NCV890200PDR2G datasheet(6/18 Pages) ONSEMI

Part #	NCV890200PDR2G

Description	2 A, 2 MHz Automotive Buck Switching Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCV890200

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ELECTRICAL CHARACTERISTICS (VIN = 4.5 V to 28 V, VEN = 5 V, VBST = VSW + 3.0 V, CDRV = 0.1 mF, Min/Max values are valid

for the temperature range −40

°C ≤ TJ ≤ 150°C unless noted otherwise, and are guaranteed by test, design or statistical correlation.)

Parameter

Unit

Max

Typ

Min

Conditions

Symbol

POWER SWITCH

ON Resistance

RDSON

VBST = VSW + 3.0 V

650

m

W

Leakage current VIN to SW

ILKSW

VEN = 0 V, VSW = 0, VIN = 18 V

10

mA

Minimum ON Time

tONMIN

Measured at SW pin

45

70

ns

Minimum OFF Time

tOFFMIN

Measured at SW pin

At FSW = 2 MHz (normal)

At FSW = 500 kHz (max duty cycle)

30

50

70

ns

PEAK CURRENT LIMIT

Current Limit Threshold

ILIM

2.2

2.45

2.7

A

SHORT CIRCUIT FREQUENCY FOLDBACK

Lowest Foldback Frequency

Lowest Foldback Frequency − High Vin

Hiccup Mode

FSWAF

FSWAFHV

FSWHIC

VFB = 0 V, 4.5 V < VIN < 18 V

VFB = 0 V, 20 V < VIN < 28 V

VFB = 0 V

400

200

24

500

250

32

600

300

40

kHz

GATE VOLTAGE SUPPLY (DRV pin)

Output Voltage

VDRV

3.1

3.3

3.5

V

DRV POR Start Threshold

VDRVSTT

2.7

2.9

3.05

V

DRV POR Stop Threshold

VDRVSTP

2.5

2.8

3.0

V

DRV Current Limit

IDRVLIM

VDRV = 0 V

16

45

mA

OUTPUT PRECHARGE DETECTOR

Threshold Voltage

VSSEN

20

35

50

mV

THERMAL SHUTDOWN

Activation Temperature (Note 1)

TSD

150

190

°C

Hysteresis (Note 1)

THYS

5

20

°C

1. Not tested in production. Limits are guaranteed by design.

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.

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