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MIC5255_06 Datasheet, PDF (4/13 Pages) Micrel Semiconductor – 150mA Low Noise Cap CMOS LDO
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Micrel, Inc.
MIC5255
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ............................................. 0V to +7V
Enable Voltage (VEN)............................................ 0V to +7V
Power Dissipation (PD) ........................... Internally Limited(3)
Junction Temperature (TJ) ........................–40°C to +125°C
Storage Temperature (Ts) .........................–60°C to +150°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
EDS Rating(4).................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN)........................................ +2.7V to +6V
Enable Voltage (VEN).............................................. 0V to VIN
Junction Temperature (TJ) ........................ –40°C to +125°C
Thermal Resistance
SOT23-5 (θJA) ..................................................235°C/W
2x2 MLF-6 (θJA) .................................................90°C/W
Electrical Characteristics(5)
VIN = VOUT + 1V, VEN = VIN; IOUT = 100µA; 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
VIN – VOUT
Line Regulation
Load Regulation
Dropout Voltage(7)
VIN = VOUT + 1V to 6V
IOUT = 0.1mA to 150mA(6)
IOUT = 100µA
IOUT = 100mA
0.02 0.05
1.5
2.5
0.1
5
90
150
IOUT = 150mA
135
200
250
IQ
Quiescent Current
IGND
Ground Pin Current(8)
VEN ≤ 0.4V (shutdown)
IOUT = 0mA
0.2
1
90
150
IOUT = 150mA
117
PSRR
Ripple Rejection
f = 10Hz, COUT = 1.0µF, CBYP = 0.01µF
60
f = 100Hz, VIN = VOUT +1
60
f = 10kHz, VIN = VOUT +1
50
ILIM
Current Limit
en
Output Voltage Noise
VOUT = 0V
COUT = 1.0µF, CBYP = 0.01µF,
f = 10Hz to 100kHz
160 425
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
VIH ≥ 1.6V, regulator enabled
0.01
0.01
Shutdown Resistance Discharge
500
Thermal Protection
Thermal Shutdown Temperature
150
Thermal Shutdown Hysteresis
10
Units
%
%
%/V
%
mV
mV
mV
mV
µA
µA
µA
dB
dB
dB
mV
µV(rms)
V
V
µA
µA
Ω
°C
°C
November 2006
4
M9999-110906
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