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| 型号： | SP6648ER-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC 3.3V/ADJ 10DFN |
| 标准包装： | 3,000 |
| 类型： | 升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 3.3V，2 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 4.5 V |
| PWM 型： | 电压模式 |
| 电流 - 输出： | 400mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
SP6648
Ultra-low Quiescent Current,
High Efficiency Boost Regulator
FEATURES
VBATT 1 10 V
SP6648
10 Pin DFN
■ Ultra-low12μAQuiescentCurrent
■ 400mA Output Current at 2.6V Input: 3.3V OUT
■ 94% Efficiency from 2 Cell to 3.3V OUT
■ Wide Input Operating Voltage: 0.85V to 4.5V
■ 3.3V Fixed or Adjustable Output
■ Integrated Synchronous Rectifier: 0.3 Ω
■ 0.3 Ω 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
OUT
LBI 2 9 LX
LBON 3 8 P
GND
RLIM 4 7 GND
SHDN 5 6 FB
Now Available in Lead Free Packaging
APPLICATIONS
■ Camera Flash LED Driver
■ Wireless Mouse
■ PDA's
■ Pagers
■ Medical Monitors
■ Handheld Portable Devices
■ MP3 Players
DESCRIPTION
The SP6648 is an ultra-low quiescent current, high efficiency step-up DC-DC converter ideal for
single cell, dual cell alkaline and Li- I on battery applications such as digital still cameras, PDAs,
MP3 players, and other portable devices. The SP6648 combines the high-load efficiency
associated with PWM control, with the low quiescent current and excellent light-load efficiency
of PFM control. The SP6648 features 12 μ A quiescent current, synchronous rectification, a 0.3 Ω
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.
TYPICAL APPLICATION CIRCUIT
500
10 μ H
450
V BATT
+
47 μ F
400
350
10
LX 9
P GND 8
GND 7
R LIM
LBI
LBON
SHDN
SP6648
1
V BATT V OUT
2
LBI
3
LBON
4
5 SHDN FB 6
1 μ F
205K
47pF
+
47 μ F
3.3V OUT
300
250
200
150
100
50
Vout=3.3V, Ipk=0.85A
Vout=5.0V, Ipk=0.85A
1.87K
124K
0
1.0
1.5
2.0
2.5 3.0
3.5
4.0
4.5
Vin (V)
Maximum Load Current in Operation
Date: 6/7/06 Rev B
SP6648 Ultra-low Quiescent Current, High Efficiency Boost Regulator
1
? 2006 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6648EU | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP6648EU/TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP6648EU-L | 功能描述:DC/DC 开关控制器 0.85V-4.5V 400mA temp -40C to 85C RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP6648EU-L/TR | 功能描述:DC/DC 开关控制器 Ultra-low Quiescent High Efficiency RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP6648LED | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
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