Datasheet

TPS65930/TPS65920
www.ti.com SWCS037G–MAY 2008–REVISED APRIL 2011
4.1.9 Charge Pump
The charge pump generates a 4.8-V (nominal) power supply voltage from the battery to the VBUS pin.
The input voltage range is 2.7 to 4.5 V for the battery voltage. The charge pump operating frequency is
1 MHz.
The charge pump tolerates 7 V on VBUS when it is in power-down mode. The charge pump integrates a
short-circuit current limitation at 450 mA. Table 4-11 lists the charge pump output load conditions.
Table 4-11. Charge Pump Output Load Conditions
Parameter Test Conditions Min Typ Max Unit
Output Load Conditions
Filtering capacitor Connected from VBUS to VSSP 1.41 4.7 6.5 μF
Flying capacitor Connected from CP to CN 1.32 2.2 3.08 μF
Filtering capacitor ESR 20 mΩ
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