Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

LM2733

ACTIVE

0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
TLV61047 ACTIVE 20VIN, 28VOUT, 2.2A non-synchronous boost converter with SOT23-5 DDC package Wider input voltage and higher efficiency.
Same functionality with different pin-out to the compared device.
TPS61376 ACTIVE 25-V, 4.5-A, boost converter with 2.5% accuracy input average current limit & true disconnection TPS61376 has adjustable input current limited and true disconnection feature

LM2733

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Boost Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) 40 Vout (min) (V) 3 Switch current limit (typ) (A) 1.5 Features Enable, Light-load efficiency, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0011 Duty cycle (max) (%) 96
Rating Catalog Topology Boost Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) 40 Vout (min) (V) 3 Switch current limit (typ) (A) 1.5 Features Enable, Light-load efficiency, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0011 Duty cycle (max) (%) 96
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • 40-V DMOS FET switch
  • 1.6-MHz (“X”), 0.6 MHz (“Y”) Switching frequency
  • Low RDS(ON) DMOS FET
  • Switch current up to 1 A
  • Wide input voltage 2.7 V to 14 V
  • Low shutdown current (< 1 µA)
  • 5-Pin SOT-23 package
  • Uses tiny capacitors and inductors
  • Cycle-by-cycle current limiting
  • Internally compensated
  • 40-V DMOS FET switch
  • 1.6-MHz (“X”), 0.6 MHz (“Y”) Switching frequency
  • Low RDS(ON) DMOS FET
  • Switch current up to 1 A
  • Wide input voltage 2.7 V to 14 V
  • Low shutdown current (< 1 µA)
  • 5-Pin SOT-23 package
  • Uses tiny capacitors and inductors
  • Cycle-by-cycle current limiting
  • Internally compensated

The LM2733 switching regulators are current-mode boost converters operating fixed frequency of 1.6 MHz (“X” option) and 600 kHz (“Y” option).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1-A switch and use of small inductors and capacitors, results in the industry’s highest power density. The 40-V internal switch makes these solutions perfect for boosting to voltages of 16 V or greater.

These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

The LM2733 switching regulators are current-mode boost converters operating fixed frequency of 1.6 MHz (“X” option) and 600 kHz (“Y” option).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1-A switch and use of small inductors and capacitors, results in the industry’s highest power density. The 40-V internal switch makes these solutions perfect for boosting to voltages of 16 V or greater.

These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.
filter Find other DC/DC converters
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
LM2735-Q1 ACTIVE 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified 2.1-A/ 24-V Internal switch in SOT23, LLP, and EMSOP packages.
LM2731 ACTIVE 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23 1.5-A / 22-V Internal switch in an SOT-23 package.
LM2735 ACTIVE 520kHz/1.6MHz space efficient boost and SEPIC DC-DC regulator 2.1-A/ 24-V Internal switch in SOT23, LLP, and EMSOP packages.

Technical documentation

No results found. Please clear your search and try again.
View all 3
Top documentation Type Title Format options Date
* Data sheet LM2733 0.6- and 1.6-MHz Boost Converters With 40-V Internal FET Switch in SOT-23 datasheet (Rev. G) PDF | HTML May 3, 2019
Application note Extend the Output Voltage Range With a Coupling Inductor Sep 20, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LM2733YEVAL — 0.6 1.6 MHz Boost Converters with 40V Internal FET Switch Evaluation Module

LM2733Y 0.6MHz Boost Converter With 40V Internal FET Switch

User guide: PDF
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Reference design

PMP10703 — 9V to 14Vin, Isolated +/- 15V/100mA Output Flyback Reference Design Solution with LM2733

The PMP10703.1 is an isolated dual output flyback solution which accepts an input voltage of 9V to 14Vin and provides a ±15V output to power the amplifier. With tiny size of the LM2733 and primary control, the reference design’s total solution size is very small and could be used for (...)

Supported products & hardware
Reference design

PMP31257 — Split-rail converter with configurable dual, positive and negative outputs reference design

The LM2733 boost converter reference design generates a positive and negative output. An analog DC input voltage can be used to configure the outputs. Both outputs can be dynamically changed using an external voltage.
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos