LY2330是一款PWM 工作模式,高效
率、外围简单、内置功率管，适用于12-80V
输入的高精度LED 恒流驱动芯片。输
出大功率可达15W，大电流1.5A。
LY2330 可实现全亮/半亮功能切换，
通过MODE 切换：全亮/半亮/循环模式。
LY2330工作频率固定在150KHZ 左
右，同时内置抖频电路，可以降低对其他
设备的EMI 干扰。另外采用平均电流采样
模式，可以提高宽输入电压情况下的电流
精度。
LY2330 带有输出短路保护功能，
12V～80V 输入条件下，短时短路不会损
坏电源器件。
低压差无过冲，解决了市面上芯片低压差过冲电流上升烧灯
珠的过温保护灭灯的缺点。芯片内部自带过温保护和输出短路保护!
产品特点
宽输入电压范围：12V～80V
可设定电流范围：10mA～1500mA
固定工作频率：150KHZ
内置抖频电路，降低对其他设备的EMI
干扰
平均电流模式采样，恒流精度更高
0-100%占空比控制，无电流节点跳变
输出短路保护
功能模式：全亮/半亮
ESOP8 封装
应用领域
?LED手电筒
?汽车灯照明
?大功率LED驱动
?太阳能照明系统
?电动车，摩托车灯照明
?LED汽车工作灯
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
