SC174EVB View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC174EVB

4A EcoSpeed™ Synchronous Step-Down Regulator with Optional Ultrasonic Power Save

Semtech Corporation 

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SC174

Typical Characteristics

0.755

FB Voltage vs Temperature

0.753

0.750

0.748

Black:VDD=5.0V

Red: VDD=3.0V

0.745

-40 -15 10 35 60 85 110 135

Temperature (°C)

Low Side Switch On-State Resistance vs

Temperature

58

54

50

46

42

38

Blue: VDD=3.0V

34

Black: VDD=5.0V

30

-40 -15 10 35 60 85 110 135

Temperature (°C)

High Side Switch On-State Resistance vs

Temperature

64

60

56

52

48

Blue: VDD=3.0V

44

Black: VDD=5.0V

40

-40 -15 10 35 60 85 110 135

Temperature (°C)

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Load Transient Test (VIN=5V, VOUT=1.2V, IOUT= 0A to 4A,

PSAVE Mode Enabled, LOUT=1.3PH,COUT=3x22PF,Channel 1:

50mV/Div, Channel 2:5V/Div,Channel 4:2A/Div,Time:20Ps/Div)

Load Transient Test (VIN=5V, VOUT=1.2V, IOUT= 4A to 0A,

PSAVE Mode Enabled, LOUT=1.3PH, COUT=3x22PF, Channel 1:

50mV/Div,Channel 2:5V/Div,Channel 4:2A/Div, Time:20Ps/Div)

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