SD8058是一款完整的单节锂离子电池充电器，带电池正负极反接保护反接，具有更大600mA 的充电电流，更稳定的电流一致性。其采用恒定电流/恒定电压线性控制，SOT23-5封装与较少的外部元件数目使得 成为便携式应用的理想选择。 可以适合USB电源和适配器电源工作。
SD8058是一款完整的单节锂离子电池充电器，带电池正负极反接保护反接，具有更大 600mA 的充电电流，更稳定的电流一致性。其采用恒定电流/恒定电压线性控制，SOT 封装与较少的外部元件数目使得 成为便携式应用的理想选择。 可以适合 USB 电源和适配器电源工作。由于采用了内部 PMOSFET 架构，加上防倒充电路，所以不需要外部检测电阻器和隔离二极管。热反馈可对充电电流进行自动调节，以便在大功率操作或高环境温度条件下对芯片温度加以限制。充满电压固定于 4.2V，而充电电流可通过一个电阻器进行外部设置。当电池达到 4.2V 之后，充电电流降至设定值 1/10， 将自动终止充电。当输入电压（交流适配器或 USB 电源）被拿掉时， 自动进入一个低电流状态，电池漏电流在 2uA 以下。 的其他特点包括充电电流监控器、欠压闭锁、自
动再充电和一个用于指示充电结束和输入电压接入的状态引脚。
特点：
*锂电池正负极反接保护；
*高达 600mA 的可编程充电电流；
*无需 MOSFET、检测电阻器或隔离二极管；
*用于单节锂离子电池
*恒定电流/恒定电压操作，并具有可在无过热危险的情况下实现充电速率大化的热调节功能；
*可直接从 USB 端口给单节锂离子电池充电；
*高输入可达 9V；
*精度达到±1%的 4.2V 预设充电电压；
*自动再充电；
*1 个充电状态开漏输出引脚；
*C/10 充电终止；
*待机模式下的供电电流为 145uA；
*2.9V涓流充电；
*软启动限制了浪涌电流；
*采用 5 引脚 SOT-23 封装。
应用
*充电座、移动电源
*蜂窝电话、PDA、MP3播放器
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
