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MIC2168ABMM датащи(PDF) 3 Page - Micrel Semiconductor

номер детали MIC2168ABMM
подробное описание детали  1MHz PWM Synchronous Buck Control IC
PDF  14 Pages
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производитель  MICREL [Micrel Semiconductor]
домашняя страница  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2168ABMM датащи(HTML) 3 Page - Micrel Semiconductor

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April 2005
3
M9999-062205
MIC2168A
Micrel, Inc.
Absolute Maximum Ratings(1)
Supply Voltage (VIN)...................................................15.5V
Booststrapped Voltage (VBST).................................VIN +5V
Junction Temperature (TJ)...................–40°C ≤ TJ ≤+125°C
Storage Temperature (TS) ........................ –65°C to +150°C
Operating Ratings(2)
Supply Voltage (VIN)..................................... +3V to +14.5V
Output Voltage Range ..........................0.8V to VIN × DMAX
Package Thermal Resistance
θJA 10-lead MSOP
JA
JA
.............................................180°C/W
Electrical Characteristics(3)
TJ = 25°C, VIN = 5V, unless otherwise specified. Bold values indicate –40°C < TJ < +125°C
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
Feedback Voltage Reference
(± 2% over temp)
0.784
0.8
0.816
V
Feedback Bias Current
30
100
nA
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
Output Voltage Total Regulation
3V ≤ VIN ≤ 14.5V; 1A ≤ IOUT ≤ 10A; (VOUT = 2.5V)(4)
(4)
0.6
%
Oscillator Section
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
Minimum On-Time(4)
(4)
30
60
ns
Input and VDD Supply
PWM Mode Supply Current
VCS = VIN –0.25V; VFB = 0.7V (output switching but excluding
1.6
3
mA
external MOSFET gate current.)
Shutdown Quiescent Current
VCOMP/EN = 0V
50
150
µ
A
VCOMP Shutdown Threshold
0.1
0.25
0.4
V
VCOMP Shutdown Blanking
CCOMP = 100nF
4
ms
Period
Digital Supply Voltage (VDD)
VIN ≥ 6V
4.7
5
5.3
V
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
Feedback Voltage Reference
(± 2% over temp)
Feedback Bias Current
30
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
Output Voltage Total Regulation
3V ≤ V
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
Feedback Bias Current
30
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
0.6
%
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
0.8
Feedback Bias Current
30
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
0.6
%
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
0.6
%
Parameter
Condition
Min
Typ
Max
Units
Feedback Voltage Reference
(± 1%)
0.792
0.8
0.808
V
V
nA
Output Voltage Line Regulation
0.03
% / V
Output Voltage Load Regulation
0.5
%
0.6
%
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
, and the ambient temperature, T
, and the ambient temperature, T . The maximum allowable power dissipation will result in excessive
die temperature, and the regulator will go into thermal shutdown.
2. Devices are ESD sensitive, handling precautions required.
3. Specification for packaged product only.
4. Guaranteed by design.
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
30
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
30
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
30
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
Oscillator Frequency
900
1000
1100
kHz
Maximum Duty Cycle
90
%
ns
PWM Mode Supply Current
V
external MOSFET gate current.)
Shutdown Quiescent Current
V
Shutdown Threshold
0.1
0.25
0.4
V
Shutdown Blanking
C
)
V
= 0.7V (output switching but excluding
1.6
= 0V
50
Shutdown Threshold
0.1
0.25
0.4
V
= 100nF
4
ms
≥ 6V
4.7
5
5.3
V
= 0.7V (output switching but excluding
1.6
= 0V
50
Shutdown Threshold
0.1
0.25
0.4
V
= 100nF
4
ms
≥ 6V
4.7
5
5.3
V
Shutdown Threshold
0.1
0.25
0.4
V
= 100nF
4
ms
≥ 6V
4.7
5
5.3
V
mA
Shutdown Threshold
0.1
0.25
0.4
V
= 100nF
4
ms
≥ 6V
4.7
5
5.3
V



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