TPS63805YFFR

TPS63805, TPS63806, and TPS63807 are high-efficiency, high-output-current buck-boost converters. Depending on the input voltage, they automatically operate in boost, buck, or a novel 4-switch buck-boost mode when the input voltage is approximately equal to the output voltage. Mode transitions occur within defined thresholds to avoid unnecessary in-mode switching, thereby reducing output voltage ripple. The output voltage of these devices can be individually adjusted over a wide output voltage range via a resistive voltage divider. TPS63805 and TPS63807 achieve an ultra-small solution size with a minimal BOM. A quiescent current of 11 μA enables excellent efficiency under very light or no-load conditions. TPS63805, TPS63806, and TPS63807 are available in a 1.4 mm×2.3 mm package. The devices are compatible with miniature passive components, keeping the overall solution size compact. TPS63806 is optimized for applications with load step response challenges under heavy load profiles.

Applications

• TPS63805: System pre-regulator (smartphones, tablets, EFT terminals, and telematics), point-of-load regulation (wired sensors, port/cable adapters, and dongles)
• TPS63806: Time-of-flight camera sensors (smartphones, electronic smart locks, and IP network cameras), broadband network radio or SoC power supply (IoT, tracking, home automation, and EPOS), thermoelectric device power supply (TEC, fiber optic modules), general-purpose voltage regulator
• TPS63807: Applications requiring output discharge functionality

Key features

• Output voltage range: 1.8V to 5.2V (adjustable)
• Peak current buck/boost mode architecture
• Configurable switching points between buck, buck/boost, and boost operating modes
• Forward and reverse current operation
• Start-up into pre-biased output
• Integrated soft-start
• Overtemperature and overvoltage protection
• True shutdown with load disconnect
• Forward and reverse current limiting
• TPS63805 optimized for minimum solution size of 18.5 mm² (with 22 μF minimum output capacitor), 2A output current at V₁ ≥ 2.3V, V₀ = 3.3V, 11 μA operating quiescent current
• TPS63806 optimized for best load transient response (180 mV load step response at 2A current step), up to 2.5A transient output current, 13 μA operating quiescent current
• TPS63807 optimized for minimum solution size of 18.5 mm² (with 22 μF minimum output capacitor), 2A output current at V₁ ≥ 2.3V, V₀ = 3.3V
• Typical application: 11 μA operating quiescent current, output discharge when EN is low, 480 μs Tramp, low inrush current during start-up