Overview
The TPS61087DRCR is a high-frequency, high-efficiency DC-DC converter produced by Texas Instruments. This device is designed with an integrated 3.2-A, 0.13-Ω power switch, enabling it to provide an output voltage up to 18.5 V. The converter features a selectable switching frequency of either 650 kHz or 1.2 MHz, which allows for the use of small external inductors and capacitors, thereby providing a fast transient response. The TPS61087DRCR is optimized for various portable and high-performance applications, offering adjustable soft-start, thermal shutdown, and undervoltage lockout features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 - 6 | V |
| Output Voltage Range | 3 - 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 |
| Junction-to-Ambient Thermal Resistance | 54.7 - 55.3 | °C/W |
Key Features
- High-frequency, high-efficiency DC-DC converter
- Integrated 3.2-A, 0.13-Ω power switch
- Selectable switching frequency 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-specific 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 TPS61087DRCR?
The input voltage range is 2.5 V to 6 V. - What is the maximum output voltage of the TPS61087DRCR?
The maximum output voltage is 18.5 V. - What are the selectable switching frequencies of the TPS61087DRCR?
The selectable switching frequencies are 650 kHz and 1.2 MHz. - What is the switch current capability of the TPS61087DRCR?
The switch current capability is 3.2 A. - What protection features does the TPS61087DRCR have?
The device features thermal shutdown and undervoltage lockout. - What types of packages are available for the TPS61087DRCR?
The device is available in 10-Pin QFN and Thin QFN packages. - What is the operating temperature range of the TPS61087DRCR?
The operating temperature range is -40°C to 125°C. - 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 TPS61087DRCR?
Common applications include handheld devices, GPS receivers, digital still cameras, portable applications, DSL modems, PCMCIA cards, and TFT LCD bias supply. - What are the key considerations for selecting an inductor for the TPS61087DRCR?
The key considerations include the saturation current of the inductor, which should be higher than the peak switch current, and the inductor DC resistance, which affects efficiency.
