TPS727xx Reference Design Circuit | Low Dropout Linear Regulator Application Circuit

The TPS727xx ultra-low Iq low-dropout linear regulator is an ultra-low quiescent current LDO with excellent linearity and ultra-fast load transient performance and is designed for power-sensitive applications. This article mainly introduces the TPS727xx features, application range, reference design circuit and circuit analysis to help you shorten the design time.

TPS727xx features: 2% output accuracy over load/line/temperature range; ultra-low IQ: 7.9μA; high PSRR: 70dB at 1kHz; stable operation when matched to 1.0μF ceramic output capacitor

Typical applications for TPS727xx: wireless phones, smartphones, PDAs; MP3 players and other handheld products; wireless LAN, Bluetooth®, Zigbee®; remote control; portable consumer electronics

TPS727xx reference design application circuit:

Figure 1 TPS727xx internal structure diagram

The TPS727xx devices belong to a family of LDO regulators that consume extremely low quiescent current while evening delivering excellent PSRR with very little headroom (VIN - VOUT differential voltage), and very good transient response. These features, combined with low noise without a noise reduction Pin in an ultrasmall package, make these devices ideal for portable applications.

Figure 2 TPS727xx reference design

The TPS727xx family of low-dropout (LDO) linear regulators are ultralow quiescent current LDOs with excellent line and ultra-fast load transient performance and are designed for power-sensitive applications.

TPS727xx Chinese data sheet: Click to download

More schematics and source code popular application circuit: click now

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