6.5 Electrical Characteristics

Limits apply over TJ = –40°C to 125°C, VIN = 24 V, VOUT = 3.3 V, VLDOIN = 5 V, FSW = 800 kHz (unless otherwise noted).

Minimum and maximum limits are specified through production test or by design. Typical values represent the most likely

parametric norm and are provided for reference only.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY VOLTAGE

VIN

Input operating voltage range

Needed to start up (over IOUT range)

3.95

36

V

Once operating (over IOUT range)

3

36

V

VIN_HYS

Hysteresis(1)

1.0

V

IQ_VIN

Input operating quiescent current (non-switching)

TA = 25°C, VEN = 3.3 V, VFB = 1.5 V

4

µA

ISDN_VIN

VIN shutdown quiescent current

VEN = 0 V, TA = 25°C

3

µA

ENABLE

VEN_RISE

EN voltage rising threshold

1.161

1.263

1.365

V

VEN_FALL

EN voltage falling threshold

0.91

V

VEN_HYS

EN voltage hysteresis

0.275

0.353

0.404

V

VEN_WAKE

EN wake-up threshold

0.4

V

IEN

Input current into EN (non-switching)

VEN = 3.3 V, VFB = 1.5 V

1.65

µA

tEN

EN HIGH to start of switching delay(1)

0.7

ms

INTERNAL LDO VCC

VCC

Internal LDO VCC output voltage

3.4 V ≤ VLDOIN ≤ 12.5 V

3.3

V

VLDOIN = 3.1 V, non-switching

3.1

V

VCC_UVLO

VCC UVLO rising threshold

VLDOIN < 3.1 V(1)

3.6

V

VIN < 3.6 V(2)

3.6

V

VCC_UVLO_HYS VCC UVLO hysteresis(2)

Hysteresis below VCC_UVLO

1.1

V

IVLDOIN

Input current into the VLDOIN pin (non-switching,

maximum at TA = 125℃)(3)

VEN = 3.3 V, VFB = 1.5 V

25

31.2

µA

FEEDBACK

VOUT

Adjustable output voltage range

Over the IOUT range

1

6

V

VFB

Feedback voltage

TA = 25°C, IOUT = 0 A

1.0

V

VFB_ACC

Feedback voltage accuracy

Over the VIN range, VOUT = 1 V, IOUT = 0

A, FSW = 200 kHz

–1%

+1%

VFB

Load regulation

TA = 25°C, 0 A ≤ IOUT ≤ 3 A

0.1%

VFB

Line regulation

TA = 25°C, IOUT = 0 A, 4.0 V ≤ VIN ≤ 36 V

0.1%

IFB

Input current into the FB pin

VFB = 1.0 V

10

nA

CURRENT

IOUT

Output current

TA = 25°C

0

3.0

A

IOCL

Output overcurrent (DC) limit threshold

4.9

A

IL_HS

High-side switch current limit

Duty cycle approaches 0%

5.6

6.2

6.8

A

IL_LS

Low-side switch current limit

2.9

3.4

3.8

A

IL_NEG

Negative current limit

–3

A

VHICCUP

Ratio of FB voltage to in-regulation FB voltage to

enter hiccup

Not during soft start

40%

tW

Short circuit wait time ("hiccup" time before soft start)

(1)

80

ms

SOFT START

tSS

Time from first SW pulse to VREF at 90%

VIN ≥ 4.2 V

3.5

5

7

ms

tSS2

Time from first SW pulse to release of FPWM lockout

if output not in regulation(1)

VIN ≥ 4.2 V

9.5

13

17

ms

www.ti.com

TLVM13630

SLVSFT6B – MAY 2021 – REVISED JANUARY 2022

Copyright © 2022 Texas Instruments Incorporated

Submit Document Feedback

7

Product Folder Links: TLVM13630