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The PST751xx family of low-dropout (LDO),
low-power linear regulators offers very high power supply
rejection ratio (PSRR) while maintaining very low 35mA ground
current. The family uses an advanced CMOS process and a PMOSFET
pass device to achieve fast start-up, very low noise, excellent
transient response, and excellent PSRR performance. The PST751xx
is stable with a 1.0mF ceramic output capacitor, and uses a
precision voltage reference and feedback loop to achieve a
worst-case accuracy of 3% over all load, line, process, and
temperature variations. It is fully specified from TJ = –40°C to
+125°C and is offered in a small TSOT23-5 package, SOIC-8, and a
ultra-small 2mm × 2mm DFN package with a thermal pad, which are
ideal for small form factor portable equipment such as wireless
handsets and PDAs.
The
PST751xx is available in standard fixed output voltages of 1.2V
(PST75112), 1.5V (PST75115), 1.8V (PST75118), 2.5V (PST75125),
2.8 (PST75128), 3.0V (PST75130), 3.3V (PST75133), and custom
voltage options (50mV step options between 0.8V and 5.0V are
available upon request).
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