Texas Instruments LMZ20501 Bedienungsanleitung

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LMZ20501 1-A Nano Module

1 Features

•Integrated inductor

•Miniature 3.5-mm × 3.5-mm × 1.75-mm package

•1-A maximum load current

•Input voltage range of 2.7 V to 5.5 V

•Adjustable output voltage range of 0.8 V to 3.6 V

•± 1% feedback tolerance over temperature

•2.4-µA (maximum) quiescent current in shutdown

•3-MHz fixed PWM switching frequency

•–40°C to 125°C junction temperature range

•Power-good flag function

•Pin-selectable switching modes

•Internal compensation and soft start

•Current limit, thermal shutdown, and UVLO

protection

•Create a custom design using the LMZ20501 with

WEBENCH

®

Power Designer

2 Applications

•Point-of-load regulation

•Space-constrained applications

3 Description

The LMZ20501 nano module regulator is an easy-

to-use synchronous step-down DC/DC converter

capable of driving up to 1 A of load from an input

of up to 5.5 V, with exceptional efficiency and output

accuracy in a very small solution size. The innovative

package contains the regulator and inductor in a

small 3.5 mm × 3.5 mm × 1.75 mm volume,

thus saving board space and eliminating the time

and expense of inductor selection. The LMZ20501

requires only five external components and has a pin-

out designed for simple, optimum PCB layout. The

device provides for an easy to use complete design

with a minimum number of external components

and the TI WEBENCH

®

design tool. TI's WEBENCH

tool includes features such as external component

calculation, electrical simulation, and WebTherm

®

.

For soldering information, see SNOA401.

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LMZ20501USIP (8)3.50 mm × 3.50 mm

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

the end of the data sheet.

V

IN

C

IN

C

OUT

R

FBT

R

FBB

LMZ20501

VIN

EN

VOUT

FB

GNDMODEPG

C

FF

V

OUT

Simplified Schematic

0

10

20

30

40

50

60

70

80

90

100

0.010.1110

Efficiency (%)

Output Current (A)

3V

4.2V

5V

C003

Typical Efficiency for V

OUT

= 1.8 V Auto Mode

LMZ20501

SNVS874E – AUGUST 2012 – REVISED SEPTEMBER 2021

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.

Produktspezifikationen