Overview
The TPS62404QDRCRQ1 is a dual synchronous step-down DC-DC converter produced by Texas Instruments. This device is part of the TPS6240x-Q1 family, optimized for battery-powered portable applications and automotive systems. It provides two independent output voltage rails, making it suitable for powering various components in a system.
The converter operates at a fixed switching frequency of 2.25 MHz and features a power-save mode at light load currents to maintain high efficiency. It supports dynamic voltage scaling through the EasyScale™ serial interface, allowing for output voltage adjustments during operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VIN) | 2.5 to 6 | V |
| Output Current (IOUT1) | 400 | mA |
| Output Current (IOUT2) | 600 | mA |
| Default Output Voltage (VOUT1) | 1.2 V (DEF_1 Low), 1.9 V (DEF_1 High) | V |
| Default Output Voltage (VOUT2) | 3.3 V | V |
| Switching Frequency | 2.25 MHz | Hz |
| Efficiency | Up to 95% | % |
| Quiescent Current | Typical 32 μA for both converters | μA |
| Operating Junction Temperature | -40 to 125 | °C |
| Package | 10-Pin VSON with Thermal Pad |
Key Features
- High efficiency up to 95%
- VIN range from 2.5 V to 6 V
- 2.25-MHz fixed-frequency operation
- Adjustable output voltage from 0.6 V to VIN using the EasyScale™ interface
- Pin-selectable output voltage for simple dynamic voltage scaling
- Power-save mode at light load currents
- 180° out-of-phase operation to reduce input rms current
- Output-voltage accuracy in PWM mode ±1%
- Typical 32-μA quiescent current for both converters
- 100% duty cycle for lowest dropout
- Shutdown mode reduces current consumption to 1.2 μA typical
Applications
- Infotainment and cluster systems
- Advanced Driver Assistance Systems (ADAS)
- Battery-powered portable applications
- Automotive systems
Q & A
- What is the operating voltage range of the TPS62404QDRCRQ1?
The operating voltage range is from 2.5 V to 6 V.
- What are the default output voltages for the TPS62404QDRCRQ1?
The default output voltages are 1.2 V or 1.9 V for VOUT1 and 3.3 V for VOUT2, depending on the DEF_1 pin configuration.
- What is the switching frequency of the TPS62404QDRCRQ1?
The switching frequency is fixed at 2.25 MHz.
- How efficient is the TPS62404QDRCRQ1?
The device can achieve an efficiency of up to 95%.
- What is the quiescent current of the TPS62404QDRCRQ1?
The typical quiescent current for both converters is 32 μA.
- Can the output voltage be adjusted dynamically?
Yes, the output voltage can be adjusted dynamically using the EasyScale™ serial interface.
- What is the package type of the TPS62404QDRCRQ1?
The package type is a 10-Pin VSON with a thermal pad.
- What are the typical applications of the TPS62404QDRCRQ1?
Typical applications include infotainment and cluster systems, ADAS, battery-powered portable applications, and automotive systems.
- How does the power-save mode operate?
The device enters power-save mode at light load currents to maintain high efficiency.
- What is the shutdown current consumption of the TPS62404QDRCRQ1?
The shutdown mode reduces current consumption to 1.2 μA typical.
