Overview
The TPS65218B1RSLR is a comprehensive Power Management IC (PMIC) designed by Texas Instruments to support a wide range of applications, particularly those involving ARM Cortex-A8/A9 SoCs and FPGA. This single-chip solution integrates multiple power management functions, making it highly versatile for both portable and non-portable applications. The device operates across a temperature range of -40°C to +105°C, ensuring reliability in various industrial environments.
Key Specifications
| Parameter | Description |
|---|---|
| DCDC1, DCDC2, DCDC3 | Three adjustable step-down converters with integrated switching FETs. Default output voltages: DCDC1 and DCDC2 at 1.1 V, DCDC3 at 1.2 V. Adjustable output voltage range: 0.85 V to 1.675 V (DCDC1 and DCDC2), 0.9 V to 3.4 V (DCDC3). Maximum current: up to 1.8 A each. |
| DCDC4 | Adjustable buck-boost converter with integrated switching FET. Default output voltage: 3.3 V. Adjustable output voltage range: 1.175 V to 3.4 V. Maximum current: up to 1.6 A. |
| DCDC5, DCDC6 | Two low-quiescent current, high-efficiency step-down converters for battery backup domain. Output voltages: DCDC5 at 1 V, DCDC6 at 1.8 V. VIN range: 2.2 V to 5.5 V. |
| LDO1 | Adjustable general-purpose LDO. Default output voltage: 1.8 V. Adjustable output voltage range: 0.9 V to 3.4 V. Maximum current: up to 400 mA. |
| Load Switches (LS1, LS2, LS3) | Low-voltage load switch (LS1): 350-mA current limit, VIN range from 1.2 V to 3.6 V. 5-V load switch (LS2): 100-mA or 500-mA selectable current limit, VIN range from 4 V to 5.5 V. High-voltage load switch (LS3): 100-mA or 500-mA selectable current limit, VIN range from 1.8 V to 10 V. |
| Supervisor | Built-in supervisor function monitors DCDC1, DCDC2, DCDC3, and DCDC4 with specified tolerances. |
| I2C Interface | I2C interface with address 0x24, operating at 400 kHz. |
| Package | Available in 48-pin VQFN and HTQFP packages. |
Key Features
- Multiple integrated power management functions including step-down converters, buck-boost converter, and LDO.
- Power save mode at light load current and 100% duty cycle for lowest dropout.
- Active output-discharge when disabled for all converters and LDO.
- Low-quiescent current, high-efficiency converters for battery backup domain.
- Load switches with selectable current limits.
- Built-in supervisor function with undervoltage lockout, overtemperature warning, and shutdown.
- I2C interface for control and monitoring.
- Wide operating temperature range: -40°C to +105°C.
Applications
- Human-Machine Interface (HMI)
- Industrial Automation
- Electronic Point of Sale (ePOS)
- Test and Measurement
- Personal Navigation
Q & A
- What is the primary function of the TPS65218B1RSLR? The TPS65218B1RSLR is a Power Management IC (PMIC) designed to manage power for ARM Cortex-A8/A9 SoCs and FPGA.
- What are the default output voltages for DCDC1, DCDC2, and DCDC3? The default output voltages are 1.1 V for DCDC1 and DCDC2, and 1.2 V for DCDC3.
- What is the adjustable output voltage range for DCDC4? The adjustable output voltage range for DCDC4 is from 1.175 V to 3.4 V.
- What are the current limits for the load switches? The load switches have current limits of 350 mA (LS1), and selectable limits of 100 mA or 500 mA (LS2 and LS3).
- What is the operating temperature range of the TPS65218B1RSLR? The operating temperature range is -40°C to +105°C.
- Does the TPS65218B1RSLR have an I2C interface? Yes, it has an I2C interface operating at 400 kHz with address 0x24.
- What are some of the key applications for the TPS65218B1RSLR? Key applications include Human-Machine Interface (HMI), Industrial Automation, Electronic Point of Sale (ePOS), Test and Measurement, and Personal Navigation.
- What types of packages are available for the TPS65218B1RSLR? It is available in 48-pin VQFN and HTQFP packages.
- Does the TPS65218B1RSLR have built-in protection features? Yes, it includes undervoltage lockout, overtemperature warning, and shutdown.
- Can the output voltage of LDO1 be adjusted? Yes, the output voltage of LDO1 can be adjusted from 0.9 V to 3.4 V.
