MIC2169B Просмотр технического описания (PDF) - Micrel
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MIC2169B Datasheet PDF : 25 Pages
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Micrel, Inc.
MIC2169B
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ...................................... -0.3V to 15.5V
Booststrapped Voltage (VBST) .................... -0.3V to VIN +6V
VSW .............................................................. -0.3V to 15.5V
CS ............................................................................15.25V
LSD,FB............................................................... -0.3V to 6V
Storage Temperature (TS)..........................-65°C to +150°C
Peak Reflow Temperature (10 to 20 sec) ................ +260°C
ESD (HBM) (3)................................................................. 2kV
ESD (MM).....................................................................200V
Operating Ratings(2)
Supply Voltage (VIN)...................................... +3V to +14.5V
Ambient Temperature (TA) ...........................-40°C to +85°C
Junction Temperature (TJ) ..........................-40°C to+125°C
Junction Thermal Resistance
ePad MSOP (θJA)............................................76.7°C/W
ePad MSOP (θJC) .............................................9.6°C/W
MSOP (θJA) ......................................................130°C/W
MSOP (θJC).....................................................42.6°C/W
Output Voltage Range............................. 0.8V to VIN × DMAX
Electrical Characteristics(4)
TJ = 25°C, VIN = 5V; Bold values indicate –40°C ≤ TJ ≤ +125°C; unless otherwise specified.
Parameter
Condition
Min
Feedback Voltage Reference (±1%)
0.792
Feedback Voltage Reference (±2% over temp)
0.784
Feedback Bias Current
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Output Voltage Total
Regulation
3V ≤ VIN ≤ 14.5V; 1A ≤ IOUT ≤ 10A; (VOUT = 2.5V)(4)
Typ
0.8
0.8
150
0.03
0.5
0.6
Max
0.808
0.816
350
1.5
Units
V
V
nA
%/V
%
%
Oscillator Section
Oscillator Frequency
450 500 550 kHz
Maximum Duty Cycle
Minimum On-Time(5)
92
%
30
60
ns
Input and VDD Supply
PWM Mode Supply Current
VCS = VIN –0.25V; VFB = 0.7V (output switching but
excluding external MOSFET gate current.)
1.5
3
mA
Shutdown Quiescent Current VCOMP/EN = 0V
50 150 µA
VCOMP Shutdown Threshold
VCOMP Shutdown Blanking
Period
CCOMP = 100nF
0.1 0.25 0.35
V
675
μs
Digital Supply Voltage (VDD)
VIN ≥ 6V
4.7
5
5.3
V
April 2010
4
M9999-041210-B
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