Overview
The TPS65021RHATG4 is an integrated power management IC (PMIC) designed by Texas Instruments. This device is tailored for applications powered by a single Li-Ion or Li-Polymer cell and requires multiple power rails. It is particularly suited for processor-based systems, providing efficient power management for core voltage, peripheral, I/O, and memory rails.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | 40-pin VQFN (RHA) |
| Pins | 40 |
| Operating Temperature Range (°C) | -40 to 85 |
| Step-Down Converters | 3 (1.2-A for System Voltage, 1-A for Memory Voltage, 900-mA for Processor Core) |
| LDO Voltage Regulators | 2 × 200-mA General-Purpose LDO, 1 × 30-mA LDO for Real-Time Clock |
| I2C Interface | Compatible with fast and standard mode I2C, up to 400 kHz |
| Quiescent Current | 85 µA |
| Thermal Shutdown Protection | Yes |
| Package Dimensions | 6-mm × 6-mm |
Key Features
- Three highly efficient step-down converters: 1.2-A for system voltage, 1-A for memory voltage, and 900-mA for processor core.
- Two general-purpose 200-mA LDO voltage regulators and one 30-mA LDO for real-time clock.
- Dynamic voltage management for processor core.
- Preselectable LDO voltage using two digital input pins.
- Externally adjustable reset delay time.
- Battery backup functionality.
- Separate enable pins for inductive converters.
- I2C-compatible serial interface for dynamic voltage scaling, masking interrupts, and setting LDO output voltages.
- Low-ripple PFM mode.
- Thermal shutdown protection.
Applications
The TPS65021RHATG4 is designed for use in various processor-based systems that require multiple power rails, such as handheld devices, portable electronics, and other battery-powered applications. It is particularly useful in systems that need efficient power management to optimize battery life and performance.
Q & A
- What is the TPS65021RHATG4? The TPS65021RHATG4 is an integrated power management IC (PMIC) from Texas Instruments.
- What types of power converters does the TPS65021RHATG4 include? It includes three step-down converters and three LDO voltage regulators.
- What is the operating temperature range of the TPS65021RHATG4? The operating temperature range is -40°C to 85°C.
- What is the package type and pin count of the TPS65021RHATG4? It is packaged in a 40-pin VQFN (RHA) package.
- Does the TPS65021RHATG4 support I2C interface? Yes, it supports both fast and standard mode I2C up to 400 kHz.
- What is the quiescent current of the TPS65021RHATG4? The quiescent current is 85 µA.
- Does the TPS65021RHATG4 have thermal shutdown protection? Yes, it includes thermal shutdown protection.
- How can the LDO output voltages be set? The LDO output voltages can be set using two digital input pins (DEFLDO1 and DEFLDO2).
- What is the purpose of the dynamic voltage management feature? The dynamic voltage management feature is used to optimize the voltage supply for the processor core.
- Is the TPS65021RHATG4 suitable for battery-powered devices? Yes, it is designed for use in battery-powered devices and includes features like battery backup functionality.
