Texas Instruments TPS61288 – High-Efficiency Step-Up Converter with Integrated 10-A Switch
O TPS61288 de Fabricante de CI is a high-current synchronous step-up (boost) converter designed to deliver high efficiency and low EMI performance for systems powered by single-cell lithium-ion batteries or low-voltage rails. It integrates a 10-A power switch and supports up to 12.7V output, providing designers with a compact yet powerful solution for portable, industrial, or battery-powered applications.
Electrical Characteristics and Performance Parameters
| Parâmetro | Valor | Unidade |
|---|---|---|
| Gama de tensão de entrada | 2.7 to 12 | V |
| Gama de tensão de saída | Adjustable, up to 12.7 | V |
| Limite de corrente do interrutor | 10 | A |
| Efficiency (Peak) | 96+ | % |
| Quiescent Current (IQ) | ~50 | µA |
| Frequency | Adjustable, 200 kHz – 2.2 MHz | – |
| Embalagem | QFN-18 (3.5mm × 3.5mm) | – |
Key Features and Benefits
- Wide Input Range: Accepts 2.7V to 12V for compatibility with a wide range of battery chemistries and power sources.
- Integrated Power Switch: On-chip 10-A MOSFET reduces external components, enabling compact, high-current designs.
- Power Save Mode: Improves light-load efficiency and extends battery life in portable applications.
- Programmable Frequency: Adjusts switching speed to optimize EMI or reduce component size based on system requirements.
- Complete Protection Suite: Includes soft start, OVP, UVLO, thermal shutdown, and short-circuit protection for robust and safe operation.
Aplicações típicas
- Portable Industrial Equipment
- Battery-Powered Test Instruments
- Smart Energy Metering
- Drone and Robotics Power Modules
- Backup Power Supplies for SSD/Memory
Perguntas frequentes (FAQ)
Can the TPS61288 provide stable output at 5V from a 3.3V source?
Yes, the converter is specifically designed to step-up lower voltages to higher levels, such as generating 5V from lithium-ion battery rails.
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What protection features are built into this device?
It includes overvoltage protection (OVP), undervoltage lockout (UVLO), overtemperature shutdown, and a hiccup mode for short circuit events.
Is this suitable for noise-sensitive applications?
With programmable frequency and low EMI switching topology, the TPS61288 is an excellent choice for noise-sensitive industrial or medical applications.
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Does it support PFM or PWM modes?
Yes, it supports both PWM and Power Save Mode (PFM-like) to adapt power efficiency under different load conditions.
What type of package does it come in?
The device is available in a space-saving 3.5mm × 3.5mm QFN-18 package ideal for compact, high-density PCB layouts.
