LP38798 Series

800-mA, 20-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable

Catalog

800-mA, 20-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable

Part	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	PSRR	Voltage Dropout (Max) [Max]	Supplier Device Package	Output Type	Package / Case	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Number of Regulators	Protection Features	Current - Output	Control Features	Voltage - Output (Min/Fixed)	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration
Texas Instruments LP38798SDX-ADJ/NOPB	20 V	19.8 V	60 dB	0.42 V	12-WSON (4x4)	Adjustable	12-WFDFN Exposed Pad	2.2 mA	1.4 mA	1	Over Current Over Temperature Short Circuit	800 mA	Enable	1.2 V	Surface Mount	125 °C	-40 °C	Positive

Catalog

800-mA, 20-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable

Key Features

• Wide Operating Input Voltage Range:3 V to 20 VUltra-Low Output Noise: 5 µVRMS(10 Hz to 100 kHz)High PSRR: 90 dB at 10 kHz, 60 dB at 100 kHz±1% Output Voltage Initial Accuracy (TJ= 25°C)Very Low Dropout: 200 mV (Typical) at 800 mAStable with Ceramic or Tantalum Output CapacitorsExcellent Line and Load Transient ResponseCurrent Limit and Overtemperature ProtectionCreate a Custom Design Using the LP38798 With the WEBENCH Power DesignerWide Operating Input Voltage Range:3 V to 20 VUltra-Low Output Noise: 5 µVRMS(10 Hz to 100 kHz)High PSRR: 90 dB at 10 kHz, 60 dB at 100 kHz±1% Output Voltage Initial Accuracy (TJ= 25°C)Very Low Dropout: 200 mV (Typical) at 800 mAStable with Ceramic or Tantalum Output CapacitorsExcellent Line and Load Transient ResponseCurrent Limit and Overtemperature ProtectionCreate a Custom Design Using the LP38798 With the WEBENCH Power Designer

Description

The LP38798-ADJ is a high-performance, low-noise LDO that can supply up to 800 mA output current. Designed to meet the requirements of sensitive 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. The LP38798SD-ADJ is stable with both ceramic and tantalum output capacitors and requires a minimum output capacitance of only 1 µF for stability. The LP38798-ADJ can operate over a wide input voltage range (3 V to 20 V) making it well suited for many post-regulation applications. The LP38798-ADJ is a high-performance, low-noise LDO that can supply up to 800 mA output current. Designed to meet the requirements of sensitive 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. The LP38798SD-ADJ is stable with both ceramic and tantalum output capacitors and requires a minimum output capacitance of only 1 µF for stability. The LP38798-ADJ can operate over a wide input voltage range (3 V to 20 V) making it well suited for many post-regulation applications.