ME5102是一款集成BOOST升压模块，带防失真功 能，4W高效率的单声道D类音频功率放大器。 ME5102内置的升压电路可以通过外置反馈电阻自
由设置升压值,可以在锂电池容量和输出电流能力之间获 得佳平衡。内置防失真功能，可检测并抑制由于输入信 号幅度过大所引起的输出信号削顶失真(破音)，显著提 高音质，创造非常舒适的听音享受，并保护扬声器免受过 载损坏。电路设计可以通过软件或者硬件设置放大器在防 失真模式和普通模式任意切换。软件模式是通过一线脉冲 控制，硬件模式是通过电平控制。应用非常灵活。 ME5102采用先进的技术,在全带宽范围内抑制EMI 干扰，大限度地减少对其他电路模块的影响。免滤波器 数字调制技术，可以直接驱动扬声器，并大程度减小脉 冲输出信号的失真和噪音。输出无需滤波网络，极少的外 部元器件节省了系统空间和成本,是便携式应用的理想选择。
ME5102在3.7V的工作电压时，能够向3Q负载提 供4W的输出功率。内置过流保护、过热保护及欠压保 护功能，有效地保护芯片在异常工作状况下不被损坏。
应用场合：便携式音箱 插卡式2.1音箱 移动2.1音箱 蓝牙音箱 扩音器
封装形式：8- pin ESOP8
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
