Overview
The TPS61087DRCT, produced by Texas Instruments, is a high-frequency, high-efficiency DC-DC converter designed for a wide range of applications requiring step-up voltage conversion. This device integrates a 3.2-A, 0.13-Ω power switch, enabling it to provide an output voltage up to 18.5 V. The converter features selectable switching frequencies of 650 kHz or 1.2 MHz, which allows the use of small external inductors and capacitors, thereby providing fast transient response and optimizing the application for specific conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 - 6 | V |
| Output Voltage | Up to 18.5 | V |
| Switch Current | 3.2 A | A |
| Switching Frequency | 650 kHz, 1.2 MHz | Hz |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | 10-Pin QFN and Thin QFN | |
| Package Size | 3.00 mm × 3.00 mm | mm |
| Quiescent Current (IQ) | 75 μA (typical) | A |
| Junction-to-Ambient Thermal Resistance (RθJA) | 54.7 °C/W | °C/W |
Key Features
- High-frequency, high-efficiency DC-DC converter
- Selectable switching frequencies of 650 kHz or 1.2 MHz
- Adjustable soft-start to minimize inrush current at startup
- Thermal shutdown and undervoltage lockout for protection
- External compensation for application optimization
- 10-Pin QFN and Thin QFN packages
Applications
- Handheld devices
- GPS receivers
- Digital still cameras
- Portable applications
- DSL modems
- PCMCIA cards
- TFT LCD bias supply
Q & A
- What is the input voltage range of the TPS61087DRCT?
The input voltage range is 2.5 V to 6 V. - What is the maximum output voltage of the TPS61087DRCT?
The maximum output voltage is up to 18.5 V. - What are the selectable switching frequencies of the TPS61087DRCT?
The selectable switching frequencies are 650 kHz and 1.2 MHz. - What type of packages are available for the TPS61087DRCT?
The device is available in 10-Pin QFN and Thin QFN packages. - What is the typical quiescent current of the TPS61087DRCT?
The typical quiescent current is 75 μA. - What are some key protection features of the TPS61087DRCT?
The device features thermal shutdown and undervoltage lockout. - How does the adjustable soft-start feature work?
The adjustable soft-start feature minimizes inrush current at startup using a capacitor connected to the soft-start pin. - What are some common applications for the TPS61087DRCT?
Common applications include handheld devices, GPS receivers, digital still cameras, and TFT LCD bias supply. - What is the operating temperature range of the TPS61087DRCT?
The operating temperature range is -40°C to 125°C. - How does the external compensation feature help in application optimization?
The external compensation allows for optimization of the application for specific conditions.
