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MIC2168ABMM Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC2168ABMM
Description  1MHz PWM Synchronous Buck Control IC
PDF  14 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2168ABMM Datasheet(HTML) 4 Page - Micrel Semiconductor

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MIC2168A
Micrel, Inc.
M9999-062205
4
April 2005
Parameter
Condition
Min
Typ
Max
Units
Error Amplifier
DC Gain
70
dB
Transconductance
1
ms
Soft-Start
Soft-Start Current
After timeout of internal timer. See “Soft-Start” section.
8.5
µ
A
Current Sense
CS Over Current Trip Point
VCS = VIN –0.25V
160
200
240
µ
A
Temperature Coefficient
+1800
ppm/°C
Output Fault Correction Thresholds
Upper Threshold, VFB_OVT
(relative to VFB)
+3
%
Lower Threshold, VFB_UVT
(relative to VFB)
–3
%
Gate Drivers
Rise/Fall Time
Into 3000pF at VIN > 5V
30
ns
Output Driver Impedance
Source, VIN = 5V
6
Ω
Sink, VIN = 5V
6
Ω
Source, VIN = 3V
10
Ω
Sink, VIN = 3V
10
Ω
Driver Non-Overlap Time
Note 6
10
20
ns
Notes:
5. Specification for packaged product only.
6. Guaranteed by design.
Parameter
Condition
Min
Typ
Max
Units
Parameter
Condition
Min
Typ
Max
Units
Parameter
Condition
Min
Typ
Max
Units
Parameter
Condition
Min
Typ
Max
Units
Parameter
Condition
Min
Typ
Max
Units
DC Gain
70
dB
Transconductance
1
ms
DC Gain
70
dB
Transconductance
1
ms
DC Gain
70
dB
Transconductance
1
ms
DC Gain
70
dB
Transconductance
1
ms
DC Gain
70
dB
Transconductance
1
ms
Soft-Start Current
After timeout of internal timer. See
section.
8.5
section.
8.5
section.
8.5
CS Over Current Trip Point
V
Temperature Coefficient
–0.25V
160
200
240
–0.25V
160
200
240
–0.25V
160
200
240
+1800
ppm/°C
+1800
ppm/°C
Rise/Fall Time
Into 3000pF at V
Output Driver Impedance
Source, V
Sink, V
Source, V
Sink, V
> 5V
30
ns
= 5V
6
= 5V
6
= 3V
10
= 3V
10
10
20
ns
> 5V
30
ns
= 5V
6
= 5V
6
= 3V
10
= 3V
10
10
20
ns
> 5V
30
ns
= 5V
6
= 5V
6
= 3V
10
= 3V
10
10
20
ns
> 5V
30
ns
10
20
ns
(relative to V
(relative to V
)
+3
%
)
–3
%
)
+3
%
)
–3
%
)
+3
%
)
–3
%
)
+3
%
)
–3
%
Electrical Characteristics(5)



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