LMZ22003 datasheet(4/33 Pages) TI

部件名	LMZ22003

功能描述	3A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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LMZ22003

SNVS658I – MARCH 2011 – REVISED AUGUST 2015

www.ti.com

6.2 ESD Ratings

VALUE

UNIT

V(ESD)

Electrostatic discharge

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)

±2000

V

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

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

MIN

MAX

UNIT

VIN

6

20

V

EN, SYNC

0

5

V

Operation junction temperature

–40

125

°C

6.4 Thermal Information

LMZ22003

THERMAL METRIC(1)

NDW

UNIT

7 PINS

4-layer Evaluation Printed-Circuit-Board,

12.0

60 vias, No air flow

Junction-to-ambient thermal

RθJA

°C/W

resistance(2)

2-layer JEDEC Printed-Circuit-Board,

21.5

No air flow

Junction-to-case (top) thermal

RθJC(top)

No air flow

1.9

°C/W

resistance

(1)

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

report, SPRA953.

(2)

RθJA measured on a 3.5-in × 3.5-in 4-layer board, with 3-oz. copper on outer layers and 2-oz. copper on inner layers, sixty thermal vias,

no air flow, and 1-W power dissipation. Refer to application note layout diagrams.

6.5 Electrical Characteristics

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 = 12 V, VOUT = 3.3 V.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

SYSTEM PARAMETERS

ENABLE CONTROL

VEN rising, TJ = 25°C

1.279

VEN

EN threshold trip point

V

VEN rising, TJ = –40°C to +125°C

1.1

1.458

VEN-HYS

EN input hysteresis current

VEN > 1.279 V

–21

µA

SOFT-START

VSS = 0 V, TJ = 25°C

50

ISS

SS source current

µA

VSS = 0 V, TJ = –40°C to +125°C

40

50

60

tSS

Internal soft-start interval

1.6

ms

CURRENT LIMIT

ICL

Current limit threshold

DC average, TJ = –40°C to +125°C

3.4

A

(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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