NCP5380 datasheet(6/27 Pages) ONSEMI

Part #	NCP5380

Description	7-Bit, Programmable, Single-Phase, Synchronous Buck Switching Regulator Controller

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP5380

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ELECTRICAL CHARACTERISTICS VCC = 5 V, FBRTN = 112.5 mV, VVID = 1.25 V, TA = 0°C to 85°C, unless otherwise noted (Note 1).

Current entering a pin (sunk by the device) has a positive sign.

Parameter

Unit

Max

Typ

Min

Conditions

Symbol

POWER GOOD

PWRGD delay Time

tPWRGD

6

10

11

ms

CURRENT MONITOR

IMON Output Current

IIMON

VCSREF − VCSCOMP = 100 mV

9

10

11

mA

IMON Output Current

IIMON

VCSREF − VCSCOMP = 10 mV

0.9

1

1.1

mA

IMON Clamp

VIMON

1.0

1.15

V

HIGH−SIDE MOSFET DRIVER

Output Resistance, Sourcing Current

BST − SW = 4.6 V

1.6

3.3

W

Output Resistance, Sinking Current

BST − SW = 4.6 V

1.3

2.8

W

Transition Times

trDRVH,

BST − SW = 4.6 V, CL = 3 nF

15

35

ns

tfDRVH

BST − SW = 4.6 V, CL = 3 nF

13

31

ns

Dead Delay Times

tpdhDRVH

BST − SW = 4.6 V

20

45

ns

BST Quiescent Current

EN = low, shutdown

5

15

mA

EN = high, no switching

200

mA

LOW−SIDE MOSFET DRIVER

Output Resistance, Sourcing Current

1.4

3.0

W

Output Resistance, Sinking Current

1

2.7

W

Transition Times

trDRVL

CL = 3 nF

15

35

ns

tfDRVL

CL = 3 nF

14

35

ns

Propagation Delay Times

tpdhDRVL

CL = 3 nF

24

40

ns

SW Transition Timeout

tTO(SW)

BST − SW = 4.6 V

150

250

450

ns

Zero−Crossing Threshold

VZC

1.5

V

PVCC Quiescent Current

EN = low, shutdown

14

50

mA

EN = high, no switching

450

mA

BOOTSTRAP RECTIFIER

Output Resistance

4.0

8.0

11

W

SOFT STOP

CSREF Resistance to GND

EN = low or latch off

70

W

SUPPLY

Supply Voltage Range (Note 2)

VCC

4.5

5.5

V

Supply Current

Normal mode

4.2

10

mA

EN = 0 V

60

200

mA

VCC OK Threshold Voltage

VCCOK

VCC rising

4.4

4.5

V

VCC UVLO Threshold Voltage

VCCUVLO

VCC falling

4.0

4.2

V

UVLO Hysteresis (Note 2)

250

mV

1. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

2. Guaranteed by design or bench characterization, not production tested.

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