SP34063 单/双极 Alkaline电池，高效放大直流到直流（DC-DC）调节器
The SP34063 is an ultra-low quiescent current, high efficiency step-up DC-DC converter ideal for single cell, dual cell alkaline and Li-Ion battery applications such as digital still cameras, PDAs, MP3 players, and other portable devices. The SP34063 combines the high-load efficiency associated with PWM control, with the low quiescent current and excellent light-load efficiency of PFM control. The SP34063 features 12μA quiescent current, synchronous rectification, a 0.3Ω charging switch, anti-ringing inductor switch, programmable low-battery detect, under-voltage lockout and programmable inductor peak current. The device can be controlled by a 1nA active LOW shutdown pin.
技术特性
- Ultra-low 12µA Quiescent Current
- 400mA Output Current at 2.6V Input: 3.3VOUT
- 94% Efficiency from 2 cell to 3.3VOUT
- Wide Input Voltage Range: 0.85V to 4.5V
- 3.3V Fixed or Adjustable Output
- Integrated Synchronous Rectifier: 0.3Ω
- 0.3Ω Switch
- Anti-Ringing Switch Technology
- Programmable Inductor Peak Current
- Logic Shutdown Control
- Under Voltage Lock-Out at 0.61V
- Programmable Low Battery Detect
- Single or Dual Cell Alkaline
- Small 10 pin DFN Package and Industry Standard 10 pin MSOP
应用领域 APPLICATION
- Camera Flash LED Driver
- Wireless Mouse
- PDA's
- Pagers
- Medical Monitors
- Handheld Portable Devices
- MP3 Players
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技术指标
| 输出电流(mA) |
400 |
| 最低输入电压(V) |
0.7 |
| 最高输入电压(V) |
4.5 |
| 静态电流(µA) |
13 |
| 最低输出电压(V) |
2 |
| 最高输出电压(V) |
5.5 |
| 效率(%) |
94 |
| 说明书 |
固定的 3.3V电压 |
功能框图 Functional Block Diagram
订购信息 Ordering Information
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