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6.4 Thermal Information

THERMAL METRIC(1)

LP5910

UNIT

YKA (DSBGA)

DRV (WSON)

4 PINS

6 PINS

RθJA (2)

Junction-to-ambient thermal resistance, High-K

202.8

79.2(3)

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

3.3

110.2

°C/W

RθJB

Junction-to-board thermal resistance

36.0

48.7

°C/W

ψJT

Junction-to-top characterization parameter

0.4

5.2

°C/W

ψJB

Junction-to-board characterization parameter

36.0

49.1

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

n/a

18.1

°C/W

(1)

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

report.

(2)

Thermal resistance value RθJA is based on the EIA/JEDEC High-K printed circuit board defined by: JESD51-7 - High Effective Thermal

Conductivity Test Board for Leaded Surface Mount Packages.

(3)

The PCB for the WSON/DRV package RθJA includes two (2) thermal vias under the exposed thermal pad per EIA/JEDEC JESD51-5.

6.5 Electrical Characteristics

VIN = VOUT(NOM) + 0.5 V, VEN = 1 V, IOUT = 1 mA, CIN = 1 µF, and COUT = 1 µF (unless otherwise noted)(1) (2) (3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

GENERAL

ΔVOUT

Output voltage tolerance

VIN = (VOUT(NOM) + 0.5 V) to 3.3 V,

IOUT = 1 mA to 300 mA

–2

%VOUT

Line regulation

VIN = (VOUT(NOM) + 0.5 V) to 3.3 V,

IOUT = 1 mA

0.01

%/V

Load regulation

IOUT = 1 mA to 300 mA

0.002

%/mA

ILOAD

Load current

See(4)

300

Quiescent current(5)

VEN = 1 V, IOUT = 0 mA

µA

VEN = 1 V, IOUT = 300 mA

230

350

IQ(SD)

Quiescent current in

shutdown(5)

VEN = 0.3 V, –40°C ≤ TJ ≤ 85°C

0.02

IRO

Output reverse current(7)

VOUT > VIN

VOUT = 3.3 V, VIN = VEN = 0 V

–20

µA

VOUT = 3.3 V, VIN = VEN = 1.3 V

µA

Ground current(6)

IOUT = 0 mA (VOUT = 2.3 V)

µA

VDO

Dropout voltage(8)

1.3 V ≤ VOUT < 1.5 V,

IOUT = 300 mA

DSBGA only

200

300

1.5 V ≤ VOUT <1.8V,

IOUT = 300 mA

DSBGA only

160

235

1.8 V ≤ VOUT ≤ 2.3 V,

IOUT = 300 mA

DSBGA only

120

180

1.3 V ≤ VOUT < 1.5 V,

IOUT = 300 mA

WSON only

245

370

1.5 V ≤ VOUT < 1.8V,

IOUT = 300 mA

WSON only

195

270

1.8 V ≤ VOUT ≤ 2.3 V,

IOUT = 300 mA

WSON only

145

220

ILIMIT

Output current limit

VOUT = VOUT(NOM) – 0.1 V

VIN = VOUT(NOM) + 0.5 V

450

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LP5910

SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021

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