SC2446A Semtech Corporation, SC2446A Datasheet - Page 22

• Manufacturer Part Number: SC2446A
• Description: Dual-Phase Single or Two Output Synchronous Step-Down Controller
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Typical Characteristics
2005 Semtech Corp.
0.98
0.96
0.94
0.92
0.88
0.86
0.84
0.82
0.78
0.76
0.74
0.72
0.9
0.8
0.7
7 0
6 0
5 0
4 0
3 0
2 0
1 0
1
0
2
0
4
2
6
4
V i n = 1 2 V , D u a l O u tp u t, F s w = 5 0 0 K H z, Ta m b = 2 5 °C , 0 L F M
V i n = 1 2 V , D u a l O utp u t, F s w = 5 0 0 K H z, T a m b = 2 5 °C , 0 LF M
8
6
S C 2 4 4 6 A + P I P 2 1 2 D u a l P ha s e E ffi c ie n c y
10
8
D ua l P h a s e Th e rm a l s
A M P S
A M P S
12
1 0
22
14
1 2
15
1 4
16
1 6
18
1 8
20
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2 0
Channel 2: Vo2 = 1.2V
Channel 1: Vo1 = 2.5V
2. 5V Ef fic i en c y
1. 2V Ef fic i en c y
SC2446A
2. 5V t h erm als
1. 2V t h erm als
2. 5V t h erm als
1. 2V t h erm als
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