SD6273是一个高效，固定开关频率，PWM控制的DC/DC升压控制器。它为单芯锂电池升压到5V输出提供一个简便易用的电源解决方案。其内置补偿电路及保护电路，以减少外围组件。 SD6273高达1.2MHz的开关频率可使电感和输出电容小型化，从而节约PCB面积以适应电池供电的应用系统。SD6273内置了过温保护、输出短路保护及soft start电路。
SD6273采用符合RoHS规范及Pb-Free的小尺寸SOT23-5封装。
特点
• 2.7V～5.5V输入电压范围
• 效率高达90％
• 1.2MHz的固定开关频率
• 外部组件小型化
• 输出短路保护
• 关断电流小于1μA
• 单芯锂电池输入，输出5V
• SOT23-5封装
• 符合RoHS规范，Pb-Free及Halogen-Free
应用
• 单芯锂电池输入，5V输出系统
• 掌上型设备
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
