Overview
The TPS63700DRCR from Texas Instruments is an adjustable, inverting DC/DC converter designed to generate a negative output voltage down to –15 V with output currents up to 360 mA. This device is particularly suited for portable battery-powered equipment due to its high efficiency of up to 84%. The input voltage range of 2.7 V to 5.5 V allows it to be powered directly from a Li-ion battery, 3-cell NiMH/NiCd batteries, or standard 3.3-V or 5-V supply rails.
The TPS63700 operates with a fixed-frequency pulse width modulation (PWM) control topology and features internal current limit, overvoltage protection, and thermal shutdown for enhanced reliability under fault conditions. The device's small 3-mm × 3-mm SON-10 package and high switching frequency of typically 1.4 MHz enable the use of small external components, making it ideal for compact designs.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage Range | Down to –15 V (adjustable) |
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Current | Up to 360 mA |
| Switch Current Limit | 1000 mA (typical) |
| Efficiency | Up to 84% |
| Switching Frequency | Typically 1.4 MHz |
| Thermal Shutdown | Yes |
| Output Overvoltage Protection | Typically –19 V |
| Shutdown Current | 1.5 μA |
| Package | 3-mm × 3-mm SON-10 (DRC) |
| Operating Temperature Range | –40°C to 125°C |
Key Features
- Adjustable output voltage down to –15 V
- Input voltage range of 2.7 V to 5.5 V
- Up to 360 mA output current
- Typical switch current limit of 1000 mA
- High efficiency of up to 84%
- Typical 1.4-MHz fixed-frequency PWM operation
- Thermal shutdown and overvoltage protection for reliability
- Low shutdown current of 1.5 μA
- Compact 3-mm × 3-mm SON-10 package
Applications
- Generic negative voltage supply
- Small-to-medium size OLED displays
- Bias supply
- Portable battery-powered equipment
Q & A
- What is the output voltage range of the TPS63700DRCR?
The output voltage range is adjustable down to –15 V.
- What is the input voltage range for the TPS63700DRCR?
The input voltage range is from 2.7 V to 5.5 V.
- What is the maximum output current of the TPS63700DRCR?
The maximum output current is up to 360 mA.
- What is the typical switching frequency of the TPS63700DRCR?
The typical switching frequency is 1.4 MHz.
- Does the TPS63700DRCR have thermal shutdown and overvoltage protection?
- What is the shutdown current of the TPS63700DRCR?
The shutdown current is 1.5 μA.
- In what package is the TPS63700DRCR available?
- What are some common applications of the TPS63700DRCR?
- What is the operating temperature range of the TPS63700DRCR?
- Is the TPS63700DRCR suitable for portable battery-powered equipment?
