LM22674QMR-ADJSLASHNOPB datasheet(5/26 Pages) TI

No. de pieza	LM22674QMR-ADJ/NOPB

Descripción Electrónicos	LM22674/-Q1 42 V, 500 mA SIMPLE SWITCHER짰 Step-Down Voltage Regulator with Features

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LM22674, LM22674-Q1

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SNVS590M – SEPTEMBER 2008 – REVISED NOVEMBER 2014

6.6 Electrical Characteristics

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

Unless otherwise specified: VIN = 12V.

PARAMETER

CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

LM22674-5.0

VIN = 8 V to 42 V

4.925

5.0

5.075

VFB

Feedback Voltage

V

VIN = 8 V to 42 V, –40°C ≤ TJ ≤

4.9

5.1

125°C

LM22674-ADJ

VIN = 4.7 V to 42 V

1.266

1.285

1.304

VFB

Feedback Voltage

V

VIN = 4.7 V to 42 V, –40°C ≤ TJ ≤

1.259

1.311

125°C

ALL OUTPUT VOLTAGE VERSIONS

VFB = 5 V

3.4

IQ

Quiescent Current

mA

VFB = 5 V, –40°C ≤ TJ ≤ 125°C

6

ISTDBY

Standby Quiescent Current

EN Pin = 0 V

25

40

µA

0.56

0.7

0.84

ICL

Current Limit

A

0.62

0.9

VIN = 42 V, EN Pin = 0 V, VSW = 0 V

0.2

2

µA

IL

Output Leakage Current

VSW = –1 V

0.1

3

µA

0.2

0.24

RDS(ON)

Switch On-Resistance

Ω

VIN = 4.7 V to 42 V, –40°C ≤ TJ ≤

0.32

125°C

500

fO

Oscillator Frequency

kHz

VIN = 4.7 V to 42 V, –40°C ≤ TJ ≤

400

600

125°C

200

TOFFMIN

Minimum Off-time

ns

VIN = 4.7 V to 42 V, –40°C ≤ TJ ≤

100

300

125°C

TONMIN

Minimum On-time

100

ns

IBIAS

Feedback Bias Current

VFB = 1.3 V (ADJ Version Only)

230

nA

Falling

1.6

VEN

Enable Threshold Voltage

V

Falling, –40°C

≤ TJ ≤ 125°C

1.3

1.9

VENHYST

Enable Voltage Hysteresis

0.6

V

IEN

Enable Input Current

EN Input = 0 V

6

µA

TSD

Thermal Shutdown Threshold

150

°C

(1)

MIN and MAX limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through

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

(2)

Typical values represent most likely parametric norms at the conditions specified and are not guaranteed.

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Product Folder Links: LM22674 LM22674-Q1

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