LM76005 datasheet(9/51 Pages) TI2

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6.8 System Characteristics

The following specifications apply to the circuit found in the typical application schematic with appropriate

modifications. These parameters are not tested in production and represent typical performance only. Unless

otherwise stated the following conditions apply: TA = 25°C, VIN = 24 V, VOUT = 3.3 V, fSW = 400 kHz.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VFB_PFM

Output voltage offset at no load

in auto mode

VIN = 3.8 V to 36 V, VSYNC = 0 V, auto mode

IOUT = 0 A

Vdrop

Minimum input to output

voltage differential to maintain

specified accuracy

VOUT = 5 V, IOUT = 1.5 A, fSW = 400 kHz

0.65

IQ_SW

Operating quiescent current

(switching)

VEN = 3.3 V, IOUT = 0 A, RT = open, VBIAS =

VOUT = 3.3 V, RFBT = 1 Meg

µA

IPEAK_MIN

Minimum inductor peak current VSYNC = 0 V, IOUT = 10 mA

IBIAS_SW

Operating quiescent current

from external VBIAS (switching)

fSW = 400 kHz, IOUT = 1 A

DMAX

Maximum switch duty cycle

While in frequency foldback

97.5%

tDEAD

Dead time between high-side

and low-side MOSFETs

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LM76005

SNVSBK5A – FEBRUARY 2020 – REVISED JULY 2020

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