Texas Instruments LV14360 Handleiding

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LV14360 60-V, 3-A Step-Down Converter With High Light Load Efficiency

1 Features

•4.3-V to 60-V input range

•3-A continuous output current

•300-µA operating quiescent current

•155-mΩ high-side MOSFET

•Current mode control

•Adjustable switching frequency from 200 kHz to 2

MHz

•Frequency synchronization to external clock

•Internal compensation for ease of use

•High duty cycle operation supported

•Precision enable input

•1-µA shutdown current

•Thermal, overvoltage, and short protection

•8-pin HSOIC with PowerPAD

™

package

2 Applications

•Industrial power supplies

•Communications equipment and datacom modules

•General purpose wide V

IN

regulation

3 Description

The LV14360 is a 60-V, 3-A step-down regulator with

an integrated high-side MOSFET. With a wide input

range from 4.3 V to 60 V, the device is suitable

for various applications from industrial to automotive

for power conditioning from unregulated sources.

The quiescent current of the regulator is 300 µA in

sleep mode, which is suitable for battery-powered

systems. An ultra-low 1-μA current in shutdown mode

can further prolong battery life. A wide adjustable

switching frequency range allows either efficiency or

external component size to be optimized. Internal

loop compensation means that the user is free

from the tedious task of loop compensation design.

This also minimizes the external components of the

device. A precision enable input allows simplification

of regulator control and system power sequencing.

The device also has built-in protection features such

as cycle-by-cycle current limit, thermal sensing and

shutdown due to excessive power dissipation, and

output overvoltage protection.

The LV14360 is available in an 8-pin, 4.89-mm ×

3.9-mm HSOIC package with exposed pad for low

thermal resistance.

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LV14360HSOIC4.89-mm × 3.9-mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

BOOT

SW

L

C

BOOT

FB

VIN

V

IN

up to 60 V

GND

C

OUT

EN

C

IN

SS

RT/SYNC

V

OUT

R

T

R

FBT

R

FBB

D

C

SS

Simplified Schematic For Soft-Start (SS) Option

I

OUT

(A)

Efficiency (%)

0.00010.0010.010.050.20.5123

0

10

20

30

40

50

60

70

80

90

100

D012

V

IN

= 12 V

V

IN

= 24 V

V

IN

= 48 V

Efficiency vs Output Current V

OUT

= 5 V,

ƒ

sw

= 500 kHz

LV14360

SNVSAZ1A – AUGUST 2017 – REVISED SEPTEMBER 2020

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties