TPS7433D

This device is designed to have a fast transient response and be stable with 1-μF capacitors. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV at an output current of 200 mA for the TPS7433). This LDO family also features a sleep mode; applying a TTL high signal to EN（overline） (enable) shuts down the regulator, reducing the quiescent current to less than 1 μA at junction temperature TJ = 25℃. The TPS74xx is offered in 1.5-V, 1.8-V, 2.5-V, 3-V, and 3.3-V. Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS74xx family is available in 8 pin SOIC package.

Key features

• 200mA maximum output current
• Available output voltage options: 1.5V, 1.8V, 2.5V, 3V, 3.3V
• Dropout voltage as low as 170mV at 200mA output for TPS7433
• 3% output voltage tolerance under specified conditions; 3% maximum output voltage tolerance over full line, load, and temperature range
• 8-pin SOIC package
• Thermal shutdown protection
• Built-in sleep mode: regulator shuts down when EN pin is driven TTL-high, quiescent current drops to less than 1μA at 25℃ junction temperature
• Peak output current limited by internal circuitry
• Input voltage range: -0.3V to 8V maximum
• EN pin voltage range: -0.3V to VIN +0.3V
• Operating junction temperature range: -40℃ to 125℃
• Storage temperature range: -65℃ to 150℃
• Stable operation at zero load; no minimum load requirement
• SENSE pin must be connected to regulator output for proper device operation