Overview
The TPS65021RHAT, produced by Texas Instruments, is an integrated power management IC (PMIC) designed for applications powered by a single Li-Ion or Li-Polymer cell that require multiple power rails. This device is particularly suited for processor-based systems, providing efficient power management for core voltage, peripheral, I/O, and memory rails.
The TPS65021 integrates three highly efficient step-down converters and two general-purpose LDO voltage regulators, along with various features to enhance power management efficiency and flexibility.
Key Specifications
| Parameter | Description |
|---|---|
| Step-Down Converters | - 1.2-A, 97% Efficient for System Voltage (VDCDC1) - 1-A, Up to 95% Efficient for Memory Voltage (VDCDC2) - 900-mA, 90% Efficient for Processor Core (VDCDC3) |
| LDO Voltage Regulators | - 2 × 200-mA General-Purpose LDOs - Input Voltage Range: 1.5 V to 6.5 V |
| Real-Time Clock (VRTC) | 30-mA LDO and Switch |
| Serial Interface | I2C-Compatible, up to 400 kHz |
| Quiescent Current | 85-μA |
| Package | 40-Pin 6-mm × 6-mm VQFN (RHA) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- 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
- Low-Ripple PFM Mode
- Thermal Shutdown Protection
Applications
- PDA
- Cellular/Smart Phone
- Internet Audio Player
- Digital Still Camera
- Digital Radio Player
- Split Supply TMS320™ DSP Family and μP Solutions (e.g., OMAP™1610, OMAP1710, OMAP330, XScale Bulverde, Samsung ARM-Based Processors)
- Intel® PXA270 and other similar processors
Q & A
- What is the primary function of the TPS65021RHAT?
The TPS65021RHAT is an integrated power management IC designed to provide multiple power rails for applications powered by a single Li-Ion or Li-Polymer cell.
- How many step-down converters does the TPS65021RHAT have?
The TPS65021RHAT has three highly efficient step-down converters.
- What are the efficiencies of the step-down converters?
The step-down converters have efficiencies of 97% for VDCDC1, up to 95% for VDCDC2, and 90% for VDCDC3.
- What is the input voltage range for the LDO voltage regulators?
The input voltage range for the LDO voltage regulators is from 1.5 V to 6.5 V.
- What type of serial interface does the TPS65021RHAT use?
The TPS65021RHAT uses an I2C-compatible serial interface with transfer rates up to 400 kHz.
- What is the quiescent current of the TPS65021RHAT?
The quiescent current is 85-μA.
- What is the operating temperature range of the TPS65021RHAT?
The operating temperature range is -40°C to +85°C.
- What package type is the TPS65021RHAT available in?
The TPS65021RHAT is available in a 40-pin 6-mm × 6-mm VQFN (RHA) package.
- Does the TPS65021RHAT support dynamic voltage scaling?
Yes, the TPS65021RHAT supports dynamic voltage scaling through its I2C interface.
- What are some common applications of the TPS65021RHAT?
Common applications include PDAs, cellular/smart phones, internet audio players, digital still cameras, and digital radio players.
