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LP38851MR-ADJ/NOPB |LP38851MRADJNOPBNSCN/a5avai800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125


LP38851MR-ADJ/NOPB ,800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125FEATURES DESCRIPTIONThe LP38851-ADJ is a high current, fast response2• Adjustable V Range of 0.80V ..
LP38853MR-ADJ ,3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125Features 3 DescriptionThe LP38853 is a high-current, fast-response1• Wide V Supply Operating Range: ..
LP38853SADJ ,3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 7-DDPAK/TO-263 -40 to 125Maximum Ratings may cause permanent damage to the device. These are stress ratingsonly, which do no ..
LP38855S-1.2 ,1.5A Fast-Response High-Accuracy LDO Linear Regulator with Enable 5-DDPAK/TO-263 -40 to 125FEATURES DESCRIPTIONThe LP38855 is a high-current, fast-response2• Standard V Values of 0.8V and 1. ..
LP38856S-1.2 , 3A Fast-Response High-Accuracy LDO Linear Regulator with Enable
LP38858S-1.2 ,1.5A Fast-Response High-Accuracy LDO Linear Regulator with Soft-Start 5-DDPAK/TO-263 -40 to 125FEATURES DESCRIPTIONThe LP38858 is a high current, fast response2• Standard V Values of 0.8V and 1. ..
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LP38851MR-ADJ/NOPB
800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start
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
Checkfor Samples: LP38851
1FEATURES DESCRIPTION

The LP38851-ADJisa high current, fast response Adjustable VOUT Rangeof 0.80Vto 1.8V regulator which can maintain output voltage• Wide VBIAS Supply Operating Rangeof 3.0Vto regulation with extremely low inputto output voltage5.5V drop. Fabricated ona CMOS process, the device Stable with10µF Ceramic Capacitors operates from two input voltages: VBIAS provides
voltage to drive the gate of the N-MOS power• Dropout Voltageof 115 mV (Typical)at 800 mA transistor, while VIN is the input voltage whichLoad Current supplies powerto the load. The useof an external• Precision VADJ across All Line and Load bias rail allows the partto operate from ultra low VINConditions: voltages. Unlike bipolar regulators, the CMOS
architecture consumes extremely low quiescent– ±1.5% VADJ forTJ= 25°C
currentat any output load current. The useof an N-– ±2.0% VADJ for 0°C≤TJ≤ +125°C MOS power transistor resultsin wide bandwidth, yet– ±3.0% VADJ for -40°C≤TJ≤ +125°C minimum external capacitanceis requiredto maintain Over-Temperature and Over-Current loop stability.
Protection
The fast transient responseof this device makesit Availablein 8-Lead SO PowerPad, suitable for use in powering DSP, Microcontroller
7-Lead SFM and 7-Lead PFM Packages
Core voltages and Switch Mode Power Supply post
regulators. The partis availablein PSOP 8–pin, SFM• −40°Cto +125°C Operating Junction 7–pin, and TO-263 7-pin packages.Temperature Range Dropout Voltage: 115 mV (typical)at 800 mA
load currentAPPLICATIONS Low Ground Pin Current:10 mA (typical)at 800• ASIC Power Supplies in: mA load current Desktops, Notebooks, and Graphics Cards, Soft-Start: Programmable Soft-Start timeServers Precision ADJ Voltage: ±1.5% for TJ= 25°C,– Gaming Set Top Boxes, Printers and and ±2.0% for 0°C≤TJ≤ +125°C, acrossall line
Copiers and load conditions Supplies
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