TPS7A3701DRVT

The TPS7A37 series low-dropout (LDO) linear regulators use an N-channel metal-oxide-semiconductor (NMOS) pass element in a voltage-follower configuration. This topology offers relatively low sensitivity to output capacitance values and equivalent series resistance (ESR), enabling a wide variety of load configurations. Load transient response is excellent, even when operating with small 1μF ceramic output capacitors. The NMOS topology also enables an extremely low dropout voltage. The TPS7A37 series employs an advanced bipolar complementary metal-oxide-semiconductor (BiCMOS) process, delivering high accuracy while maintaining very low dropout voltage and low ground pin current. Current consumption in the disabled state is less than 20nA, making these devices well suited for portable applications. These devices are protected by thermal shutdown and foldback current limiting.

Applications

• Point-of-load regulation for DSP, FPGA, ASIC, and microprocessors
• Post-regulation for switching power supplies
• Portable and battery-powered devices

Key features

• Stable with 1μF or larger ceramic output capacitors
• Input voltage range: 2.2V to 5.5V
• Ultra-low dropout voltage: 200mV maximum at 1A
• Excellent load transient response — even with output capacitance as low as 1μF
• NMOS topology for low reverse leakage current
• Outstanding accuracy: 0.23% nominal accuracy, 1% total accuracy over full line, load, and temperature range
• Typical IQ less than 20nA in shutdown mode
• Thermal shutdown and current limiting for fault protection