5.5 Electrical Characteristics

TJ = –40°C to 125°C, VIN = 3.6 V and VOUT = 5.0 V. Typical values are at TJ = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

VIN

Input voltage range

1.8

5.5

V

VIN_UVLO

Under-voltage lockout threshold

VIN rising

1.7

1.79

V

VIN falling

1.6

V

VIN_HYS

VIN UVLO hysteresis

65

mV

IQ

Quiescent current into AVIN pin

IC enabled, No load, No switching VAVIN

= 1.8 V to 5.5 V, VFB = VREF + 0.1 V, TJ

up to 125°C

13

20

25

µA

Quiescent current into VOUT pin

IC enabled, No load, No switching VOUT =

2.2 V to 5.5 V, VFB = VREF + 0.1 V, TJ up

to 125°C

5.3

8.4

µA

ISD

Shutdown current into AVIN and PVIN pin

IC disabled, VAVIN = VPVIN = 3.6 V, TJ =

25°C

0.1

0.2

µA

OUTPUT

VOUT

Output voltage setting range

2.2

5.5

V

VOUT (fixed 5V) Fixed output voltage

FB connected to AVIN

VIN < VOUT, PWM mode

4.93

5

5.07

V

VREF

Reference voltage at the FB pin

PWM mode

591

600

609

mV

VREF

Reference voltage at the FB pin

PFM mode

606

mV

VOVP

Output over-voltage protection threshold

VOUT rising

5.5

5.75

6.0

V

VOVP_HYS

Over-voltage protection hysteresis

0.11

V

IFB_LKG

Leakage current at FB pin

TJ = 25°C

4

25

nA

IFB_LKG

Leakage current at FB pin

TJ = 125°C

5

30

nA

IVOUT_LKG

Leakage current into VOUT pin

IC disabled, VAVIN = 0 V, VPVIN = 0

V, VOUT = 5.5 V, TJ = 25°C

0.2

0.5

µA

POWER SWITCH

RDS(on)

High-side MOSFET on resistance

VOUT = 5.0 V

46

mΩ

RDS(on)

Low-side MOSFET on resistance

VOUT = 5.0 V

22

mΩ

fSW

Switching frequency

VAIN = 3.6 V, VOUT = 5.0 V, PWM mode

2.0

2.4

2.8

MHz

ILIM_SW

Valley current limit

VAVIN = 3.6 V, VOUT = 5.0 V, MODE=0

1.45

2

2.25

A

ILIM_SW

Valley current limit

VAVIN = 3.6 V, VOUT = 5.0 V, MODE=1

1.4

1.95

2.2

A

IREVERSE

Reverse current limit (MODE=1)

VAVIN = 3.6 V, VOUT = 5.0 V; MODE = 1

-1.4

A

ILIM_CHG

Pre-charge current(1)

VAVIN = 1.8 - 5.5 V, VOUT < 0.4 V

330

mA

LOGIC INTERFACE

VEN_H

EN logic high threshold

VAVIN > 1.8 V or VOUT > 2.2 V

1.2

V

VEN_L

EN logic low threshold

VAVIN > 1.8 V or VOUT > 2.2 V

0.4

V

VMODE_H

MODE Logic high threshold

VAVIN > 1.8 V or VOUT > 2.2 V

1.2

V

VMODE_L

MODE Logic Low threshold

VAVIN > 1.8 V or VOUT > 2.2 V

0.4

V

RDOWN

EN pins internal pull-down resistor

10

MΩ

RDOWN

MODE pins internal pull-down resistor

1

MΩ

PROTECTION

TSD

Thermal shutdown threshold(1)

TJ rising

170

°C

TSD

Thermal shutdown threshold(1)

TJ falling

155

°C

TSD_HYS

Thermal shutdown hysteresis(1)

TJ falling below TSD

15

°C

(1)

Specified by characterization. Not production tested.

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TPSM81033

SLVSHL0D – JUNE 2024 – REVISED DECEMBER 2024

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