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SC4905AIMSTRT Datasheet(PDF) 17 Page - Semtech Corporation

Part # SC4905AIMSTRT
Description  High Performance Voltage Mode PWM Controller
PDF  24 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4905AIMSTRT Datasheet(HTML) 17 Page - Semtech Corporation

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SC4905A/B
POWER MANAGEMENT
 2006 Semtech Corp.
www.semtech.com
17
0
10
20
30
40
50
60
70
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Current limit Input current
199
200
201
202
203
204
205
206
207
208
209
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Current limit rising
Iq (start up) vs. Temperature
Idd (operating) vs. Temperature
Reference vs. Temperature
Current Limit vs. Temperature
Current Limit bias current vs. Temperature
Vdd UVLO vs. Temperature
SC4905B Typical Characteristics
70
71
72
73
74
75
76
77
78
79
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Start up Iq, Vdd = 3V
3.060
3.110
3.160
3.210
3.260
3.310
3.360
3.410
3.460
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Idd Active, Vdd = 4V
5.000
5.005
5.010
5.015
5.020
5.025
5.030
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Reference, Iref = 0mA, Vdd = 5V
Reference, Iref = 5mA, Vdd = 5V
6.00
7.00
8.00
9.00
10.00
11.00
12.00
13.00
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Vdd UVLO (Rising)
Vdd UVLO (Falling)



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