NCV51200MWTXG datasheet(3/7 Pages) ONSEMI

Part #	NCV51200MWTXG

Description	Termination Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP51200, NCV51200

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ELECTRICAL CHARACTERISTICS

−40

°C ≤ TA ≤ 125°C; VCC = 3.3 V; PVCC = 1.8 V; VRI = VTTS = 0.9 V; EN = VCC; COUT = 3 x 10 mF (Ceramic); unless otherwise noted.

Parameter

Conditions

Symbol

Min

Typ

Max

Units

Supply Current

VCC Supply Current

TA = +25°C, EN = 3.3 V, No Load

IVCC

0.7

1

mA

VCC Shutdown Current

TA = +25°C, EN = 0 V, VRI = 0 V, No Load

IVCC SHD

65

80

mA

TA = +25°C, EN = 0 V, VRI > 0.4 V, No Load

200

400

VCC UVLO Threshold

Wake−up, TA = +25°C

VUVLO

2.2

2.3

2.375

V

Hysteresis

50

mV

PVCC Supply Current

TA = +25°C, EN = 3.3 V, No Load

IPVCC

1

50

mA

PVCC Shutdown Current

TA = +25°C, EN = 0 V, No Load

IPVCC SHD

0.1

50

mA

VTT Output

VTT Output Offset Voltage

VRO = 1.25 V (DDR1), ITT = 0 A

VOS

−15

+15

mV

VRO = 0.9 V (DDR2), ITT = 0 A

−15

+15

PVCC = 1.5 V, VRO = 0.75 V (DDR3),

ITT = 0 A

−15

+15

VTT Voltage Tolerance to VRO

−2 A

≤ ITT ≤ +2 A

−25

+25

mV

Source Current Limit

VTTS = 90% * VRO

3

4.5

A

Sink Current Limit

VTTS = 110% * VRO

3.5

5.5

A

Soft−start Current Limit

Timeout

TSS

200

ms

Discharge MOSFET

On−resistance

VRI = 0 V, VTT = 0.3 V, EN = 0 V, TA = +25°C

RDIS

18

25

W

VRI − Input Reference

VRI Voltage Range

VRI

0.5

1.8

V

VRI Input−bias Current

EN = 3.3 V

IRI

+1

mA

VRI UVLO Voltage

VRI rising

VRI UVLO

360

390

435

mV

Hysteresis

VRI HYS

60

VRO − Output Reference

VRO Voltage

VRI

V

VRO Voltage Tolerance to VRI

IRO = ±10 mA, 0.6 V ≤ VRI ≤ 1.25 V

−15

+15

mV

VRO Source Current Limit

VRO = 0 V

10

40

mA

VRO Sink Current Limit

VRO = 0 V

10

40

mA

PGOOD − Powergood Comparator

PGOOD Lower Threshold

(with respect to VRO)

−23.5%

−20%

−17.5

%

V/V

PGOOD Upper Threshold

(with respect to VRO)

17.5%

20%

23.5%

PGOOD Hysteresis

5%

PGOOD Start−up Delay

Start−up rising edge, VTTS within 15% of

VRO

2

ms

PGOOD Leakage Current

VTTS = VRI (PGOOD = True)

PGOOD = VCC + 0.2 V

1

mA

PGOOD = False Delay

VTTS is beyond ±20% PGOOD trip thresholds

10

ms

PGOOD Output Low Voltage

IGOOD = 4 mA

0.4

V

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