Overview
The TPS65021RHAR is a comprehensive power management IC (PMIC) designed by Texas Instruments for applications powered by a single Li-Ion or Li-Polymer cell. This device is tailored to provide multiple power rails, making it ideal for processor-based systems that require efficient and flexible power management. The TPS65021RHAR integrates three highly efficient step-down converters and three low-dropout (LDO) voltage regulators, along with other features such as dynamic voltage management and an I2C-compatible serial interface.
Key Specifications
| Parameter | Specification |
|---|---|
| Package Type | 40-pin VQFN (RHA) |
| Package Size | 6.00 mm × 6.00 mm |
| Operating Temperature | -40°C to +85°C |
| Step-Down Converters | 3 (1.2 A, 1 A, 900 mA) |
| Efficiency of Step-Down Converters | Up to 97%, 95%, 90% respectively |
| LDO Voltage Regulators | 2 × 200 mA, input voltage range: 1.5 V to 6.5 V |
| LDO Output Voltage | Preselectable using DEFLDO1 and DEFLDO2 pins |
| Serial Interface | I2C-compatible, up to 400 kHz |
| Quiescent Current | 85 μA |
| Thermal Shutdown Protection | Yes |
Key Features
- Three highly efficient step-down converters for system voltage, memory voltage, and processor core voltage.
- Two general-purpose 200-mA LDO voltage regulators with preselectable output voltages.
- 30-mA LDO/switch for real-time clock (VRTC).
- Dynamic voltage management for processor core.
- Externally adjustable reset delay time and battery backup functionality.
- Separate enable pins for inductive converters.
- I2C-compatible serial interface for dynamic voltage scaling, interrupt masking, and LDO control.
- Low ripple PFM mode and thermal shutdown protection.
Applications
- PDA and handheld devices.
- Cellular and smart phones.
- Internet audio players and digital still cameras.
- Digital radio players.
- Split supply TMS320™ DSP family and μP solutions (e.g., OMAP™1610, OMAP1710, OMAP330, XScale Bulverde, Samsung ARM-Based Processors).
- Intel® PXA270 and similar processors.
Q & A
- What is the TPS65021RHAR used for? The TPS65021RHAR is a power management IC used in applications powered by a single Li-Ion or Li-Polymer cell, providing multiple power rails for processor-based systems.
- How many step-down converters does the TPS65021RHAR have? The TPS65021RHAR has three step-down converters with efficiencies up to 97%, 95%, and 90% respectively.
- What is the input voltage range for the LDO voltage regulators? The LDO voltage regulators operate with an input voltage range from 1.5 V to 6.5 V.
- What type of serial interface does the TPS65021RHAR use? The TPS65021RHAR uses an I2C-compatible serial interface that supports transfers up to 400 kHz.
- What is the quiescent current of the TPS65021RHAR? The quiescent current of the TPS65021RHAR is 85 μA.
- Does the TPS65021RHAR have thermal shutdown protection? Yes, the TPS65021RHAR includes thermal shutdown protection.
- What package type and size does the TPS65021RHAR come in? The TPS65021RHAR comes in a 40-pin VQFN (RHA) package, measuring 6.00 mm × 6.00 mm.
- What is the operating temperature range of the TPS65021RHAR? The operating temperature range is -40°C to +85°C.
- Can the LDO output voltages be preselected? Yes, the LDO output voltages can be preselected using the DEFLDO1 and DEFLDO2 pins.
- What are some common applications of the TPS65021RHAR? Common applications include PDAs, cellular and smart phones, internet audio players, digital still cameras, and digital radio players.
