NCP457FCT2G datasheet(5/13 Pages) ONSEMI

Part #	NCP457FCT2G

Description	2 A Single Load Switch for Low Voltage Rail

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP456R, NCP457

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ELECTRICAL CHARACTERISTICS Min & Max Limits apply for TA between −40°C to +85°C for VIN and VBIAS between 0.75 V to

5.5 V (Unless otherwise noted). Typical values are referenced to TA = + 25°C, VIN = 3.3 V and VBIAS = 5 V (Unless otherwise noted).

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

POWER SWITCH

RDS(on)

Static drain−

source on−state

resistance for

each rail

VIN = VBIAS = 5.5 V

TA = 25 °C

24

33

m

W

TJ = 125°C

39

m

W

VIN = VBIAS = 3.3 V

TA = 25°C

24

33

TJ = 125°C

39

VIN = VBIAS = 1.8 V

TA = 25°C

25

34

TJ = 125°C

4

0

VIN = VBIAS = 1.5 V

TA = 25°C

26

35

TJ = 125°C

41

VIN = VBIAS = 1.2 V

TA = 25°C

28

40

TJ = 125°C

42

VIN = 1.0 V.

VBIAS = 1.2 V

TA = 25°C

30

40

TJ = 125°C

42

VIN = 0.8 V,

VBIAS = 1.2 V

TA = 25°C

35

45

TJ = 125°C

50

RDIS

Output discharge

path

EN = low, NCP457

220

W

TIMINGS

TR

Output rise time

VIN = 5 V

No cap on GATE pin

0.11

ms

Gate capacitor = 1 nF

1.4

Gate capacitor = 10 nF

15.7

TF

Output fall time

CLOAD = 1 mF, RLOAD = 25 W

(Note 8)

50

ms

Ten

Enable time

From EN low to high to Vout =

10% of fully on− NCP456R.

1

0 nF gate capacitor

3

ms

From EN low to high to Vout =

10% of fully on− NCP456R. 1 nF

gate capacitor

300

ms

From EN low to high to Vout =

10% of fully on− NCP456R.

Without gate capacitor

51

ms

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

7. Parameters are guaranteed for CLOAD and RLOAD connected to the OUT pin with respect to the ground

8. Guaranteed by design and characterization, not production tested.

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