产品信息查询
产品 新闻 资料
首页 > 产品中心 > 电源管理 > DC升压型转换器 > DC升压转换 >固定1.2兆赫振荡器频率同步整流器CXSU63139低ESR输出电容稳定电流模式升压调节器92%效率
固定1.2兆赫振荡器频率同步整流器CXSU63139低ESR输出电容稳定电流模式升压调节器92%效率
0

CXSU63139是同步整流器,固定开关频率(典型为1.2兆赫),以及电流模式升压调节器。该设备允许使用USB设备的小电感和输出电容器。电流模式控制方案具有快速的瞬态响应和良好的输出电压精度,在轻负载时,CXSU63139将自动进入脉冲频率调制(PFM)操作,以降低主开关损耗

固定1.2兆赫振荡器频率同步整流器CXSU63139低ESR输出电容稳定电流模式升压调节器92%效率
产品手册
样品申请

样品申请

产品简介

目录uYZ嘉泰姆

1.产品概述                       2.产品特点uYZ嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 uYZ嘉泰姆
5.产品封装图                     6.电路原理图                   uYZ嘉泰姆
7.功能概述                        8.相关产品uYZ嘉泰姆

一,产品概述(General Description)         uYZ嘉泰姆


      The CXSU63139 is a synchronous rectifier, fixed switching frequency (1.2MHz typical), anduYZ嘉泰姆
current-mode step-up regulator. The device allows use of small inductors and output capacitors for USB devices. The current-mode control scheme provides fast transient response and good output voltage accuracy.At light loads, the CXSU63139 will automatically enter in Pulse Frequency Modulation (PFM) operation to reduce the dominant switching losses. During PFM operation,the IC consumes very low quiescent current and maintains high efficiency over the complete load range.uYZ嘉泰姆
      The CXSU63139 also includes current-limit and over-temperature shutdown to prevent damageuYZ嘉泰姆
in the event of an output overload.uYZ嘉泰姆
      The CXSU63139 is available in 4mmx4mm TQFN4x4-16 and DFN3x3-12 packages.uYZ嘉泰姆
二.产品特点(Features)uYZ嘉泰姆


1.)92% Effiicency Synchronous Boost Converter With 1000-mA Output Current FromuYZ嘉泰姆
      1.8V Input
uYZ嘉泰姆
2.)Stable with Low ESR Output CapacitorsuYZ嘉泰姆
3.)Fixed 1.2MHz Oscillator FrequencyuYZ嘉泰姆
4.)Low EMI Converter (Integrated Anti-Ringing Function)uYZ嘉泰姆
5.)Low Battery OutputuYZ嘉泰姆
6.)Integrated Power Save Mode Operation to Improve Light Load EfficiencyuYZ嘉泰姆
7.)Load Disconnected During ShutdownuYZ嘉泰姆
8.)Output Current-Limit ProtectionuYZ嘉泰姆
9.)Over Temperature ProtectionuYZ嘉泰姆
10.)Under Voltage ProtectionuYZ嘉泰姆
11.)Enable/Shutdown FunctionuYZ嘉泰姆
12.)Available in TQFN4x4-16 and DFN3x3-12 PackagesuYZ嘉泰姆
13.)Lead Free and Green Devices Available (RoHS Compliant)uYZ嘉泰姆
三,应用范围 (Applications)uYZ嘉泰姆


Power BankuYZ嘉泰姆
TabletuYZ嘉泰姆
Portable EquimentuYZ嘉泰姆
四.下载产品资料PDF文档 uYZ嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持uYZ嘉泰姆

