TPS7A2133BPYWDJ

TPS7A21 is an ultra-small low-dropout (LDO) linear regulator capable of delivering 500mA output current. The device offers low noise, high PSRR, and excellent load and line transient performance, meeting the requirements of RF and other sensitive analog circuits. An innovative design technique enables low-noise performance without requiring an external noise bypass capacitor. With low quiescent current, the TPS7A21 is well-suited for battery-powered systems. An input voltage range of 2.0V to 6.0V and an output voltage range of 0.8V to 5.5V accommodate a wide variety of system requirements. An internal precision reference circuit delivers outstanding accuracy, with a maximum output voltage tolerance of 1.5% across load, line, and temperature ranges. An internal soft-start circuit helps control inrush current, thereby minimizing input voltage droop during startup. This LDO remains stable with small ceramic capacitors, enabling a compact overall solution. An intelligent enable input circuit with an internal pull-down resistor keeps the LDO disabled even when the EN pin is left unconnected, eliminating the need for an external component to pull down the EN input.

Applications

• Mobile phones and tablets
• Wearable devices
• IP cameras
• Portable medical devices
• Smart meters and field transmitters
• RF, PLL, VCO, and clock power supplies
• Motor drivers

Key features

• Ultra-low IQ: 6.5 μA
• Input voltage range: 2.0V to 6.0V
• Output voltage range: 0.8V to 5.5V (50 mV steps)
• High PSRR: 91dB at 1kHz
• Low output voltage noise: 7.7 μV RMS
• Low dropout: 175 mV (max) at 500 mA (2.5V VOUT)
• Output voltage accuracy: ±1.5% (line, load, and temperature range)
• Wide ceramic capacitor support: 1 μF to 200 μF
• Operating junction temperature: -40℃ to +125℃
• Package: Tiny 0.602mm × 0.602mm DSBGA package