LP38798 Features: Ultra-low output noise: 5μVRMS (10Hz to 100kHz); current limit and overtemperature protection; excellent linear and load transient response; wide operating input voltage range: 3.0V to 20V
LP38798 Typical Applications: RF and VCO Power Supplies; Wireless LAN Devices; Wireless Cable Modems; Low Noise Post Rectifiers
LP38798 Reference Design Application Circuit:
Figure 1 Internal structure of LP38798
The LP38798-ADJ is a high-performance linear regulator capable of 800 mA output current regulator capable of 800 mA output current RF/Analog circuitry, the LP38798-ADJ implements a novel linear topology on an advanced CMOS process to deliver ultra-low output Noise and high PSRR at switching power supply frequencies.
Figure 2LP38798 reference design
The LP38798 is a positive voltage (20 V), ultra-low-noise (5 μVRMS), low-dropout (LDO) regulator capable of a well-regulated, low-noise voltage to an 800-mA load. The LP38798 uses an Advanced design with a CMOS process to deliver ultra low output noise and high PSRR at switching power supply (SMPS) frequencies.
LP38798 Datasheet: Click to download
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