TPS62992-Q1中文资料3V 至 10V、2A、低 IQ 汽车类同步降压转换器数据手册TI规格书

描述 Description

The TPS62992-Q1 is a highly efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high VOUT accuracy of ± 1.5% across the entire operasting temperature range and enhanced load transient performance with the DCS-Control topology. The wide 3-V to 10-V input voltage range supports a variety of nominal inputs, like 9-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPS62992-Q1 can automatically enter power save mode (if auto PFM or PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/Smart-CONF input to set the internal and external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

特性 Features

• AEC-Q100 qualified for automotive applications:
• Level 2 device HBM ESD classification
• Functional Safety-Capable
• Extended TJ range: up to 165°C
• RDS(ON): 62-mΩ high side, 22-mΩ low side
• Internal compensation
• 4-µA low IQ (typical)
• ±1.5% output voltage accuracy across temp
• 0.6-V to 5.5-V VFB external divider
• 16 options between 0.4 V and 5.5 V
• Flexibility through the MODE/S-CONF pin
• Forced PWM or Auto PFM (power save mode) with dynamic mode change option
• No external bootstrap capacitor required
• 100% duty cycle mode
• Adjustable soft start and tracking
• Optimized pinout for single-layer routing
• Create a custom design with the TPS62992-Q1 using the WEBENCH Power Designer