Overview
The TPS65053-Q1 is an integrated power management IC (PMIC) designed by Texas Instruments for applications powered by a single Li-Ion or Li-Polymer cell, requiring multiple power rails. This device is particularly suited for processor-based systems, providing core voltage and I/O voltage. It features two highly efficient, 2.25-MHz step-down converters and three low-dropout (LDO) voltage regulators. The PMIC is optimized for automotive and other battery-powered devices, ensuring high efficiency across a wide range of load currents.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range for DC-DC Converters | 2.5 V to 6 V | V |
| Output Current for DCDC1 | 1 A | A |
| Output Current for DCDC2 | 0.6 A | A |
| Output Current for LDO1 | 400 mA | A |
| Output Current for LDO2 and LDO3 | 200 mA | A |
| Fixed Frequency Operation | 2.25 MHz | Hz |
| Output Voltage Accuracy in PWM Mode | ±1% | % |
| Quiescent Current for Both DC-DC Converters | 32 μA | A |
| Input Voltage Range for LDOs | 1.5 V to 6.5 V | V |
| Output Voltage for LDO3 | 1.3 V | V |
| Package Type | 24-Pin VQFN (RGE) | |
| Operating Temperature Range | -40°C to 85°C | °C |
Key Features
- Two highly efficient, 2.25-MHz step-down converters with externally adjustable output voltages.
- One general-purpose 400-mA LDO and two general-purpose 200-mA LDOs.
- LDO1 and LDO2 are externally adjustable, while LDO3 has a fixed output voltage of 1.3 V.
- Power Save Mode at light-load current and 180° out-of-phase operation for improved efficiency.
- 100% duty cycle for lowest dropout voltage.
- AEC-Q100 qualified with a temperature grade of -40°C to +85°C.
- Small solution size using small inductors and capacitors.
Applications
The TPS65053-Q1 is designed for various automotive and battery-powered applications, including:
- GPS and emergency cell phone devices.
- Digital cameras.
- Satellite radio modules.
- OMAP™ and low-power DSP systems.
Q & A
- What is the input voltage range for the DC-DC converters in the TPS65053-Q1?
The input voltage range for the DC-DC converters is from 2.5 V to 6 V. - What are the output currents for the DCDC1 and DCDC2 converters?
The output current for DCDC1 is up to 1 A, and for DCDC2, it is up to 0.6 A. - How many LDOs are integrated into the TPS65053-Q1, and what are their output currents?
The device includes one 400-mA LDO and two 200-mA LDOs. - What is the fixed frequency of operation for the step-down converters?
The fixed frequency of operation is 2.25 MHz. - What is the output voltage accuracy in PWM mode for the DC-DC converters?
The output voltage accuracy in PWM mode is ±1%. - What is the quiescent current for both DC-DC converters?
The total typical quiescent current for both DC-DC converters is 32 μA. - What is the input voltage range for the LDOs?
The input voltage range for the LDOs is from 1.5 V to 6.5 V. - What is the fixed output voltage for LDO3?
The fixed output voltage for LDO3 is 1.3 V. - What is the package type and size of the TPS65053-Q1?
The device is available in a 24-pin VQFN (RGE) package with dimensions of 4-mm × 4-mm. - What is the operating temperature range for the TPS65053-Q1?
The operating temperature range is -40°C to 85°C.
