VOL
Low Threshold
High Threshold
Output Logic-Low Voltage
% of VOUT (Flag ON)
% of VOUT (Flag OFF)
IL = 100µA, fault condition
90
96
0.02
0.1
IFL
Flag Leakage Current
Thermal Protection
Flag OFF, VFLG = 6V
0.01
Thermal Shutdown Temperature
150
Thermal Shutdown Hysteresis
10
Units
%
%
%/V
%
mV
mV
mV
mV
µA
µA
µA
dB
dB
dB
mA
µVRMS
V
V
µA
µA
Ω
%
%
V
µA
°C
°C
December 2007
3
M9999-121107
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