The TPS65705x devices are small power management units targeted for embedded camera module or other portable low-power consumer-end equipments. The device contains two highly efficient step-down converters, a low dropout linear regulator, and additional supporting functions. The 2.25-MHz step-down converter enters a low-power mode at light load for maximum efficiency across the widest possible range of load currents. For low-noise applications, the device can be forced into fixed-frequency PWM mode using the MODE pin. The device allows the use of small inductors and capacitors to achieve a small sized solution. The TPS65705x provides an output current of up to 400 mA on both DC-DC converters and integrates one 200-mA LDO with different output settings. The LDO operates with an input voltage range from 1.7 V to 6 V, thus allowing it to be supplied from the output of the step-down converter or directly from the system voltage.

The TPS65705x comes in a small 16-pin wafer chip scale package (WCSP) with 0.5-mm ball pitch.

• Two 400-mA Step-Down Converters
• Up to 92% Efficiency
• VIN Range for DC-DC Converter From 3.3 V to 6 V
• 2.25-MHz Fixed-Frequency Operation
• Power Save Mode at Light Load Current
• Output Voltage Accuracy in PWM Mode ±1.5%
• 100% Duty Cycle for Lowest Dropout
• 180° Out-of-Phase Operation
• 1 General Purpose 200-mA LDO
• VIN Range for LDO From 1.7 V to 6.0 V
• Available in a 16-Ball DSBGA (WCSP) With 0.5- mm Pitch

• Regulated outputs (#)
• 3
• Vin (Min) (V)
• 1.7
• Vin (Max) (V)
• 6
• Iout (Max) (A)
• 0.4
• Rating
• Catalog
• LDO
• 1
• Iq (Typ) (mA)
• 0.005
• Features
• Enable, Enable Pin, Thermal Shutdown, UVLO Fixed
• Shutdown current (ISD) (Typ) (uA)
• 5
• Switching frequency (Typ) (kHz)
• 2480
• Configurability
• Hardware configurable

TPS657051的完整型号有：TPS657051YZHT，以下是这些产品的关键参数及官网采购报价：

TPS657051YZHT，工作温度：-40 to 85，封装：DSBGA (YZH)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网TPS657051YZHT的批量USD价格：1.47（1000+）