TPS65000

采用 2.25MHz 降压转换器且具有双路 LDO 和 SVS 的电源管理 IC PMIC

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 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 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.

The is available in a 16-pin leadless package 3 mm × 3 mm QFN. The TPS65001 is available in a 20-pin leadless package 3 mm × 3 mm QFN.

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Step-Down Converters:

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VIN Range From 2.3 V to 6 V

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Spread Spectrum Clock SSC Generation for

Reduced EMI

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2.25-MHz Fixed Frequency Operation

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600-mA or 1-A TPS650061 Output Current

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Low Dropouts LDOs:

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VIN Range From 1.6 V to 6 V

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Adjustable Output Voltage

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Up to 300-mA Output Current

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Separate Power Inputs and Enables

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Supply Voltage Supervisor TPS65001

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Manual Reset Input for Push Button

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Adjustable Reset Time

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Adjustable Reset Voltage

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3-mm × 3-mm 16-Pin WQFN TPS65000

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3-mm × 3-mm 20-Pin WQFN TPS65001

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APPLICA ONS

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Points-of-Load

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Embedded Processor Power

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Cell Phones

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Smart Phones

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PDAs

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Pocket PCs

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Portable Media Players

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