Product details

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 3 Vout (Max) (V) 24 Switch current limit (Typ) (A) 2.25 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 520 Switching frequency (Max) (kHz) 1600 Iq (Typ) (mA) 7 Features Enable Duty cycle (Max) (%) 99 Operating temperature range (C) -40 to 125 Rating Catalog
Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 3 Vout (Max) (V) 24 Switch current limit (Typ) (A) 2.25 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 520 Switching frequency (Max) (kHz) 1600 Iq (Typ) (mA) 7 Features Enable Duty cycle (Max) (%) 99 Operating temperature range (C) -40 to 125 Rating Catalog
HVSSOP (DGN) 8 9 mm² 3 x 3 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (NGG) 6 9 mm² 3 x 3
  • Input Voltage Range: 2.7 V to 5.5 V
  • Output Voltage Range: 3 V to 24 V
  • 2.1-A Switch Current Over Full Temperature Range
  • Current-Mode Control
  • Logic High Enable Pin
  • Ultra-Low Standby Current of 80 nA in Shutdown
  • 170-mΩ NMOS Switch
  • ±2% Feedback Voltage Accuracy
  • Ease-of-Use, Small Total Solution Size
    • Internal Soft Start
    • Internal Compensation
    • Two Switching Frequencies
    • 520 kHz (LM2735-Y)
    • 1.6 MHz (LM2735-X)
    • Uses Small Surface Mount Inductors and Chip Capacitors
    • Tiny SOT-23, WSON, and MSOP-PowerPAD™ Packages
  • Create a Custom Design Using the LM2735 With WEBENCH® Power Designer
  • Input Voltage Range: 2.7 V to 5.5 V
  • Output Voltage Range: 3 V to 24 V
  • 2.1-A Switch Current Over Full Temperature Range
  • Current-Mode Control
  • Logic High Enable Pin
  • Ultra-Low Standby Current of 80 nA in Shutdown
  • 170-mΩ NMOS Switch
  • ±2% Feedback Voltage Accuracy
  • Ease-of-Use, Small Total Solution Size
    • Internal Soft Start
    • Internal Compensation
    • Two Switching Frequencies
    • 520 kHz (LM2735-Y)
    • 1.6 MHz (LM2735-X)
    • Uses Small Surface Mount Inductors and Chip Capacitors
    • Tiny SOT-23, WSON, and MSOP-PowerPAD™ Packages
  • Create a Custom Design Using the LM2735 With WEBENCH® Power Designer

The LM2735 device is an easy-to-use, space-efficient 2.1-A low-side switch regulator, ideal for Boost and SEPIC DC/DC regulation. The device provides all the active functions to provide local DC-DC conversion with fast-transient response and accurate regulation in the smallest PCB area. Switching frequency is internally set to either 520 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductor and chip capacitors, while providing efficiencies of up to 90%. Current-mode control and internal compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating conditions. External shutdown features an ultra-low standby current of 80 nA, ideal for portable applications. Tiny SOT-23, WSON, and MSOP-PowerPAD packages provide space savings. Additional features include internal soft start, circuitry to reduce inrush current, pulse-by-pulse current limit, and thermal shutdown.

The LM2735 device is an easy-to-use, space-efficient 2.1-A low-side switch regulator, ideal for Boost and SEPIC DC/DC regulation. The device provides all the active functions to provide local DC-DC conversion with fast-transient response and accurate regulation in the smallest PCB area. Switching frequency is internally set to either 520 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductor and chip capacitors, while providing efficiencies of up to 90%. Current-mode control and internal compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating conditions. External shutdown features an ultra-low standby current of 80 nA, ideal for portable applications. Tiny SOT-23, WSON, and MSOP-PowerPAD packages provide space savings. Additional features include internal soft start, circuitry to reduce inrush current, pulse-by-pulse current limit, and thermal shutdown.

Download

Similar products you might be interested in

open-in-new Compare products
Pin-for-pin with same functionality to the compared device.
LM2735-Q1 ACTIVE 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified AEC-Q100 qualified for automotive applications.

