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Overview
| Topology | Boost Converter |
| Input voltage | 2.7-4.5 V |
| Output 1 | 5.5 V / 0.8 A |
| IC revision | 2.0.0 |
Description
The SP7648 is an ultra-low quiescent current,high efficiency step-up DC-DC converter idealfor single cell Li-Ion or dual cell alkalinebattery applications to drive various LEDs. TheSP7648 combines low quiescent current andexcellent light-load efficiency of PFM control.The SP7648 features synchronous rectification,a 0.3 charging switch, an anti-ringinginductor switch, under-voltage lockout andprogrammable inductor peak current. Thedevice can be shut down by a 1nA active LOWshutdown pin. A very low 0.288V referencevoltage is optimized for driving a constantcurrent load.
Features
- True Shutdown
- 700mA Output Current at 3.3V Input; 4.2V output
- 92% Efficiency from 2.7VIN to 3.3VOUT
- 2.7V to 4.5V Wide Input Voltage Range
- 5V Fixed or Adjustable Output0.3ohm Switch
- Integrated Synchronous Rectifier:0.3
- Anti-Ringing Switch Technology
- Programmable Inductor Peak Current
- Logic Shutdown Control
- Low 0.8V or 0.288V Reference Voltage
- Small 10-pin DFN and MSOP Package
Typical applications
- LED Driver
- Handheld Portable Devices
- Camera Flash
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744042004 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | 4.7 | 1.72 | 1.65 | 70 | SMT | ||
| 744042006 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | 6.8 | 1.5 | 1.25 | 60 | SMT |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples |
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