Overview
The LM2735XMF/NOPB, produced by Texas Instruments, is a highly efficient and space-efficient DC/DC regulator designed for boost and SEPIC applications. This device is part of the LM2735 family and is known for its ease of use and minimal component count. It provides regulated DC output with fast transient response and accurate regulation, making it ideal for a variety of portable and power-sensitive applications. The LM2735XMF/NOPB operates with a high switching frequency, allowing the use of small surface mount inductors and chip capacitors, which significantly reduces the overall PCB area required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 V to 5.5 V | V |
| Output Voltage Range | 3 V to 24 V | V |
| Switch Current | 2.1 A | A |
| Switching Frequency | 1.6 MHz (LM2735-X) | kHz |
| Feedback Voltage Accuracy | ±2% | % |
| Switch ON-Resistance | 170 mΩ (SOT-23 and MSOP-PowerPAD) | mΩ |
| Quiescent Current (switching) | 7 mA (LM2735-X) | mA |
| Quiescent Current (shutdown) | 80 nA | nA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Types | SOT-23, WSON, MSOP-PowerPAD |
Key Features
- Current-mode control with internal compensation for ease of use and high-performance regulation.
- High switching frequencies of 520 kHz or 1.6 MHz, enabling the use of small surface mount inductors and chip capacitors.
- Internal soft start to reduce inrush current and thermal shutdown for protection.
- Pulse-by-pulse current limit to protect the internal NMOS switch.
- Logic high enable pin for easy shutdown control.
- Ultra-low standby current of 80 nA in shutdown mode, ideal for portable applications.
- Tiny SOT-23, WSON, and MSOP-PowerPAD packages for space savings.
Applications
- LCD display backlighting for portable applications.
- OLED panel power supply.
- USB-powered devices.
- Digital still and video cameras.
- White LED current source.
Q & A
- What is the input voltage range of the LM2735XMF/NOPB?
The input voltage range is 2.7 V to 5.5 V.
- What are the available switching frequencies for the LM2735XMF/NOPB?
The switching frequencies are 520 kHz and 1.6 MHz.
- What is the maximum switch current of the LM2735XMF/NOPB?
The maximum switch current is 2.1 A.
- What is the feedback voltage accuracy of the LM2735XMF/NOPB?
The feedback voltage accuracy is ±2%.
- What are the package types available for the LM2735XMF/NOPB?
The available package types are SOT-23, WSON, and MSOP-PowerPAD.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is 80 nA.
- Does the LM2735XMF/NOPB have internal compensation?
Yes, it has internal compensation for ease of use and high-performance regulation.
- What is the operating temperature range of the LM2735XMF/NOPB?
The operating temperature range is -40°C to 125°C.
- What are some typical applications of the LM2735XMF/NOPB?
Typical applications include LCD display backlighting, OLED panel power supply, USB-powered devices, digital still and video cameras, and white LED current source.
- Does the LM2735XMF/NOPB have thermal shutdown protection?
Yes, it has thermal shutdown protection to prevent overheating.
