LM2735XSDX/NOPB
Active520KHZ/1.6MHZ SPACE EFFICIENT BOOST AND SEPIC DC-DC REGULATOR
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LM2735XSDX/NOPB
Active520KHZ/1.6MHZ SPACE EFFICIENT BOOST AND SEPIC DC-DC REGULATOR
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2735XSDX/NOPB |
|---|---|
| Current - Output | 2.1 A |
| Frequency - Switching | 1.6 MHz |
| Function | Step-Up, Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Supplier Device Package | 6-WSON (3x3) |
| Synchronous Rectifier | False |
| Topology | Flyback, SEPIC, Boost |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.7 V |
| Voltage - Output (Max) | 24 V |
LM2735-Q1 Series
520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Supplier Device Package | Output Configuration | Package / Case | Current - Output | Voltage - Input (Min) [Min] | Topology | Synchronous Rectifier | Number of Outputs | Mounting Type | Output Type | Function | Voltage - Output (Max) | Frequency - Switching | Voltage - Input (Max) [Max] | Grade | Qualification | Regulator Topology | Voltage - Input [Max] | Voltage - Input [Min] | Utilized IC / Part | Board Type | Voltage - Output | Main Purpose | Supplied Contents | Outputs and Type | Outputs and Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | -40 °C | 125 ¯C | SOT-23-5 | Positive | SC-74A SOT-753 | 2.1 A | 2.7 V | Boost Flyback SEPIC | 1 | Surface Mount | Adjustable | Step-Up Step-Up/Step-Down | 24 V | 1.6 MHz | 5.5 V | Automotive | AEC-Q100 | |||||||||||
Texas Instruments | -40 °C | 125 ¯C | SOT-23-5 | Positive | SC-74A SOT-753 | 2.1 A | 2.7 V | Boost Flyback SEPIC | 1 | Surface Mount | Adjustable | Step-Up Step-Up/Step-Down | 24 V | 1.6 MHz | 5.5 V | Automotive | AEC-Q100 | |||||||||||
 Texas Instruments | 500 mA | 1.6 MHz | Boost | 5.5 V | 3 V | LM2735 | Fully Populated | 3.3 V | DC/DC Step Up | Board(s) | Non-Isolated | 1 | ||||||||||||||||
Texas Instruments | -40 °C | 125 ¯C | 6-WSON (3x3) | Positive | 2.1 A | 2.7 V | Boost Flyback SEPIC | 1 | Surface Mount | Adjustable | Step-Up Step-Up/Step-Down | 24 V | 1.6 MHz | 5.5 V | ||||||||||||||
 Texas Instruments | -40 °C | 125 ¯C | 6-WSON (3x3) | Positive | 2.1 A | 2.7 V | Boost Flyback SEPIC | 1 | Surface Mount | Adjustable | Step-Up Step-Up/Step-Down | 24 V | 520 kHz | 5.5 V | Automotive | AEC-Q100 | ||||||||||||
 Texas Instruments | 500 mA | 1.6 MHz | Boost | 5.5 V | 3 V | LM2735 | Fully Populated | 12 V | DC/DC Step Up | Board(s) | Non-Isolated | 1 | ||||||||||||||||
 Texas Instruments | 500 mA | 1.6 MHz | Boost | 5.5 V | 3 V | LM2735 | Fully Populated | 12 V | DC/DC Step Up | Board(s) | Non-Isolated | 1 | ||||||||||||||||
Texas Instruments | 500 mA | 1.6 MHz | Boost | 5.5 V | 3 V | LM2735 | Fully Populated | 12 V | DC/DC Step Up | Board(s) | Non-Isolated | 1 | ||||||||||||||||
 Texas Instruments | -40 °C | 125 ¯C | SOT-23-5 | Positive | SC-74A SOT-753 | 2.1 A | 2.7 V | Boost Flyback SEPIC | 1 | Surface Mount | Adjustable | Step-Up Step-Up/Step-Down | 24 V | 520 kHz | 5.5 V | |||||||||||||
 Texas Instruments | 500 mA | 520 kHz | Boost | 5.5 V | 3 V | LM2735 | Fully Populated | 12 V | DC/DC Step Up | Board(s) | Non-Isolated | 1 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 4500 | $ 1.09 | |
| 9000 | $ 1.05 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.61 | |
| 100 | $ 1.41 | |||
| 250 | $ 0.99 | |||
| 1000 | $ 0.80 | |||
Description
General part information
LM2735-Q1 Series
The LM2735-Q1 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%. The device can be used as a post-boost, boosting from the main automotive system 3.3V rail to power CAN transceivers and other circuits requiring 5V. The 24V output capability allows the LM2735-Q1 to power audio amplifiers, antenna, power-over-coax (PoC), and automotive audio bus (A2B) devices as well.
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 and WSON 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-Q1 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%. The device can be used as a post-boost, boosting from the main automotive system 3.3V rail to power CAN transceivers and other circuits requiring 5V. The 24V output capability allows the LM2735-Q1 to power audio amplifiers, antenna, power-over-coax (PoC), and automotive audio bus (A2B) devices as well.
Documents
Technical documentation and resources