NCP5380_12 datasheet(5/28 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, NCP5380A

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ELECTRICAL CHARACTERISTICS VCC = 5.0 V, FBRTN = 112.5 mV, VVID = 1.25 V, TA = 0°C to 85°C (NCP5380), TA = −40°C to

100°C (NCP5380A), unless otherwise noted (Note 1). Current entering a pin (sunk by the device) has a positive sign.

Parameter

Unit

Max

Typ

Min

Conditions

Symbol

CURRENT SENSE AMPLIFIER

Offset Voltage

VOS(CSA

)

CSFB − CSREF

−1.4

+1.4

mV

Input Bias Current

IBIAS(CS

FB)

−50

+50

nA

Gain Bandwidth Product (Note 2)

GBW(CS

A)

20

MHz

Slew Rate (Note 2)

CCSCOMP = 10 pF

10

V/ms

Input Common−Mode Range (Note

2)

CSFB and CSREF

0

2

V

Output Voltage Range

VCSCOM

P

0.05

2

V

Output Current

ICSCOMP

Source current

−650

mA

Sink current

1

mA

SWITCH AMPLIFIER

Common−Mode Range (Note 2)

VSW

−400

+200

mV

Input Resistance

RSW

0.8

1.5

2.0

kW

Zero Current Switching Threshold

VZCS(SW

)

DCM Mode

−6

mV

DCM Minimum Off Time Masking

tOFFMAS

K

SW falling

700

ns

CURRENT LIMIT COMPARATOR

ILIM Voltage

VILIM−

VCSCOM

P

RILIMIT = 5 kW,

VCSREF − VCSCOMP = 100 mV

−70

−100

−130

mV

VILIM−

VCSCOM

P

RILIMIT = 5 kW,

VCSREF − VCSCOMP = 0 mV

−1

0

1

mV

Current Limit Latch Off Delay

From OCP Event to PWRGD De−asser-

tion

8

ms

SOFT−START

Soft−Start Time

tss

From FB = 0V to FB = Vboot

1.4

ms

Soft−Start Delay

From EN POS Edge to FB = 50 mV

200

ms

SOFT TRANSIENT CONTROL

Output Voltage Positive Slew Rate

10

12.5

15

mV⁄ms

Output Voltage Negative Slew Rate

−10

−12.5

−15

mV⁄ms

Extended PWRGD Masking

Comparator Threshold

VTH(ST)

|ST − VVID|, ST falling

150

mV

SYSTEM LOGIC INPUTS

Input Voltage

VEN

Refers to driving signal level

Logic low, Isink = 1 mA

0.3

V

Logic high, Isource = −5 mA

0.7

V

Input Current

IEN

VEN,VID[1:7] = 0 V

10

nA

0.2 V < VEN,VID[1:7] ≤ VCC

1

mA

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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