折腾：
期间，对于：
中的：
SQ7IB
去找找是什么芯片。
SQ7IB
SQ7I8
SQ71B
都搜不到
后来参考：
三款天猫精灵智能音箱拆解对比：天猫精灵X1、M1、方糖 – 我爱音频网
“
圣邦威电子 SGM2036 300mA输出低压差稳压器。输出多种固定电压可选。”
-》猜测此处也是：
圣邦威电子 SGM2036
只不过是marking不同？
果然看到：
“
圣邦威电子 SGM2036 300mA输出低压差稳压器。输出多种固定电压可选。
”
所以去搜：
sgmicro SQ17B
搜不到。
-》
MODEL
PACKAGE DESCRIPTION
ORDERING NUMBER
PACKAGE MARKING
PACKING OPTION
SGM2036-3.1
3.1
SOT-23-5
SGM2036-3.1YN5G/TR
SQ1XX
Tape and Reel, 3000
-》
原来是：
SGM2036
中的
输出电压是3.1V的
SGM2036-3.1
对外package marking
SGM2036 300mA, Low Power, Low Dropout, RF Linear Regulators
GENERAL DESCRIPTION
The SGM2036 series low-power, low-dropout, CMOS linear voltage regulators operate from a 1.6V to 5.5V input voltage and deliver up to 300mA output current. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The SGM2036 series also offer low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2036 series’ low output noise and high PSRR.
Other features include a 10nA logic-controlled shutdown mode, short current limit and thermal shutdown protection.
The SGM2036 has auto-discharge function to quickly discharge VOUT in the disable status.
The SGM2036 is available in Green UTDFN-1×1-4L, SOT-23-5 and SC70-5 packages. It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES
• Low Dropout Voltage
• Thermal Overload Protection
• Built-In Fold Back Protection Circuit
• 20μA Low Ground Current
• 10nA Logic-Controlled Shutdown
• 1.6V to 5.5V Input Voltage Range
• Fixed Outputs of 0.8V, 0.9V, 1.0V, 1.05V, 1.1V, 1.2V,
1.3V, 1.35V, 1.5V, 1.8V, 1.85V, 2.1V, 2.2V, 2.3V, 2.5V, 2.6V,
2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.3V, 3.6V, 4.2V,
4.4V and 5.0V
• Adjustable Output from 0.8V to 5.0V
• Short Auto-Discharge Function
• 300mA Output Current
• High Output Voltage Accuracy
• Quick Start-Up Time
• -40℃ to +85℃ Operating Temperature Range
• Available in Green UTDFN-1×1-4L, SOT-23-5 and SC70-5 packages
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
SGMICRO SGM2036-ADJYN5G/TR – PDF Datasheet – Low Dropout Regulators(LDO) In Stock |
价格：$0.0681/片
Attribute Value Search
Category：Power Management ICs/Low Dropout Regulators(LDO)
RoHS
Package：SOT-23-5
Manufacturer：SGMICRO
Brand Category：Made In Asia Brands
【总结】
电路板上的：
SQ7IB
网上找不到。
后来是参考了：
三款天猫精灵智能音箱拆解对比：天猫精灵X1、M1、方糖 – 我爱音频网
知道是：
圣邦威电子 sgmicro SGM2036
再去搜，找到资料：
SQ7IB：是
公司：圣邦威电子
英文：sgmicro=sg micro
的一个系列芯片系列：SGM2036
中的，输出电压是3.1V的：SGM2036-3.1
的对外package marking
SGM2036
是什么：输出低压差稳压器
属于类型：
电源管理
Power Management ICs/Low Dropout Regulators(LDO)
功能作用：电压转换，给其他芯片提供合适的电压
封装：SOT-23-5
详细解释：
The SGM2036 series low-power, low-dropout, CMOS linear voltage regulators operate from a 1.6V to 5.5V input voltage and deliver up to 300mA output current. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The SGM2036 series also offer low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2036 series’ low output noise and high PSRR
转载请注明：在路上 » 【整理】芯片：SQ71B 圣邦威电子的电源管理芯片SGM2036