Overview
The TPS65023RSBT is an integrated 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 power management. The TPS65023RSBT integrates three highly efficient step-down converters and three low-dropout (LDO) voltage regulators, along with an I²C-compatible serial interface. This allows for dynamic voltage scaling, interrupt masking, and other advanced power management features. The device operates over a wide temperature range of -40°C to 85°C and is packaged in a 40-pin WQFN (RSB) package.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | WQFN (RSB) | 40 pins, 5-mm × 5-mm |
| Operating Temperature Range | -40°C to 85°C | |
| Step-Down Converters | VDCDC1 (Processor Core) | 1.7 A, 90% efficient |
| VDCDC2 (System Voltage) | 1.2 A, up to 95% efficient | |
| VDCDC3 (Memory Voltage) | 1.0 A, 92% efficient | |
| LDO Regulators | VRTC (Real Time Clock) | 30 mA |
| General-Purpose LDOs | 2 × 200 mA | |
| I²C Interface | Compatible with fast and standard mode, up to 400 kHz | |
| Quiescent Current | 85 µA | |
| Thermal Shutdown Protection | Yes |
Key Features
- Three highly efficient step-down converters: VDCDC1 (1.7 A, 90% efficient), VDCDC2 (1.2 A, up to 95% efficient), and VDCDC3 (1.0 A, 92% efficient)
- Two general-purpose 200-mA LDO voltage regulators and a 30-mA LDO for the real-time clock
- Dynamic voltage management for the processor core through the I²C interface
- 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 with setup and hold timing of 300 ns (TPS65023) or 100 ns (TPS65023B)
- Low ripple PFM mode and thermal shutdown protection
Applications
- Digital media players
- Internet audio players
- Digital still cameras
- Smartphones
- Supply solutions for the DaVinci™ DSP family
Q & A
- What is the primary function of the TPS65023RSBT?
The TPS65023RSBT is an integrated power management IC designed to provide multiple power rails for processor-based systems powered by a single Li-Ion or Li-Polymer cell.
- How many step-down converters does the TPS65023RSBT have?
The device has three highly efficient step-down converters: VDCDC1, VDCDC2, and VDCDC3.
- What are the efficiencies of the step-down converters?
VDCDC1 is 90% efficient, VDCDC2 is up to 95% efficient, and VDCDC3 is 92% efficient.
- What is the function of the LDO regulators in the TPS65023RSBT?
The device includes two general-purpose 200-mA LDO regulators and a 30-mA LDO for the real-time clock.
- How does the I²C interface contribute to the device's functionality?
The I²C interface allows for dynamic voltage scaling, interrupt masking, and setting LDO output voltages, among other functions.
- What is the operating temperature range of the TPS65023RSBT?
The device operates over a temperature range of -40°C to 85°C.
- What type of package does the TPS65023RSBT come in?
The device is packaged in a 40-pin WQFN (RSB) package with a size of 5-mm × 5-mm.
- What is the quiescent current of the TPS65023RSBT?
The quiescent current is 85 µA.
- Does the TPS65023RSBT have thermal shutdown protection?
Yes, the device includes thermal shutdown protection.
- What are some typical applications of the TPS65023RSBT?
Typical applications include digital media players, internet audio players, digital still cameras, smartphones, and supply solutions for the DaVinci™ DSP family.
