SBVS125D August 2010 – June 2015 TPS7A30
The input supply for the LDO must be within the recommended operating conditions (that is, between –3 V and –35 V). The input voltage must provide adequate headroom in order for the device to have a regulated output. If the input supply is noisy, additional input capacitors with low ESR can help improve the output noise performance.
The input and output supplies must also be bypassed with at least a 2.2-μF capacitor located near the input and output pins. There must be no other components located between these capacitors and the pins.