 QQ截图20160419174301.jpguYZ嘉泰姆

五,产品封装图 (Package)uYZ嘉泰姆


uYZ嘉泰姆

PINuYZ嘉泰姆

NAMEuYZ嘉泰姆

FUNCTIONuYZ嘉泰姆

1,15,16uYZ嘉泰姆

VOUTuYZ嘉泰姆

Converter Output and IC Supply Voltage.uYZ嘉泰姆

2uYZ嘉泰姆

NCuYZ嘉泰姆

Enable in Charge DoneuYZ嘉泰姆
No Internal Connection.uYZ嘉泰姆

3,4uYZ嘉泰姆

SWuYZ嘉泰姆

Converter Switch Pin. Connect inductor here.uYZ嘉泰姆

5,6,7uYZ嘉泰姆

PGNDuYZ嘉泰姆

Enable in Charge DoneuYZ嘉泰姆
Power Ground. Connect these pins to GND.uYZ嘉泰姆

8uYZ嘉泰姆

VBATuYZ嘉泰姆

Converter Supply Voltage.                      Enable in Charge DoneuYZ嘉泰姆

9uYZ嘉泰姆

LBIuYZ嘉泰姆

Low Battery Indicator.uYZ嘉泰姆

10uYZ嘉泰姆

PSIuYZ嘉泰姆

Power Saving Input. Force VPSI exceed 1V enter PFM. Left VPSI below 0.4V enter PWM mode.uYZ嘉泰姆

11uYZ嘉泰姆

ENuYZ嘉泰姆

Device Enable Control Input. Force VEN exceed 1V enable the device. Left VEN below 0.4V touYZ嘉泰姆
shutdown.uYZ嘉泰姆

12uYZ嘉泰姆

LBOuYZ嘉泰姆

Low Battery Output.uYZ嘉泰姆

13uYZ嘉泰姆

GNDuYZ嘉泰姆

Signal Ground. Connect this pin to PGND.uYZ嘉泰姆

14uYZ嘉泰姆

FBuYZ嘉泰姆

Converter Feedback Input.uYZ嘉泰姆

Exposed PaduYZ嘉泰姆

PGNDuYZ嘉泰姆

Power Ground. Tie this pin to the ground island/plane through the lowest impedance connectionuYZ嘉泰姆
available.uYZ嘉泰姆

六.电路原理图uYZ嘉泰姆


blob.pnguYZ嘉泰姆

七,功能概述uYZ嘉泰姆


Main Control LoopuYZ嘉泰姆

The CXSU63139 is a constant frequency, synchronous rectifier, and current-mode switching regulator. uYZ嘉泰姆

In normal operation, the internal N-channel power MOSFET is turned on each cycle when the oscillatoruYZ嘉泰姆

 sets an internal RS latch and turned off when an internal comparator (ICMP) resets the latch. The peakuYZ嘉泰姆

 inductor current which ICMP resets the RS latch is controlled by the voltage on the COMP node, which uYZ嘉泰姆

is the output of the error amplifier (EAMP). An external resistive divider connected between VOUT and uYZ嘉泰姆

ground allows the EAMP to receive an output feedback voltage VFB at FB pin. When the load current uYZ嘉泰姆

increases, it causes a slightly decrease in VFB relative to the 0.5V reference, which in turn causes theuYZ嘉泰姆

 COMP volt- age to increase until the average inductor current matches the new load current.uYZ嘉泰姆
 Start-upuYZ嘉泰姆
A start-up oscillator circuit is integrated in the CXSU63139.When the device enables, the circuit pumpsuYZ嘉泰姆

 the output voltage high. Once the output voltage reaches 1.6V (typ),the main DC-DC circuitry turns onuYZ嘉泰姆

 and boosts the output voltage to the final regulation voltage. uYZ嘉泰姆
Automatic PFM/PWM mode SwitchuYZ嘉泰姆
The CXSU63139 is a fixed frequency PWM peak current modulation control step-up converter. At lightuYZ嘉泰姆

 loads, theCXSU63139 will automatically enter in pulse frequency modulation operation to reduce the uYZ嘉泰姆

dominant switching losses. In PFM operation, the inductor current may reach zero or reverse on eachuYZ嘉泰姆

 pulse. A zero current comparator turns off the P-channel synchronous MOSFET, forcing DCM(DiscontinuousuYZ嘉泰姆

