TI TPS650061RUKR

The TPS6500xx devices are single-chip power management (PWM) ICs for portable applications. Both devices combine a single step-down converter with two low-dropout (LDO) regulators. The stepdown 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 through a pin. The step-down converter is small because of its small inductor and capacitors. The step-down converter has power good status output for sequencing. The LDOs can supply 300 mA and operate with an input voltage range from 1.6 V to 6 V. A step-down converter or main battery can power the LDOs directly. The step-down converter and the LDOs have separate voltage inputs that enable maximum design and sequencing flexibility. The TPS65001 extends functionality by adding a supply voltage supervisor (SVS). To maximize the flexibility of the SVS, the reset voltage is set with two external resistors and the reset time is set by a small external capacitor. For external control, the SVS can use its active-low manual reset input to connect to a push button.

• Step-Down Converters:
  • VIN Range From 2.3 V to 6 V
  • Spread Spectrum Clock (SSC) Generation for Reduced EMI
  • 2.25-MHz Fixed Frequency Operation
  • 600-mA or 1-A (TPS650061) Output Current
• Low Dropouts (LDOs):
  • VIN Range From 1.6 V to 6 V
  • Adjustable Output Voltage
  • Up to 300-mA Output Current
  • Separate Power Inputs and Enables
• Supply Voltage Supervisor (TPS65001):
  • Manual Reset Input for Push Button
  • Adjustable Reset Time
  • Adjustable Reset Voltage

• Points-of-Load
• Embedded Processor Power
• Cell Phones
• Smart Phones
• PDAs
• Pocket PCs
• Portable Media Players