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SC284PEVB датащи(PDF) 5 Page - Semtech Corporation

номер детали SC284PEVB
подробное описание детали  Dual Channel 2.5MHz, 2.0A Synchronous Buck with Automatic Power Save
PDF  22 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC284PEVB датащи(HTML) 5 Page - Semtech Corporation

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5
SC284P
Typical Characteristics
Efficiency vs. Load Current
Total Loss (Per Channel) vs. Load Current
UVLO Rising Threshold
Circuit Conditions: C
IN= 0uF/6.3V; COUT= 22uF/6.3V, Unless otherwise noted, L= 2.2uH (TOKO: 27AS-2R2M).
UVLO Hysteresis
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Load Current (A)
VIN = 5V, VOUT = 3.3V
VIN = 5V, VOUT = 1.5V
VIN = 3.3V, VOUT = 1.5V
1000
800
Vin=3.3V,Vo=1.5V
600
400
Vin=5V,Vo=3.3V
200
Vin=5V,Vo=1.5V
0
0
0.5
1.0
1.5
2.0
Load Current (A)
TA=25
℃
2.60
2.62
2.64
2.66
2.68
2.70
-50
-25
0
25
50
75
100
125
150
Ambient Temperature (0C)
170
175
180
185
190
195
200
-50
-25
0
25
50
75
100
125
150
Ambient Temperature (0C)
Steady State (PSAVE) Operation (I
OUT=200mA)
Steady State (PWM) Operation (I
OUT=2A)
I
OUT
200mA/div
500ns/div
V
IN = 5V
V
OUT = .5V
I
LX
500mA/div
500ns/div
V
IN = 5V
V
LX
2V/div
V
OUT = .5V
I
OUT
2A/div
I
LX
A/div
V
LX
2V/div



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