LMZ14202H

SNVS691H – JANUARY 2011 – REVISED OCTOBER 2015

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6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

VIN

6

42

V

EN

0

6.5

V

Operation Junction Temperature

−40

125

°C

6.4 Thermal Information

LMZ14202H

NDW (TO-

THERMAL METRIC(1)

UNIT

PMOD)

7 PINS

4-layer Printed-Circuit-Board, 7.62 cm × 7.62 cm (3 in × 3 in) area,

16

1-oz Copper, No air flow

Junction-to-ambient thermal

RθJA

°C/W

resistance

4-layer Printed-Circuit-Board, 6.35 cm × 6.35 cm (2.5 in × 2.5 in)

18.4

area, 1-oz Copper, No air flow

Junction-to-case (top)

RθJC(top)

No air flow

1.9

°C/W

thermal resistance

(1)

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

report, SPRA953.

6.5 Electrical Characteristics

Limits are for TJ = 25°C unless otherwise specified. Minimum and Maximum limits are ensured 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 = 12 V, RON = 249 kΩ

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

SYSTEM PARAMETERS

ENABLE CONTROL

1.18

VEN

EN threshold trip point VEN rising

V

over the junction temperature

1.1

1.25

(TJ) range of –40°C to +125°C

EN threshold

VEN-HYS

90

mV

hysteresis

SOFT-START

10

ISS

SS source current

VSS = 0 V

µA

over the junction temperature

8

15

(TJ) range of –40°C to +125°C

ISS-DIS

SS discharge current

-200

µA

CURRENT LIMIT

3.2

ICL

Current limit threshold DC average

A

over the junction temperature

2.4

3.95

(TJ) range of –40°C to +125°C

VIN UVLO

EN pin floating

VINUVLO

Input UVLO

3.75

V

VIN rising

EN pin floating

VINUVLO-HYST Hysteresis

130

mV

VIN falling

ON/OFF TIMER

ON timer minimum

tON-MIN

150

ns

pulse width

tOFF

OFF timer pulse width

260

ns

(1)

Minimum and Maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through

correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely parametric norm.

4

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