Datasheet Texas Instruments LP38851S-ADJ/NOPB — Datenblatt

LP38851
www.ti.com SNVS492C – JUNE 2007 – REVISED APRIL 2013 LP38851 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with
Enable and Soft-Start
Check for Samples: LP38851 FEATURES DESCRIPTION The LP38851-ADJ is a high current, fast response
regulator which can maintain output voltage
regulation with extremely low input to output voltage
drop. Fabricated on a CMOS process, the device
operates from two input voltages: VBIAS provides
voltage to drive the gate of the N-MOS power
transistor, while VIN is the input voltage which
supplies power to the load. The use of an external
bias rail allows the part to operate from ultra low VIN
voltages. Unlike bipolar regulators, the CMOS
architecture consumes extremely low quiescent
current at any output load current. The use of an NMOS power transistor results in wide bandwidth, yet
minimum external capacitance is required to maintain
loop stability. 1 2 Adjustable VOUT Range of 0.80V to 1.8V
Wide VBIAS Supply Operating Range of 3.0V to
5.5V
Stable with 10ВµF Ceramic Capacitors
Dropout Voltage of 115 mV (Typical) at 800 mA
Load Current
Precision VADJ across All Line and Load …