800 MA Fast-Response High-Accuracy Adjustable LDO Linear Regulator With Enable And Soft-Start

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 N-MOS Power Transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of this device makes it suitable for use in powering DSP Microcontroller Core voltages and Switch Mode Power Supply post Regulators The part is available in PSOP 8pin, TO-220 7pin, and TO-263 7-pin packages.
Dropout Voltage: 115 mV (typical) at 800 mA load current.
Low Ground Pin Current: 10 mA (typical) at 800 mA load current.
Soft-Start: Programmable Soft-Start time.
Precision ADJ Voltage: 1.5% for TJ = 25C, and 2.0% for 0C d TJ d +125C, across all line and load conditions
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LP38851S-ADJ/NOPB Texas Instruments 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 7-DDPAK/TO-263 -40 to 125
LP38851MR-ADJ/NOPB Texas Instruments 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125
LP38851SX-ADJ/NOPB Texas Instruments 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 7-DDPAK/TO-263 -40 to 125
LP38851T-ADJ/NOPB Texas Instruments 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 7-TO-220 -40 to 125
LP38851MRX-ADJ/NOPB Texas Instruments 800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125
LP38851 's PackagesLP38851 's pdf datasheet
LP38851MR-ADJ PSOP
LP38851MRX-ADJ PSOP
LP38851T-ADJ TO-220
LP38851S-ADJ TO-263
LP38851SX-ADJ TO-263




LP38851 Pinout, Pinouts
LP38851 pinout,Pin out
This is one package pinout of LP38851,If you need more pinouts please download LP38851's pdf datasheet.

LP38851 Application circuits
LP38851 circuits
This is one application circuit of LP38851,If you need more circuits,please download LP38851's pdf datasheet.


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