Texas Instruments TPS62932

Beschreibung

The TPS62933/TPS62932 is a high-efficiency, easyto-use synchronous buck converter with a wide input voltage range of 3.8 V to 30 V, and supports up to3-A/2-A continuous output current and 0.8-V to 22-V output voltage.The device employs fixed-frequency peak current control mode for fast transient response and good line and load regulation. The optimized internal loop compensation eliminates external compensation components. Pulse frequency modulation (PFM) mode maximizes the light load efficiency. The ULQ (ultra-low quiescent) feature is extremely beneficial for long battery lifetime in low-power operation. Theswitching frequency can be set by the configuration of the RT pin in the range of 200 kHz to 2.2 MHz,which allows the user to optimize system efficiency,solution size, and bandwidth. The soft-start time canbe adjusted by the external capacitor at the SS pin,which can minimize the inrush current when driving large capacitive load. This device also has frequency spread spectrum feature, which helps with loweringdown EMI noise.This device is in a small SOT583 (1.6-mm × 2.1-mm) package with 0.5-mm pin pitch, and has an optimized pinout for easy PCB layout and promotes good EMI performance.

Eigenschaften

• Configured for a wide range of applications
• Input voltage range: 3.8 V to 30 V
• Output voltage range: 0.8 V to 22 V
• Ultra-low quiescent current: 12 μA (typical)
• Integrated 76-mΩ and 32-mΩ MOSFETs
• 0.8V ± 1% reference voltage
• Maximum 98% duty cycle operation
• Precision EN threshold
• 3-A (TPS62933) and 2-A (TPS62932)continuous output current
• Operating junction temperature: –40°C to150°C
• Ease of use and small solution size
• Peak current control mode with internalcompensation
• Pulse frequency modulation (PFM) for highlight-load efficiency
• Adjustable soft-start time
• 200-kHz to 2.2-MHz selectable frequency
• EMI friendly with frequency spread spectrum
• Support start-up with pre-biased output
• Cycle-by-cycle OC limit for both high-side and low-side MOSFETs
• Non-latched protections for OTP, OCP, OVP,UVP, and UVLO
• 1.6-mm × 2.1-mm SOT583
• Create a custom design with the TPS62933 using the WEBENCH® Power Designer
• Create a custom design with the TPS62932 using the WEBENCH® Power Designer

Typische Anwendungen

• Portable electronics
• appliances, Smart speakers, monitors
• Distributed power systems with 5-V, 12-V, 19-V, 24-V input
• Multifunction printers, enterprise projectors, connected peripherals
• industrial PC

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers