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MIC2172YN Scheda tecnica(PDF) 6 Page - Micrel Semiconductor

Il numero della parte MIC2172YN
Spiegazioni elettronici  100kHz 1.25A Switching Regulators
PDF  20 Pages
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Produttore elettronici  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2172YN Scheda tecnica(HTML) 6 Page - Micrel Semiconductor

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Micrel
MIC2172/3172
April 2006
6
M9999-041806
(408) 955-1690
Typical Characteristics MIC3172 (cont)
Parameter
Condition
Min
Typ
Max
Units
Oscillator Section
Frequency (fO)
88
85
100
112
115
kHz
kHz
Duty Cycle [
δ(max)]
80
89
95
%
Sync Coupling Capacitor
Required for Frequency
Lock
VPP = 3.0V
VPP = 40V
22
2.2
51
4.7
120
10
pF
pF
Input Supply Voltage Section and Enable Section
Minimum Operating
Voltage
2.7
3.0
V
Quiescent Current (IQ)
3V
≤ VIN ≤ 40V, VCOMP = 0.6V, ISW = 0
7
9
mA
Supply Current Increase
(
∆IIN)
∆ISW = 1A, VCOMP = 1.5V
9
20
mA
Enable Input Threshold
0.4
1.2
2.4
V
Enable Input Current
VEN = 0V
VEN = 2.4V
–1
0
2
1
10
µA
µA
Bold type denotes specifications applicable to the full operating temperature range.
Note 1. Devices are ESD sensitive. Handling precautions required.
Note 2. For duty cycles (
δ) between 50% and 95%, minimum guaranteed switch current is given by ICL = 0.833 (2- δ) for the MIC3172.
Note 3. Specification for packaged product only.



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