900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

LMR33620 Datasheet Preview

LMR33620 Datasheet

synchronous step-down voltage converter

No Preview Available !

Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
LMR33620
SNVSAW1C – FEBRUARY 2018 – REVISED MARCH 2019
LMR33620 SIMPLE SWITCHER® 3.8-V to 36-V, 2-A
synchronous step-down voltage converter
1 Features
1 Configured for rugged industrial applications
– Input voltage range: 3.8 V to 36 V
– Output voltage range: 1 V to 24 V
– Output current: 2 A
– 75-mΩ/50-mΩ RDS-ON power MOSFETs
– Peak-current-mode control
– Short minimum on-time of 68 ns
– Frequency: 400 kHz, 1.4 MHz, 2.1 MHz
– Junction temperature range –40°C to +125°C
– Low EMI and low switching noise
– Integrated compensation network
• High-efficiency solution
– Peak efficiency > 95%
– Low shutdown quiescent current of 5 µA
– Low operating quiescent current of 25 µA
• Flexible system interface
– Power-good flag and precision enable
• Create a custom design using the LMR33620 with
the WEBENCH® Power Designer
2 Applications
• Motor drive systems: drones, AC inverters,
VF drives, servos
• Factory and building automation systems:
PLC CPU, HVAC control, elevator control
• General purpose wide VIN power supplies
VIN
CIN
Simplified Schematic
BOOT
VIN
EN SW
PGND
CBOOT
L1
VOUT
COUT
CVCC
VCC
PG
FB
AGND
RFBT
RFBB
1
3 Description
The LMR33620 SIMPLE SWITCHER® regulator is an
easy-to-use, synchronous, step-down DC/DC
converter that delivers best-in-class efficiency for
rugged industrial applications. The LMR33620 drives
up to 2 A of load current from an input of up to 36 V.
The LMR33620 provides high light load efficiency and
output accuracy in a very small solution size.
Features such as a power-good flag and precision
enable provide both flexible and easy-to-use solutions
for a wide range of applications. The LMR33620
automatically folds back frequency at light load to
improve efficiency. Integration eliminates most
external components and provides a pinout designed
for simple PCB layout. Protection features include
thermal shutdown, input undervoltage lockout, cycle-
by-cycle current limit, and hiccup short-circuit
protection. The LMR33620 is available in an 8-pin
HSOIC package and in a 12-pin 3 mm × 2 mm VQFN
package with wettable flanks. This device is also
available in an AEC-Q100-qualified version.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMR33620
HSOIC (8)
5.00 mm × 4.00 mm
LMR33620
VQFN (12)
3.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
space
space
space
Efficiency vs Output Current
VOUT = 5 V, 400 kHz, VQFN
100
95
90
85
80
75
70
65
60
55
0.01
0.1 1
Output Current (A)
8V
12V
24V
36V
10
C024
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.




etcTI

LMR33620 Datasheet Preview

LMR33620 Datasheet

synchronous step-down voltage converter

No Preview Available !

LMR33620
SNVSAW1C – FEBRUARY 2018 – REVISED MARCH 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 6
7.1 Absolute Maximum Ratings ...................................... 6
7.2 ESD Ratings.............................................................. 6
7.3 Recommended Operating Conditions ...................... 6
7.4 Thermal Information .................................................. 7
7.5 Electrical Characteristics........................................... 7
7.6 Timing Characteristics............................................... 9
7.7 System Characteristics ........................................... 10
7.8 Typical Characteristics ............................................ 11
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 17
9 Application and Implementation ........................ 20
9.1 Application Information............................................ 20
9.2 Typical Application .................................................. 20
9.3 Do's and Don'ts ....................................................... 32
10 Power Supply Recommendations ..................... 33
11 Layout................................................................... 34
11.1 Layout Guidelines ................................................. 34
11.2 Layout Example .................................................... 36
12 Device and Documentation Support ................. 38
12.1 Device Support .................................................... 38
12.2 Documentation Support ........................................ 38
12.3 Receiving Notification of Documentation Updates 38
12.4 Community Resources.......................................... 38
12.5 Trademarks ........................................................... 39
12.6 Electrostatic Discharge Caution ............................ 39
12.7 Glossary ................................................................ 39
13 Mechanical, Packaging, and Orderable
Information ........................................................... 39
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (June 2018) to Revision C
Page
• Changed heading to device option ........................................................................................................................................ 3
• Changed Minimum peak current to reflect ATE data. ............................................................................................................ 8
• Changed zero cross current to reflect ATE data. ................................................................................................................... 8
• Changed to new current limit equation................................................................................................................................. 16
• Added new de-rate curve .................................................................................................................................................... 26
Changes from Revision A (April 2018) to Revision B
Page
• Changed block diagram to fix drawing error......................................................................................................................... 12
• Added graphs for Typical Switching Frequency in Dropout Mode ...................................................................................... 19
Changes from Original (February 2018) to Revision A
Page
• Added WSON information throughout data sheet .................................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: LMR33620
Copyright © 2018–2019, Texas Instruments Incorporated


Part Number LMR33620
Description synchronous step-down voltage converter
Maker etcTI
PDF Download

LMR33620 Datasheet PDF






Similar Datasheet

1 LMR33620 synchronous step-down voltage converter
etcTI





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy