4 Channel PMU in Small Chipscale - TPS65708

TPS65708 (ACTIVE)

4 Channel PMU in Small Chipscale

Description

TPS65708 is a power management unit targeted for embedded camera modules or other portable low-power consumer end equipment. It contains two high-efficiency step-down converters, two low-dropout linear regulators, and a 7.5mA current sink for driving a LED. The 2.25MHz 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 devices 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 solution size. TPS65708 provides an output current of up to 400mA on both DCDC converters and up to 200mA on each of the LDOs. The enable signal to the dcdc converters and LDOs is generated internally by the undervoltage lockout circuit.

The TPS65708 comes in a small 16-ball wafer chip-scale package (WCSP) with 0.5mm ball pitch.

Features

  • Two 400mA Step-Down Converters
  • Up to 95% Efficiency
  • VIN Range for DCDC Converters From
    3.6V to 6V
  • 2.25MHz 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
  • 2 General Purpose 200mA LDOs
  • LDOs Optionally Powered From Step-Down Converters
  • 7.5mA PWM Dimmable Current Sink
  • Available in a 16-Ball WCSP with 0.5mm Pitch
  • APPLICATIONS
    • Monitors
    • Laptops
    • Handheld Equipment

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    Parametrics Compare all products in Power Management Multi-Channel IC (PMIC) Solutions

     
    Regulated Outputs (#)
    Vin (Min) (V)
    Vin (Max) (V)
    LDO
    Step-Down DC/DC Converter
    Iout (Max) (A)
    Rating
    Operating Temperature Range (C)
    Pin/Package
    Approx. Price (US$)
    TPS65708 TPS657051 TPS657052
    4     3     3    
    3.6     3.3     3.3    
    6     6     6    
    2     1     1    
    2     2     2    
    0.4     0.3     0.4    
    Catalog     Catalog     Catalog    
    -40 to 85     -40 to 85     -40 to 85    
    16DSBGA     16DSBGA     16DSBGA    
    1.65 | 1ku     1.20 | 1ku     1.20 | 1ku    

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