TPS62933O datasheet(5/47 Pages) TI

5 / 47 page

7.4 Thermal Information

THERMAL METRIC(1)

TPS62933

UNIT

DRL (SOT583), 8 PINS

JEDEC(2)

EVM(3)

RθJA

Junction-to-ambient thermal resistance

112.2

N/A

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

29.1

N/A

°C/W

RθJB

Junction-to-board thermal resistance

19.3

N/A

°C/W

ΨJT

Junction-to-top characterization parameter

1.6

N/A

°C/W

ΨJB

Junction-to-board characterization parameter

19.2

N/A

°C/W

RθJA_EVM

Junction-to-ambient thermal resistance on official

EVM board

N/A

60.2

°C/W

(1)

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

report.

(2)

The value of RθJA given in this table is only valid for comparison with other packages and can not be used for design purposes. These

values were simulated on a standard JEDEC board. They do not represent the performance obtained in an actual application.

(3)

The real RθJA on TPS62933EVM is about 60.2°C/W, test condition: VIN = 24 V, VOUT = 5 V, IOUT = 3 A, TA = 25°C.

7.5 Electrical Characteristics

The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These

specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life

of the product containing it. TJ = –40°C to +150°C, VIN = 3.8 V to 30 V, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY (VIN PIN)

VIN

Operation input voltage

3.8

Nonswitching quiescent current

EN = 5 V, VFB = 0.85 V

µA

ISHDN

Shutdown supply current

VEN = 0 V

µA

VIN_UVLO

Input undervoltage lockout

thresholds

Rising threshold

3.4

3.6

3.8

Falling threshold

3.1

3.3

3.5

Hysteresis

300

ENABLE (EN PIN)

VEN_RISE

Enable threshold

Rising enable threshold

1.21

1.28

VEN_FALL

Disable threshold

Falling disable threshold

1.1

1.17

EN pullup current

VEN = 1.0 V

0.7

µA

EN pullup hysteresis current

VEN = 1.5 V

1.4

µA

VOLTAGE REFERENCE (FB PIN)

VFB

FB voltage

TJ = 25°C

792

800

808

TJ = 0°C to 85°C

788

800

812

TJ = –40°C to 150°C

784

800

816

IFB

Input leakage current

VFB = 0.8 V

0.15

μA

INTEGRATED POWER MOSFETS

RDSON_HS

High-side MOSFET on-resistance

TJ = 25°C, VBST – SW = 5 V

mΩ

RDSON_LS

Low-side MOSFET on-resistance

TJ = 25°C

mΩ

CURRENT LIMIT

IHS_LIMIT

High-side MOSFET current limit

TPS62933

4.2

5.8

ILS_LIMIT

Low-side MOSFET current limit

TPS62933

2.9

3.8

4.5

IPEAK_MIN

Minimum peak inductor current

TPS62933

0.75

SOFT START (SS PIN)

ISS

Soft-start charge current

4.5

5.5

6.5

μA

OSCILLATOR FREQUENCY (RT PIN)

www.ti.com

TPS62933

SLUSEA4A – JUNE 2021 – REVISED DECEMBER 2021

Submit Document Feedback

Product Folder Links: TPS62933

TPS62933O Datasheet(PDF) 5 Page - Texas Instruments

TPS62933O Datasheet(HTML) 5 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Datasheet Download

Link URL