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 TPS65000 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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|Regulated Outputs (#)|
|Vin (Min) (V)|
|Vin (Max) (V)|
|Step-Up DC/DC Controller|
|Step-Down DC/DC Controller|
|Step-Up DC/DC Converter|
|Step-Down DC/DC Converter|
|Iout (Max) (A)|
|Shutdown Current (Typ) (uA)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|Texas Instruments||Texas Instruments|
|Power Good||Power Good|| Enable |
|Power Good||Power Good||Power Good|
|-40 to 85||-40 to 85||-40 to 125||-40 to 85||-40 to 85|| -40 to 85 |
-55 to 125
|-40 to 85|
|1.50 | 1ku||1.40 | 1ku||1.64 | 1ku||1.40 | 1ku||1.40 | 1ku||1.40 | 1ku||1.40 | 1ku|
|Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy|