TPS54292是TI公司的一款转换器(集成开关)产品,TPS54292是4.5V 至 18V 输入、1.5/2.5A 双路同步降压 SWIFT? 转换器,本页介绍了TPS54292的产品说明、应用、特性等,并给出了与TPS54292相关的TI元器件型号供参考。
TPS54292 - 4.5V 至 18V 输入、1.5/2.5A 双路同步降压 SWIFT? 转换器 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)
TPS54290/1/2 is a dual output fully synchronous buck converter capable of supporting applications with a minimal number of external components. It operates from a 4.5 V to 18 V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.
Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel1 can provide up to 1.5 A of continuous current, meanwhile, Channel2 supports up to 2.5 A.
Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.
180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.
- 4.5 V to 18 V Input Range
- Output Voltage Range 0.8 V to DMAX × VIN
- Fully Integrated Dual Buck, 1.5 A/2.5 A
- Three Fixed Switching Frequency Versions:
- TPS54290 – 300 kHz
- TPS54291 – 600 kHz
- TPS54292 – 1.2 MHz
- Integrated UVLO
- 0.8 VREF With 1% Accuracy (0°C to 85°C)
- Internal Soft-Start
- TPS54290 – 5.2 ms
- TPS54291 – 2.6 ms
- TPS54292 – 1.3 ms
- Dual PWM Outputs 180° Out-of-Phase
- Dedicated Enable for Each Channel
- Current Mode Control for Simplified Compensation
- External Compensation
- Pulse-by-Pulse Overcurrent Protection, 2.2 A/3.8 A Overcurrent Limit
- Integrated Bootstrap Switch
- Thermal Shutdown Protection at 145°C
- 16-Pin PowerPAD HTSSOP Package
- APPLICATIONS
- Set Top Box
- Digital TV
- Power for DSP
- Consumer Electronics