Multi-Channel 1-cell Li-Ion Power Mgmt IC: USB/AC Charger, 2DC/DC, 2 LDOs, I2C interface in QFN-48 The TPS65011 is a power management IC (PMIC) manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features based on factual information from TI's knowledge base:
### **Specifications:**
- **Input Voltage Range:** 2.5V to 6.0V
- **Output Voltage:**
- **Buck Converter 1 (DCDC1):** Adjustable (0.8V to 3.3V)
- **Buck Converter 2 (DCDC2):** Adjustable (0.8V to 3.3V)
- **Buck Converter 3 (DCDC3):** Fixed 1.8V
- **LDO1 (VLDO1):** Adjustable (1.0V to 3.3V)
- **LDO2 (VLDO2):** Fixed 1.8V
- **Output Current:**
- **DCDC1 & DCDC2:** Up to 600mA each
- **DCDC3:** Up to 400mA
- **LDO1:** Up to 200mA
- **LDO2:** Up to 200mA
- **Switching Frequency:** 1.25MHz (typical)
- **Efficiency:** Up to 95%
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 32-pin QFN (5mm x 5mm)
### **Description:**
The TPS65011 is an integrated power management IC designed for portable applications, particularly those powered by single-cell Li-ion batteries. It combines two step-down converters (DCDC1 and DCDC2), a fixed-output step-down converter (DCDC3), and two low-dropout regulators (LDOs) in a single package. It is optimized for low-power systems requiring multiple voltage rails, such as processors and microcontrollers.
### **Features:**
- **Integrated Power Solution:** Combines buck converters and LDOs in a single chip.
- **High Efficiency:** Uses synchronous rectification for improved power conversion.
- **Low Quiescent Current:** Optimized for battery-powered applications.
- **Power Sequencing:** Supports controlled power-up/down sequencing.
- **I²C Interface:** Allows dynamic voltage scaling and power management control.
- **Thermal Shutdown & Overcurrent Protection:** Built-in safety features.
- **Small Form Factor:** 32-pin QFN package for space-constrained designs.
For detailed datasheets and application notes, refer to Texas Instruments' official documentation.
