The TPS8268x device is a complete DC/DC step-down power supply optimized for small solution size. Included in the package are the switching regulator, inductor and input/output capacitors. Integration of all passive components enables a tiny solution size of only 6.7mm².

The TPS8268x is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications in which high load currents in a very small solution size and height are required. The TPS8268x is optimized for high efficiency and low output voltage ripple and supports up to 1600-mA load current. With an input voltage range of 2.5-V to 5.5-V, the device supports applications powered by Li-Ion batteries as well as 5-V and 3.3-V rails.

The TPS8268x operates at a 5.5-MHz switching frequency with spread spectrum capability. For noise-sensitive applications, this provides a lower noise regulated output, as well as low noise at the input. The device supports a fixed output voltage, requiring no external feedback network.

These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency with the same size.

The TPS8268x is packaged in a compact (2.3mm × 2.9mm) and low profile BGA package suitable for automated assembly by standard surface mount equipment.

• Wide VIN Range From 2.5V to 5.5V
• Total Solution Size < 6.7 mm2
• Sub 1-mm Profile Solution
• ±1.5% DC Voltage Accuracy
• Up to 1600-mA Load Current
• Up to 90% Efficiency
• Fixed Output Voltage:
  • TPS8268180: 1.80V
  • TPS8268150: 1.50V
  • TPS8268120: 1.20V
  • TPS8268105: 1.05V
  • TPS8268090: 0.90V
• Low EMI by Spread Spectrum PWM Frequency Dithering
• Best in Class Load and Line Transient Response
• Internal Soft Start
• Current Overload and Thermal Shutdown Protection

• Iout (Max) (A)
• 1.6
• Vin (Min) (V)
• 2.5
• Vin (Max) (V)
• 5.5
• Vout (Min) (V)
• 1.2
• Vout (Max) (V)
• 1.2
• Soft start
• Fixed
• Features
• Enable, Output Discharge, Spread Spectrum
• Iq (Typ) (uA)
• 7000
• Regulated outputs (#)
• 1
• Switching frequency (Max) (kHz)
• 5500
• Switching frequency (Min) (kHz)
• 5500
• Duty cycle (Max) (%)
• 48
• Topology
• Buck, Synchronous Buck

TPS8268120的完整型号有：TPS8268120SIPR、TPS8268120SIPT，以下是这些产品的关键参数及官网采购报价：

TPS8268120SIPR，工作温度：-40 to 85，封装： (SIP)-9，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SNAGCU，TI官网TPS8268120SIPR的批量USD价格：1.162（1000+）

TPS8268120SIPT，工作温度：-40 to 85，封装： (SIP)-9，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SNAGCU，TI官网TPS8268120SIPT的批量USD价格：1.394（1000+）

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