Features • 2.25V to 5.5V Input Voltage Range • 1.8V Fixed Output Voltage • 800 mA Output Load Current • +/- 2.5% VOUT Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C • Stable with tiny 10 µF ceramic capacitors • 0.20% Output Voltage Load Regulation from 10 mA to 800 mA • Enable pin • ^Error Flag Indicates Status of Output Voltage • 1 µA of Quiescent current in Shutdown • 40dB of PSRR at 100 kHz • Over-Temperature and Over-Current Protection • TO263 and TO-263 THIN Surface Mount Packages Description The LP38511-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is guaranteed at ±2.5% over line, load and full temperature range from -40°C to +125°C. The LP38511-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10uF ceramic capacitors, and has a fixed 1.8V output. An Error Flag feature monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. The LP38511-1.8 provides excellent transient performance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive applications such as servers, routers/switches, and base stations. Applications • Digital Core ASICs, FPGAs, and DSPs • Servers • Routers and Switches • Base Stations • Storage Area Networks • DDR2 Memory

LP38511 Typical Application MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image LP38511 Typical Application	Block Diagram click for larger image LP38511 Block Diagram
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LP38511-1.8 800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag	357 Kbytes	6-Mar-09	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1675: Application Note 1675 LP38511TS-1.8 Evaluation Board	437 Kbytes	5-Nov-07

More Application Notes

Title		Size	Date	Other Language
	AN-1518: Application Note 1518 LP38513S-1.8 Evaluation Board	295 Kbytes	15-Aug-07
	AN-1676: Application Note 1676 LP38512TS-1.8 Evaluation Board	344 Kbytes	5-Nov-07

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LP38511TJ-1.8	CMOS7	0	18406	0	0	1089000	4	309006723
LP38511TS-1.8	CMOS7	0	18406	0	0	1089000	4	309006723
LP38511TSX-1.8	CMOS7	0	18406	0	0	1089000	4	309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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