SC4620 Просмотр технического описания (PDF) - Semtech Corporation

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производитель

SC4620

Low Input Voltage, High Effciency, 2.5A Integrated FET Synchronous Step down DC/DC Regulator

Semtech Corporation 

POWER MANAGEMENT

OTyppeicratlioPnerformance Characteristics (Cont.)

Regulation During Switching to Linear Mode

2.54

2.52

2.50

2.48

VOUT

2.46

2.44

2.42

2.40

2.38

2.36

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

IOUT (A)

Figure 13. Loading Regulation

SC4620

˖˜˦˘˧ːO˄˃˃Ć˙Pʿʳ˖ˌ Trip

ˆˁ˅

ˆˁ˃

3.3Vin

˅ˁˋ

˅ˁˉ

5Vin

˅ˁˇ

˅ˁ˅

˅ˁ˃

˄ˁˋ

2.5Vin

˄ˁˉ

˄ˁˇ

˄ˁ˅

˄ˁ˃

ˆˈ ˇ˃ ˇˈ ˈ˃ ˈˈ ˉ˃ ˉˈ ˊ˃ ˊˈ ˋ˃ ˋˈ ˌ˃ ˌˈ ˄˃˃

˥R˜˦˘IS˧ʻE˞T̂˻(̀Kʼ Ω)

Figure 14. Over Current Setting versus RISET

 2008 Semtech Corp.



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