SD3312A是一款采用轻触开关控制，可实现4种模式设定，模式内按轻触开关切换功能的LED控制IC.芯片内部集成具有防抖功能的按键输入信号检测电路，可实现对轻触开关的检测，通过轻触开关控制LED完成功能的变化。无需通过MCU编程即可实现多功能LED驱动应用。

特性:
v 4 种工作模式设定，模式内轻触开关换挡
v 工作电压： 2.5V~5V
v 工作效率高达 92%
v 高达 1.8A 的电流驱动能力
v 大 2μA 睡眠模式电流
v 内置 NMOS 可直接驱动 1~5W LED
v 防电池反接保护功能
v 防负载短路保护功能
v SOT23-6 绿色封装

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