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 11
Type Title Date
* Data sheet LM2735 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC/DC Regulator datasheet (Rev. I) 05 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Design of UVLO for LM27313 (Rev. B) 08 Apr 2014
User guide AN-1668 LM2735Y 8-Pin eMSOP Demo Board (Rev. B) 25 Apr 2013
User guide AN-1660 LM2735Y 6-Pin LLP Demo Board (Rev. A) 24 Apr 2013
User guide AN-1664 LM2735X 5-Pin SOT23 Demo Board (Rev. B) 24 Apr 2013
User guide AN-1665 LM2735Y 5-Pin SOT23 Demo Board (Rev. B) 24 Apr 2013
User guide AN-1666 LM2735X 6-Pin LLP Demo Board (Rev. A) 24 Apr 2013
User guide AN-1667 LM2735X 8-Pin eMSOP Demo Board (Rev. A) 24 Apr 2013
Application note AN-1658 LM2735 BOOST and SEPIC DC-DC Regulator (Rev. A) 23 Apr 2013
User guide High Efficiency Portable Media Player (PMP) Dock Station User Guide 27 Jan 2012

Design & development

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

Evaluation board

EVMX777G-01-20-00 — J6Entry/RSP Infotainment (CPU+Display+JAMR3) Evaluation Module

The J6Entry/RSP EVM is an evaluation platform designed to speed up development efforts and reduce time to market for applications such as Infotainment, reconfigurable Digital Cluster or Integrated Digital Cockpit.

The main CPU board integrates these key peripherals such as Ethernet or HDMI, while the (...)

Evaluation board

EVMX777LCDTS-V1-0 — 1280 X 800 Display and Touchscreen Daughter Board

The Display Application Board is an application board to be used as a display plus multi-touch touch screen daughter board used on the J6Entry, RSP and TDA2E-17 CPU EVM boards.
Evaluation board

LM2735SD3.3EVAL — 520kHz 1.6MHz - Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X SEPIC 6-Pin LLP Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 3.3V output for up to 500mA load current using the LM2735X 1.6MHz DC-DC switching converter. This is a 2- layer board using the bottom layer as a ground plane.

In stock
Limit: 5
Evaluation board

LM2735XMFEVAL — 520kHz 1.6MHz - Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 5-Pin SOT23 Demo Board

The demo board included in this shipment uses the LM2735X 1.6MHz DC-DC switching regulator that converts 3V to 5.5V input to 12V output for up to 500mA load current depending on Vin. This is a 2-layer board using the bottom layer as a Ground plane.

In stock
Limit: 5
Evaluation board

LM2735XMYEVAL — 520kHz 1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 8-Pin eMSOP Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter in the 8-Pin eMSOP package. This is a 2-layer board using the bottom layer as a Ground plane.

In stock
Limit: 5
Evaluation board

LM2735XSDEVAL — 520kHz 1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 6-Pin LLP Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735X 1.6MHz DC-DC switching converter. This is a 2-layer board using the bottom layer as a ground plane.

In stock
Limit: 5
Evaluation board

LM2735YMFEVAL — 520kHz 1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 5-Pin SOT23 Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter. This is a 2-layer board using the bottom layer as a ground plane.

In stock
Limit: 5
Evaluation board

LM2735YMYEVAL — 520kHz 1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 8-Pin eMSOP Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735X 1.6MHz DC-DC switching converter in the 8-Pin eMSOP package. This is a 2-layer board using the bottom layer as a ground plane.

In stock
Limit: 5
Evaluation board

LM2735YSDEVAL — 520kHz 1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 6-Pin LLP Demo Board

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter. This is a 2-layer board using the bottom layer as a Ground plane.

In stock
Limit: 5
Simulation model

LM2735Y Unencrypted PSpice Transient Model Package (Rev. A)

SNVM297A.ZIP (166 KB) - PSpice Model
Simulation model

Unencrypted LM2735Y PSpice Average Model (Rev. A)

SNVM298A.ZIP (44 KB) - PSpice Model
Simulation model

LM2735X Unencrypted PSpice Transient Model Package (Rev. A)

SNVM299A.ZIP (179 KB) - PSpice Model
Simulation model

LM2735X Unencrypted PSpice Transient Model

SNVM838.ZIP (2 KB) - PSpice Model
Simulation model

LM2735Y Unencrypted PSpice Average Model

SNVM839.ZIP (1 KB) - PSpice Model
Simulation model

LM2735Y Unencrypted PSpice Transient Model

SNVM840.ZIP (2 KB) - PSpice Model
Simulation model

Unencrypted LM2735X PSpice Average Model (Rev. A)

SNVMAG3A.ZIP (46 KB) - PSpice Model
Simulation model

LM2735X Unencrypted PSpice Average Model

SNVMAG4.ZIP (1 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Calculation tool

FLYBUCK-FLYBACK-DESIGN-CALC — Fly-Buck and Flyback Topology Selector

This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
Reference designs

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Package Pins Download
HVSSOP (DGN) 8 View options
SOT-23 (DBV) 5 View options
WSON (NGG) 6 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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

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