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AP5724
Description
This is a Boost LED driver designed drive white LED with constant current. It can drive 2 ~ 6 LED in a series connection from a single Li-Ion cell ensuring uniform brightness in small screen backlighting applications. The device also supports a single feedback of parallel connected multiple strings of LEDs for driving higher number of LEDs. It is available in SOT26, low profile TSOT23-6 and the extremely thin and small footprint DFN2020C-6.Features and Benefits
• Inherently Matched LED Current• High Efficiency: 84% Typical
• Fast 1.2MHz Switching Frequency
• Current limit and UVLO Protections
• Internal Thermal Shutdown
• Internal Over Voltage Protection
• Integrated Soft-start Function
• SOT26 and DFN2020C-6: Available in “Green” Molding Compound (No Br, Sb)
• Lead Free Finish/RoHS Compliant
Applications
• Portable Navigation Device/GPS receiver,• PMP4 player,
• Portable Media Players,
• Digital Photo Frames,
• Digital Radio Displays,
• Mobile phones/PDA
Product Overview Specs
| Part Number | AP5724 |
| Min and Max Input Voltage (V) | 2.7 - 5.5 |
| Output Voltage (V) | 26 |
| Frequency (kHz) typ | 1.2 |
| Efficiency (%) | 84 |
| Quiescent Current (mA) typ | 2 |
| Standby Quiescent Current (uA) typ | 1 |
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Package Outline Information
- SOT26
- TSOT23-6
- DFN2020C-6
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