LY7136F是线性恒流LED驱动电路，输入高耐压18V,通过外接MOS管可以增大输出电流，大可以输出2A。

    特点

1、输出电流：10mA-1A与外部电阻可调

2、电流和电压范围可通过增加一个外部NMOS或NPN晶体管 

3、电源电压：2.7-18v

4、低压降电压50mV @ 1A

5、低静态电流：80uA电流

6、软启动

7、2.5V低电压保护：

8、sot-89-5封装

   用途：LED照明

LY73XX  

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   

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

LY6118  

封装： SOT223    TO252