Adding an LDO for Increased Standby Mode Efficiency Reference Design
Description
This regulation topology is designed to increase the efficiency of a DC/DC buck converter by disabling the converter during light-load operation and providing a regulated output voltage with a low-Iq LDO. During no-load or light-load conditions: the LDO allows for low-noise: low-Iq output voltage regulation while the DC/DC is disabled. Once the load is engaged: the DC/DC converter can provide high efficiency at high load currents: thereby combining the benefits of both devices.
Features
- High Efficiency output regulation from no load to full load (3A)Ultra-low Iq with no load regulation (DC/DC output ripple less than 10mV peak to peakLDO output noise less than 200 uV RMS: 10Hz to 100kHz3.3% Transient Droop @ 1.2V: 300mA to 3A: 1A/ms
Applications
Product Categories
- Power management
| Download the bill of materials for TIDA-00393 | Download |
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Download the test file for TIDA-00393| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00393 Gerber | 07 Jul 2015 | ZIP | 495 | |
| TIDA-00393 Schematic | 07 Jul 2015 | 118 | ||
| TIDA-00393 BOM | 07 Jul 2015 | 199 |