Overview
The TPS650250RHBT, produced by Texas Instruments, is an integrated power management IC (PMIC) designed for applications requiring multiple power rails. This device is particularly suited for processor-based systems, providing core voltage, peripheral, I/O, and memory rails. The TPS650250 integrates three highly efficient step-down converters and two general-purpose LDO (Low Dropout) voltage regulators, making it an ideal solution for systems needing multiple voltage levels.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | VQFN-32 | 5.00 mm × 5.00 mm |
| Operating Temperature Range | -40°C to 85°C | |
| Step-Down Converter 1 (VDCDC1) | Output Current / Efficiency / Output Voltage | 1.6 A / 97% / 3.3 V, 2.8 V, or Adjustable |
| Step-Down Converter 2 (VDCDC2) | Output Current / Efficiency / Output Voltage | 0.8 A / up to 95% / 1.8 V, 2.5 V, or Adjustable |
| Step-Down Converter 3 (VDCDC3) | Output Current / Efficiency / Output Voltage | 0.8 A / 90% / Adjustable |
| LDO Regulators | Output Current / Input Voltage Range | 2 × 200 mA / 1.5 V to 6.5 V |
| LDO for Vdd_alive | Output Current | 30 mA |
| Switching Frequency | 2.25 MHz | |
| 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.
- Adjustable output voltage on all step-down converters using external resistor dividers.
- Two general-purpose 200-mA LDO voltage regulators with externally adjustable output voltage.
- A 30-mA LDO for the always-on rail (Vdd_alive).
- Dynamic voltage management for the processor core.
- Separate enable pins for each inductive converter.
- Low-power mode at light loads and forced fixed frequency PWM mode.
- Thermal shutdown protection.
Applications
- Cellular and smart phones.
- GPS devices.
- Digital still cameras.
- Split supply DSP and microprocessor solutions.
- Samsung ARM-based processors.
Q & A
- What is the primary function of the TPS650250RHBT?
The TPS650250RHBT is an integrated power management IC designed to provide multiple power rails for processor-based systems.
- How many step-down converters does the TPS650250RHBT have?
The device has three highly efficient step-down converters.
- What are the output current and efficiency of the VDCDC1 converter?
The VDCDC1 converter has an output current of 1.6 A and an efficiency of up to 97%.
- Can the output voltage of the step-down converters be adjusted?
- What is the switching frequency of the TPS650250RHBT?
The switching frequency is 2.25 MHz.
- Does the TPS650250RHBT have thermal shutdown protection?
- What is the quiescent current of the device?
The quiescent current is 85 μA.
- What are the typical applications of the TPS650250RHBT?
It is used in cellular and smart phones, GPS devices, digital still cameras, and other processor-based systems.
- How many LDO regulators does the TPS650250RHBT have?
The device has two general-purpose 200-mA LDO voltage regulators and one 30-mA LDO for the always-on rail.
- What is the operating temperature range of the TPS650250RHBT?
The operating temperature range is -40°C to 85°C.
