ADP2102: Low Duty Cycle, 600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter
The ADP2102 is a synchronous step-down dc-to-dc converter that converts a 2.7 V to 5.5 V unregulated input voltage to a lower regulated output voltage with up to 95% efficiency and 1% accuracy. The low duty cycle capability of the ADP2102 is ideal for USB applications or 5 V systems that power up submicron subvolt processor cores. Its 3 MHz typical operating frequency and excel-lent transient response allow the use of small, low cost 1 μH inductors and 2.2 μF ceramic capacitors. At medium-to-high load currents, it uses a current mode, pseudofixed frequency pulse-width modulation to extend battery life. To ensure the longest battery life in portable applications, the ADP2102 has a power save mode (PSM) that reduces the switching frequency under light load conditions to significantly reduce quiescent current.
The ADP2102 is available in both fixed and adjustable output voltage options with 600 mA maximum output current. The preset output voltage options voltage are 1.875 V, 1.8 V, 1.5 V, 1.375 V, 1.25 V, 1.2 V, 1.0 V, and 0.8 V. The adjustable voltage option is available from 0.8 V to 3.3 V. The ADP2102 requires only three external components and consumes 0.01 μA in shutdown mode.The ADP2102 is available in an 8-lead LFCSP package and is specified for the −40 °C to +85 °C
技术特性
- 输入电压范围：2.7 V至5.5 V
- 最大负载电流：600 mA
- 效率：95%
- 低占空比工作
- 只需3个小型外部陶瓷器件
- 工作频率：3 MHz（典型值）
- 固定输出电压：0.8 V至1.875 V
- 可调输出电压最高可达3.3 V
- 关断电源电流：0.01 μA
- 自动省电模式
- 内置同步整流器
- 内部软启动
|
功能框图
应用领域
- USB powered devices
- WLAN and gateways
- Point of loads
- Processor core power from 5 V
- Digital cameras
- PDAs and palmtop computers
- Portable media players, GPS
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订购指南
| 产品型号 |
封装 |
引脚 |
温度范围 |
包装和数量 |
报价*(100-499) |
报价*1000 pcs |
RoHS |
| ADP2102YCPZ-0.8-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.0-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.2-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.25R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.37R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.5-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.8-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-1.87R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-2-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-3-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
| ADP2102YCPZ-4-R7 产品状态: 量产 |
8 ld LFCSP (3x3mm) |
8 |
工业 |
Reel, 1500 |
- |
$ 1.23 |
Y 材料信息 |
开发工具
| 产品型号 |
描述 |
报价 |
RoHS |
| ADP2102-0.8-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.0-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.25-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.2-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.375EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.5-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.875EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1.8-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-1-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-2-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-3-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
| ADP2102-4-EVALZ 产品状态: 量产 |
Evaluation Board |
$ 60.72 |
是 |
ADP2102 应用技术支持与电子电路设计开发资源下载
- ADP2102 数据手册DataSheet 下载 . pdf(Rev B, 09/2007 pdf 785kB)
- ADI 模拟器件公司比较器产品选型指南 . pdf
- Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf
