LMZ20501 Module Datasheet

LMZ20501 Datasheet PDF, Equivalent


Part Number

LMZ20501

Description

1-A Nano Module

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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LMZ20501
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LMZ20501
SNVS874D – AUGUST 2012 – REVISED AUGUST 2018
LMZ20501 1-A Nano Module
1 Features
1 Integrated Inductor
• Miniature 3.5 mm × 3.5 mm × 1.75 mm Package
• 1A 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(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMZ20501
USIP (8)
3.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
CIN
Simplified Schematic
EN VOUT
VIN
LMZ20501
GND MODE
FB
PG
RFBT
CFF
RFBB
VOUT
COUT
Typical Efficiency for VOUT = 1.8 V Auto Mode
100 3V
90 4.2V
80 5V
70
60
50
40
30
20
10
0
0.01
0.1 1
Output Current (A)
10
C003
1
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.

LMZ20501
LMZ20501
SNVS874D – AUGUST 2012 – REVISED AUGUST 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 6
6.6 System Characteristics ............................................ 7
6.7 Typical Characteristics .............................................. 8
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ......................................... 9
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 13
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Application ................................................. 16
8.3 Do's and Don'ts ...................................................... 23
9 Power Supply Recommendations...................... 23
10 Layout................................................................... 24
10.1 Layout Guidelines ................................................. 24
10.2 Layout Example .................................................... 25
10.3 Soldering Information ............................................ 25
11 Device and Documentation Support ................. 27
11.1 Device Support...................................................... 27
11.2 Documentation Support ........................................ 27
11.3 Receiving Notification of Documentation Updates 28
11.4 Community Resources.......................................... 28
11.5 Trademarks ........................................................... 28
11.6 Electrostatic Discharge Caution ............................ 28
11.7 Glossary ................................................................ 28
12 Mechanical, Packaging, and Orderable
Information ........................................................... 28
12.1 Tape and Reel Information ................................... 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (April 2015) to Revision D
Page
• Deleted Simple Switcher branding; added links for WEBENCH ........................................................................................... 1
Changes from Revision B (December 2014) to Revision C
Page
• Added package option addendum manually ......................................................................................................................... 1
Changes from Revision A (November 2014) to Revision B
Page
• Changed Device Information and ESD Rating tables, Feature Description, Device Functional Modes, Application
and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and
Mechanical, Packaging, and Orderable Information sections; moved some curves to Application Curves section .............. 1
Changes from Original (September 2013) to Revision A
Page
• Added full document. ............................................................................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: LMZ20501
Copyright © 2012–2018, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity LMZ20501 SNVS874D – AUGUST 20 12 – REVISED AUGUST 2018 LMZ20501 1-A Nano Module 1 Features •1 Integrate d Inductor • Miniature 3.5 mm × 3.5 mm × 1.75 mm Package • 1A Maximum Lo ad Current • Input Voltage Range of 2 .7 V to 5.5 V • Adjustable Output Vol tage 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 Junct ion Temperature Range • Power Good Fl ag Function • Pin-Selectable Switchin g Modes • Internal Compensation and S oft Start • Current Limit, Thermal Sh utdown, and UVLO Protection • Create a Custom Design Using the LMZ20501 With WEBENCH® Power Designer 2 Application s • Point-of-Load Regulation • Spac e-Constrained Applications 3 Descripti on The LMZ20501 nano module regulator i s an easy-touse synchronous step-down DC/DC converter capable of driving up to 1 A of load from an input of .
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