SC414 データシートの表示（PDF） - Semtech Corporation

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SC414

6A Integrated FET Regulator with 5V LDO

Semtech Corporation 

SC414/SC424

Electrical Characteristics (continued)

Parameter

Conditions

Power Good

Power Good Threshold

Start-Up Delay Time (Time between EN going

high and PGOOD going high)

Upper limit, V > internal 750mV reference

FB

Lower limit, V < internal 750mV reference

FB

V5V = 3V

V5V = 5V

Fault (noise immunity) Delay Time(2)

Leakage

Power Good On-Resistance

Fault Protection

Valley Current Limit

Valley Current Limit

ILIM Source Current

I Comparator Offset

LIM

Output Under-Voltage Fault

Smart Power-save Protection Threshold (2)

Over-Voltage Protection Threshold

Over-Voltage Fault Delay(2)

V5V = 5V, R = 5k Ω

ILIM

V5V = 3V, RILIM = 5k Ω

With respect to AGND

V with respect to internal 750mV reference,

FB

8 consecutive clock cycles

V with respect to internal 750mV reference

FB

V with respect to internal 750mV reference

FB

Over-Temperature Shutdown(2)

10°C hysteresis

Logic Inputs/Outputs

Logic Input High Voltage

ENL

Logic Input Low Voltage

ENL

EN/PSV Input for PSAVE Operation (2)

% of V5V

EN/PSV Input for Forced Continuous Operation (2)

% of V5V

EN/PSV Input for Disabling Switcher (2)

EN/PSV Input Bias Current

EN/PSV= V5V or AGND

ENL Input Bias Current

FB Input Bias Current

VIN = 28V

FB = V5V or AGND

Min Typ Max Units

+20

%

-10

%

2

ms

4

5

μs

1

μA

10

Ω

3

4

5

A

3.4

A

8

μA

-8

0

+8

mV

-25

%

+10

%

+20

%

5

μs

150

°C

1

V

0.4

V

45

100

%

1V

42

%

0

0.4

V

-10

+10 μA

11

18

μA

-1

+1

μA

6

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