TPS62993-Q1数据手册TI中文资料规格书

描述 Description

The TPS62993-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 TPS62993-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:
• Temperature grade 1: –40°C to +125°C, TA
• Level 2 device HBM ESD classification
• Level C4B CDM ESD classification

• Functional Safety-Capable
• Documentation available to aid functional safety system design

• Extended TJ range: up to 165°C
• High efficiency DCS-Control topology
• RDS(ON): 62-mΩ high side, 22-mΩ low side
• Seamless PWM/PFM transition
• Internal compensation

• 4-µA low IQ (typical)
• Up to 3-A continuous output current
• ±1.5% output voltage accuracy across temp
• Configurable output voltage options:
• 0.6-V to 5.5-V VFB external divider
• VSET internal divider
• 16 options between 0.4 V and 5.5 V


• Flexibility through the MODE/S-CONF pin
• 2.5-MHz or 1.0-MHz switching frequency
• Forced PWM or Auto PFM (power save mode) with dynamic mode change option
• Output discharge on and off

• No external bootstrap capacitor required
• Overcurrent and overtemperature protection
• 100% duty cycle mode
• Precise enable input
• Adjustable soft start and tracking
• Power-good output
• Optimized pinout for single-layer routing
• Wettable 2.2-mm × 2.0-mm VQFN package with 0.5-mm pitch
• Create a custom design with the TPS62993-Q1 using the WEBENCH Power Designer