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Texas Instruments TPS62992-Q1 Automotive Buck Converter

Texas Instruments TPS62992-Q1 Automotive Buck Converter features high efficiency and flexibility in a small package size that is easy to use. The TPS62992-Q1 provides a 2.5MHz or 1.0MHz selectable switching frequency, permitting a fast transient response and using small inductors. The device delivers a high ±1.5% VOUT accuracy across the entire operating temperature range and enhanced load transient performance with the DCS-Control topology. The wide 3V to 10V input voltage range supports a variety of nominal inputs, such as 9V supply rails, single-cell or multi-cell Li-Ion, and 5V or 3.3V rails.

The TI TPS62992-Q1 automotive buck converter automatically enters power save mode (if auto PFM or PWM is selected) at light loads to maintain high efficiency. Furthermore, to allow high efficiency at tiny loads, the device has a low typical quiescent current of 4µA. AEE, if enabled, equips high efficiency across VIN, VOUT, and load current. The device incorporates 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.

Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1 of –40°C to +125°C, T_A
- Level 2 device HBM ESD classification
- Level C4B CDM ESD classification
Functional Safety-Capable
- Documentation available to aid functional safety system design
Extended T_J range up to +165°C
High-efficiency DCS-Control topology
- R_DS(ON) of 62mΩ high side, 22mΩ low side
- Seamless PWM/PFM transition
- Internal compensation
4µA low IQ (typical)
Up to 2A continuous output current
±1.5% output voltage accuracy across temp
Configurable output voltage options:
- 0.6V to 5.5V VFB external divider
- V_SET internal divider
  - 16 options between 0.4V and 5.5V

Flexibility through the MODE/S-CONF pin
- 2.5MHz or 1.0MHz 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 2.2mm x 2.0mm VQFN package with 0.5mm pitch
Create a custom design with the TPS62992-Q1 using the WEBENCH® Power Designer

Applications

ADAS
Body electronics and lighting

Infotainment and cluster
Hybrid, electric, and powertrain systems

Texas Instruments TPS62992-Q1 Automotive Buck Converter

Features

Applications

Simplified Schematic

Functional Block

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