IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments LMR33630ADDA | Demoboard LMR33630ADDAEVM

SIMPLE SWITCHER® 3.8V to 36V, 3A Synchronous Buck Converter With Ultra-Low EMI

Overview

TopologyBuck Converter
Input voltage3.3-36 V
Switching frequency400-2100 kHz
Output 15 V / 3 A
IC revisionA

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.

Features

  • Functional Safety-Capable
  • Documentation available to aid functional safety system design
  • Configured for rugged industrial applications
  • Input voltage range: 3.8 V to 36 V
  • Output voltage range: 1 V to 24 V
  • Output current: 3 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
  • Low EMI and switching noise
  • HotRod™ package
  • Parallel input current paths
  • High power conversion at all loads
  • Peak efficiency > 95%
  • Low operating quiescent current of 25 µA
  • Flexible system interface
  • Power-good flag and precision enable
  • Use TPSM53603 module for faster time to market
  • Create a custom design using the LMR33630 with the WEBENCH Power Designer

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
Material
Qmin.
LR(µH)
fres(MHz)
Samples
WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance1 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance0.5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Q-Factor [1]600 
WE-HCC SMT High Current Cube Inductor, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Size1090 
Operating Temperature -40 °C up to +125 °C
Length10.9 mm
Width10 mm
Height9.3 mm
Inductance8.2 µH
Performance Rated Current8.9 A
Saturation Current @ 10%9.3 A
Saturation Current @ 30%12.5 A
DC Resistance15 mΩ
MaterialFerrite 
Rated Inductance2.8 µH
Self Resonant Frequency36 MHz