LM76005 datasheet(6/51 Pages) TI2

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6.4 Thermal Information

THERMAL METRIC(1)

LM76005

UNIT

RNP (WQFN)

30 PINS

RθJA

Junction-to-ambient thermal resistance

29.6

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

17.6

°C/W

RθJB

Junction-to-board thermal resistance

9.1

°C/W

ψJT

Junction-to-top characterization parameter

0.2

°C/W

ψJB

Junction-to-board characterization parameter

9.0

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

1.0

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

6.5 Electrical Characteristics

Limits apply over the recommended operating junction temperature (TJ) range of –40°C to +125°C, unless

otherwise stated. Minimum and maximum limits are specified through test, design or statistical correlation.

Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes

only. Unless otherwise stated, the following conditions apply: VIN = 24 V, VOUT = 3.3 V, fSW = 400 kHz.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY VOLTAGE (PVIN PINS)

VIN

Operating input voltage

range

3.5

ISD

Shutdown quiescent current;

measured at PVIN pin(1)

VEN = 0 V

1.2

µA

IQ_NONSW

Operating quiescent current

from VIN (non-switching)

VEN = 2 V, VFB = 1.5 V, VBIAS = 3.3 V

external

µA

ENABLE (EN PIN)

VEN_VCC_H

Enable input high level for

VCC output

VEN rising

1.2

VEN_VCC_L

Enable input low level for

VCC output

VEN falling

0.3

VEN_VOUT_H

Enable input high level for

VOUT

VEN rising

1.14

1.204

1.25

VEN_VOUT_HYS

Enable input hysteresis for

VOUT

VEN falling hysteresis

–150

ILKG_EN

Enable input leakage current VEN = 2 V

1.4

200

INTERNAL LDO (VCC PIN, BIAS PIN)

VCC

Internal VCC voltage

PWM operation

3.29

PFM operation

3.1

VCC_UVLO

Internal VCC undervoltage

lockout

VCC rising

2.96

3.14

3.27

VCC falling hysteresis

–565

VBIAS_ON

Input change over

VBIAS rising

3.11

3.25

VBIAS falling hysteresis

–63

IBIAS_NONSW

Operating quiescent current

from external VBIAS (non-

switching)

VEN = 2 V, VFB = 1.5 V, VBIAS = 3.3 V

external

µA

VOLTAGE REFERENCE (FB PIN)

VFB

Feedback voltage

PWM mode

0.987

1.006

1.017

ILKG_FB

Input leakage current at FB

VFB = 1 V

0.2

LM76005

SNVSBK5A – FEBRUARY 2020 – REVISED JULY 2020

www.ti.com

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