LMZ10505 datasheet(5/36 Pages) TI

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LMZ10505

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SNVS633I – JANUARY 2010 – REVISED SEPTEMBER 2015

6.5 Electrical Characteristics

Specifications 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. VIN = VEN = 3.3 V, unless otherwise indicated in the conditions column.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

SYSTEM PARAMETERS

0.8

Total Feedback

VIN = 2.95 V to 5.5 V

Voltage Variation

over the operating junction

V FB

VOUT = 2.5 V

V

Including Line and

temperature range TJ of

0.78

0.82

IOUT = 0 A to 5 A

Load Regulation

–55°C to 125°C

0.8

VIN = 3.3 V, VOUT = 2.5

Feedback Voltage

over the operating junction

V FB

V

Variation

temperature range TJ of

0.787

0.812

IOUT = 0 A

–55°C to 125°C

0.798

VIN = 3.3 V, VOUT = 2.5

Feedback Voltage

over the operating junction

V FB

V

Variation

temperature range TJ of

0.785

0.81

IOUT = 5 A

–55°C to 125°C

2.6

over the operating junction

Rising

temperature range TJ of

2.95

–55°C to 125°C

Input UVLO Threshold

VIN(UVLO)

V

(Measured at VIN pin)

2.4

over the operating junction

Falling

temperature range TJ of

1.95

–55°C to 125°C

ISS

Soft-Start Current

Charging Current

2

µA

1.55

Non-Switching Input

over the operating junction

IQ

VFB = 1 V

mA

Current

temperature range TJ of

3

–55°C to 125°C

267

Shutdown Quiescent

over the operating junction

ISD

VIN = 5.5 V, VEN = 0 V

µA

Current

temperature range TJ of

500

–55°C to 125°C

7.3

Output Current Limit

over the operating junction

IOCL

VOUT = 2.5 V

A

(Average Current)

temperature range TJ of

5.1

8.7

–55°C to 125°C

fFB

Frequency Fold-back

In current limit

250

kHz

PWM SECTION

1000

fSW

Switching Frequency

kHz

over the operating junction temperature range TJ of

750

1160

–55°C to 125°C

PWM Duty Cycle

over the operating junction temperature range TJ of

Drange

0%

100%

Range

–55°C to 125°C

ENABLE CONTROL

1.23

EN Pin Rising

VEN-IH

V

over the operating junction temperature range TJ of

Threshold

1.8

–55°C to 125°C

1.06

EN Pin Falling

VEN-IF

V

over the operating junction temperature range TJ of

Threshold

0.8

–55°C to 125°C

(1)

Minimum and maximum limits are 100% production tested at an ambient temperature (TA) of 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.

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