TPS631010中文资料3A 峰值电流超小解决方案尺寸高效降压/升压转换器数据手册TI规格书

描述 Description

The TPS631010 and TPS631011 are constant frequency peak current mode control buck-boost converters in tiny wafer chip scale package. They have a 3-A peak current limit (typical) and 1.6-V to 5.5-V input voltage range, and provide a power supply solution for system pre-regulators and voltage stabilizers.

Depending on the input voltage, the TPS631010 and TPS631011 automatically operate in boost, buck, or in 3-cycle buck-boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at a defined duty cycle and avoid unwanted toggling within the modes to reduce output voltage ripple. 8-µA quiescent current and power save mode power enable the highest efficiency for light to no-load conditions.

The devices offer a very small solution size in WCSP.

特性 Features

• 1.6-V to 5.5-V input voltage range
• 1.2-V to 5.5-V output voltage range(adjustable)
• 2-A output current for VIN ≥ 3 V, VOUT = 3.3 V
• Active output discharge (TPS631011 only)
• 8-µA typical quiescent current
• Peak current buck-boost mode architecture
• Forward and reverse current operation
• Fixed-frequency operation with 2-MHz switching
• Safety and robust operation features
• Integrated soft start with active ramp adoption
• True shutdown function with load disconnect
• Small solution size
• 1.803-mm × 0.905-mm in WCSP
• Create a custom design using the TPS631010 and TPS631011 with the WEBENCH Power Designer