National LP38691 LP38693 Data Sheet
Summary
These high-performance Low Dropout CMOS Linear Regulators are designed for stable power management in demanding electronics, including battery-powered devices, notebook computers, and instrumentation. Featuring excellent output tolerance, wide input voltage ranges, and operational stability down to -40°C, they ensure reliable power even under extreme conditions. This technical manual provides comprehensive specifications, pin descriptions, various package options (LLP, TO-252, SOT-223), and detailed application circuits necessary for seamless integration by hardware engineers and embedded system designers.
Manual Details
| Brand | National |
|---|---|
| Pages | 16 |
| File Size | 767.28 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the typical regulated output current and voltage?
The device provides a minimum dropout voltage of 250 mV typ., typically supporting 500mA at 5V out.
How should the 6-Lead LLP package be used for optimal performance?
For full operation, both V pins must be tied together, and soldering the ground pad to a copper plane allows it to function as a heat sink.
What is the purpose of the SNS (Output sense) pin?
The Sense pin enables remote sensing at the load, which eliminates output voltage errors caused by resistance in interconnecting traces.
What operating temperature range are guaranteed for this regulator?
The specified guaranteeing operational temperatures range from -40°C to +125°C.