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MIC2619 Datasheet, PDF (3/15 Pages) Micrel Semiconductor – 1.2MHz PWM Boost Converter with OVP
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Micrel, Inc.
Absolute Maximum Ratings(1)
Supply Voltage (VIN) .........................................................7V
Switch Voltage (VSW)....................................... –0.3V to 40V
Enable Pin Voltage (VEN)..................................... –0.3 to VIN
Feedback Voltage (VFB), (VOVP)........................................6V
Ambient Storage Temperature (TS)...........–65°C to +150°C
ESD Rating (3) ................................................................. 2kV
MIC2619
Operating Ratings(2)
Supply Voltage (VIN)......................................... 2.8V to 6.5V
Output Voltage (VOUT) .......................................... VIN to 35V
Junction Temperature Range (TJ)............. –40°C to +125°C
Package Thermal Impedance
Thin SOT-23-6 (θJA).........................................177°C/W
Electrical Characteristics (4)
TA = 25°C, VIN = VEN = 3.6V, VOUT = 10V, IOUT = 10mA, unless otherwise noted. Bold values indicate –40°C ≤ TJ ≤125°C.
Parameter
Condition
Min
Typ
Max
Supply Voltage Range
2.8
6.5
Under Voltage Lockout
1.8
2.1
2.4
Quiescent Current
VFB > 1.265V, (not switching)
2.1
5
Shutdown Current
Feedback Voltage
VEN = 0V
1.227
0.04
1.265
1
1.303
Feedback Input Current
VFB = 1.265V
-450
Line Regulation
Load Regulation
2.8V ≤ VIN ≤ 6.5V
5mA ≤ IOUT ≤ 20mA
0.2
1
0.3
Maximum Duty Cycle
Switch Current Limit
Switch Saturation Voltage
VIN = 3.6V(5)
VIN = 3.6V, ISW = 300mA
85
90
350
400
Switch Leakage Current
Enable Threshold
VEN = 0V, VSW = 10V
TURN ON
0.01
1
1.5
TURN OFF
0.4
Units
V
V
mA
µA
V
nA
%
%
%
mA
mV
µA
V
Enable Pin Current
Oscillator Frequency
VEN = 6.5V
14
40
µA
1.2
MHz
Overvoltage Protection
1.202 1.265 1.328
V
OVP Input Current
Overtemperature Threshold
Shutdown
VOVP = 1.265V
Hysteresis
–200
nA
150
°C
10
°C
Notes:
1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating
the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max),
the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation will result in excessive
die temperature, and the regulator will go into thermal shutdown.
2. This device is not guaranteed to operate beyond its specified operating ratings.
3. Devices are inherently ESD sensitive. Handling precautions required. Human body model: 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. Guaranteed by design.
March 2010
3
M9999-030410-A
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