MIC2169B(2009) 查看數據表（PDF） - Micrel
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MIC2169B Datasheet PDF : 24 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
FB ..................................................................... -0.3V to 6V
Junction Temperature (TJ) .................. -40°C ≤ TJ ≤ +125°C
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 +125°C
Junction Thermal Resistance
ePad MSOP (θJA)............................................76.7°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)
Oscillator Section
Oscillator Frequency
450
Maximum Duty Cycle
92
Minimum On-Time(5)
Input and VDD Supply
PWM Mode Supply Current
VCS = VIN –0.25V; VFB = 0.7V (output switching but
excluding external MOSFET gate current.)
Shutdown Quiescent Current VCOMP/EN = 0V
VCOMP Shutdown Threshold
0.1
VCOMP Shutdown Blanking
Period
CCOMP = 100nF
Digital Supply Voltage (VDD)
VIN ≥ 6V
4.7
Error Amplifier
DC Gain(5)
Transconductance
Typ
0.8
0.8
150
0.03
0.5
0.6
500
30
1.5
50
0.25
675
5
70
1.1
Max
0.808
0.816
350
1.5
550
60
3
150
0.35
5.3
Units
V
V
nA
%/V
%
%
kHz
%
ns
mA
µA
V
μs
V
dB
mΩ–1
June 2009
4
M9999- 060309-A
(408) 944-0800
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