SD8003是完整的恒流/恒压单节线性锂离子电池充电器。它的包和较低的外部组件使计数在USB电源设计工作规范。不需要外部检测电阻,没有由于内部阻塞二极管是必需的MOSFET的架构。充电电压是固定在4.2 v,电流可以收费在外部编程一个电阻器。充电周期电流下降的时候出现1/10th后浮动后的程序价值电压。封装SOT-23-6L。
特性
可编程电流充电500MA
没有MOSFET,检测电阻或阻塞二极管需要
恒流/恒压操作与热管理
充电率大化
没有过热的风险
费用单芯锂离子电池
直接从USB端口
预设4.2 v充电电压为1%
准确性
自动充电
2.9 v充电阈值
可以在SOT-23-6
应用程序
硬币锂离子电池充电器
便携式MP3播放器,无线耳机
蓝牙应用程序
多功能手表
The LY73XX series is a set of three-terminal, low power, high voltage regulators implemented in CMOS ogy. The series features extremely low quiescent cur-technol-rent which is typically 4uμA. They high as 12V. The device provides large current with aallow input voltages as significantly small dropout voltage.
The LY73XX consists of a high-precision voltage refer- ence, an error correction circuit, and a current limnited output driver. They are available with several fixed out-put voltages ranging from 1.8V to 5.0V. CMOS technol-ogy ensures low dropout voltage and low current consumption. Although designed primarily as fixed volt-age regulators, these devices can be used with external components to generate variable voltages and currents.
Features
UItra low quiescent current: 4μA (typ.)
High input voltage (up to 12V)
Output voltage:1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 5.0V
Output voltage accuracy: tolerance +3%
Maximum output current: 250mA
Low dropout voltage
Low temperature coefficient
package：TO-92, SOT-89-3 SOT23-3
Application
Battery-powered equipment
Voltage regulator for microprocessor
Voltage regulator for L AN cards
Wireless Communication equipment
Audio/Video equipment
LY76XX serieslow-dropoutlinear voltage regulators with a built-in voltage reference module, error correction module and phase compensation module. LY76XX series are based on the CMOS process and allow high voltage input with low quiescent current. This series can deliver 100mA output current and allow an input voltage as high as 40V.This series has the function of internal feedback resistor setting from 2.1Vto 12V. The output accuracy is t 2%.
Features
High output accuracy:土2%
Input voltage: up to 40 V
Output voltage: 2.1V ~ 12V
Utralow quiescent current (Typ.=3μA) Output Current: lour= 100mA
(When VIN = 5.5V and Vout =3.3V)Low temperature cofficient
Ceramic capacitor can be used
Package: SOT89-3. T092、SOT23-3
Typical Application
Electronic weighbridge
SCM
Phones, cordless phones
Security Products
Water meters, power meters
