ZHCS760H February 2012 – June 2018 TLV62130 , TLV62130A
PRODUCTION DATA.
The TLV62130 can be used as inverting power supply by rearranging external circuitry as shown in Figure 40. As the former GND node now represents a voltage level below system ground, the voltage difference between VIN and VOUT has to be limited for operation to the maximum supply voltage of 17 V (see Equation 16).
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The transfer function of the inverting power supply configuration differs from the buck mode transfer function, incorporating a Right Half Plane Zero additionally. The loop stability has to be adapted and an output capacitance of at least 22 µF is recommended. A detailed design example is given in SLVA469.
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