TPS7A37

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS7A37 SBVS220B – MARCH 2013 – REVISED AUGUST 2015 TPS7A37 1% High-Accuracy, 1-A, Low-Dropout Regulator With Reverse Current Protection 1 Features 1 Stable with 1-μF or Larger Ceramic Output Capacitor Input Voltage Range: 2.2 V to 5.5 V Ultralow Dropout Voltage: – 200-mV Maximum at 1 A Excellent Load Transient Response—Even With Only 1-μF Output Capacitor NMOS Topology Delivers Low Reverse Leakage Current Excellent Accuracy: – 0.23% Nominal Accuracy – 1% Overall Accuracy Over Line, Over Load, and Over Temperature Less Than 20-nA typical IQ in Shutdown Mode Thermal Shutdown and Current Limit for Fault Protection 2 Applications Point of Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors Post-Regulation for Switching Supplies Portable and Battery-Powered Equipment SPACE Typical Application Circuit (Adjustable Version) Optional VIN IN OUT VOUT TPS7A3701 1.0 mF EN GND FB OFF ON 3 Description The TPS7A37 family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing a wide variety of load configurations. Load transient response is excellent, even with a small 1-μF ceramic output capacitor. The NMOS topology also allows very low dropout. The TPS7A37 family uses an advanced BiCMOS process to yield high precision while d...