Small: High-Efficiency Split-Rail Supply Reference Design for Portable Audio Applications
Description
Differential Headphone amplifiers require positive and negative voltages. In this reference design: both voltages are generated from a single input voltage with an all integrated split-rail converter. It only requires one inductor and a minimal amount of external components to achieve a high efficiency power supply that keeps the distortion of the system very low. End users benefit from High Fidelity audio performances with longer playback time in their mobile application.
Features
- 90% Peak EfficiencyTiny solution size: 5.9x6.9 mmLow Distortion: THD+N Programmable outputsSmall BOM — only 7 external components requiredThis circuit design is tested. All necessary software: a Test Report and a Design File are included.
Applications
- Clinical pulse oximeter
- Endoscope
- Infusion pump
- CPAP machine
- Electronic thermometer
- Fitness machine
- Wearable fitness & activity monitor
- Aircraft cockpit display
- Interconnect/distribution box
- Electronic hospital bed & bed control
- Mother & neonatal care monitor
- Electric toothbrush
- Motorized electronic wheel chair
- Clinical digital thermometer
- Medical chair & table
- Digital stethoscope
- Oxygen concentrator
- Blood pressure monitor
- Chromebook & WOA
- Circuit breaker (ACB
- MCCB
- VCB)
- Standard notebook PC
- Ultrasound scanner
- Operation tables
- Dental chairs
Product Categories
- Power management
| Title | Updated | Type | Size (KB) |
|---|---|---|---|
| Small High-Efficiency Split-Rail Supply for Portable Audio Applications | 02 Jun 2015 | 1005 |
| Download the bill of materials for PMP9781 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for PMP9781| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP9781 Gerber | 06 Aug 2015 | ZIP | 436 | |
| PMP9781 PCB | 06 Aug 2015 | 554 | ||
| PMP9781 BOM | 06 Aug 2015 | 16 | ||
| PMP9781 Schematic | 06 Aug 2015 | 112 |