 Current Mode) operation at light load.These controls get very low quiescent current, help to maintain uYZ嘉泰姆

high efficiency over the complete load range. uYZ嘉泰姆
Synchronous RectificationuYZ嘉泰姆
The internal synchronous rectifier eliminates the need for an external Schottky diode, thus reducing costuYZ嘉泰姆

 and board space. During the cycle off-time, the P-FET turns on and shunts the FET body diode. As a uYZ嘉泰姆

result, the syn-chronous rectifier significantly improves efficiency with-out the addition of an externaluYZ嘉泰姆

 component. Conversion efficiency can be as high as 92%.uYZ嘉泰姆
Load DisconnectuYZ嘉泰姆
Driving EN to ground places the CXSU63139 in shutdown mode. When in shutdown, the internal poweruYZ嘉泰姆

 MOSFET turns off, all internal circuitry shuts down and the quies-cent supply current reduces to 1μAuYZ嘉泰姆

 maximum.A special circuit is applied to disconnect the load from the input during shutdown the uYZ嘉泰姆

converter. In conventional syn-chronous rectifier circuits, the back-gate diode of the high-side P-FET uYZ嘉泰姆

is forward biased in shutdown and allows current flowing from the battery to the output. However,thisuYZ嘉泰姆

 device uses a special circuit, which takes the cath-ode of the back-gate diode of the high-side P-FETuYZ嘉泰姆

 and disconnects it from the source when the regulator is shutdown. The benefit of this feature for uYZ嘉泰姆

the system de-sign engineer is that the battery is not depleted during shutdown of the converter.  uYZ嘉泰姆

No additional componentsmust be added to the design to make sure that the bat-tery is disconnecteduYZ嘉泰姆

 from the output of the converter. uYZ嘉泰姆
Current-Limit ProtectionuYZ嘉泰姆
The CXSU63139 monitors the inductor current, flowing through the N-FET, and  limits the current uYZ嘉泰姆

peak at current-limit level to prevent loads and the CXSU63139 from dam-ages during overloaduYZ嘉泰姆

 conditions.uYZ嘉泰姆
Over-Temperature Protection (OTP)uYZ嘉泰姆
The over-temperature circuit limits the junction tempera-ture of the CXSU63139. When the junctionuYZ嘉泰姆

 temperature ex-ceeds 150oC, a thermal sensor turns off the both N-FETand P-FET, allowing the uYZ嘉泰姆

devices to cool. The thermal sensor allows the converters to start a soft-start process and regulateuYZ嘉泰姆

 the output voltage again after the junction temperature cools by 30oC. The OTP is designed with uYZ嘉泰姆

a 30oC hysteresis to lower the average Junction Tempera-ture (TJ) during continuous thermal overload conditions,increasing the lifetime of the device.uYZ嘉泰姆

八,相关产品                 更多同类产品......uYZ嘉泰姆


Switching Regulator > Boost ConverteruYZ嘉泰姆

 Part_No uYZ嘉泰姆

PackageuYZ嘉泰姆

Archi-tecture uYZ嘉泰姆

Input uYZ嘉泰姆

Voltage    uYZ嘉泰姆

Max Adj.uYZ嘉泰姆

Output uYZ嘉泰姆

Voltage uYZ嘉泰姆

Switch Current Limit (max) uYZ嘉泰姆

Fixed uYZ嘉泰姆

Output uYZ嘉泰姆

Voltage  uYZ嘉泰姆

Switching uYZ嘉泰姆

Frequency uYZ嘉泰姆

Internal Power   Switch uYZ嘉泰姆

Sync. Rectifier uYZ嘉泰姆

 

minuYZ嘉泰姆

maxuYZ嘉泰姆

minuYZ嘉泰姆

maxuYZ嘉泰姆

(A)uYZ嘉泰姆

(V)uYZ嘉泰姆

(kHz)uYZ嘉泰姆

 

CXSU63133uYZ嘉泰姆

SOT89uYZ嘉泰姆

VM uYZ嘉泰姆

0.9uYZ嘉泰姆

5.5uYZ嘉泰姆

2.5uYZ嘉泰姆

5.5uYZ嘉泰姆

0.5uYZ嘉泰姆

1.8|2.6|2.8|3uYZ嘉泰姆

|3.3|3.8|4.5|5uYZ嘉泰姆

-uYZ嘉泰姆

NouYZ嘉泰姆

YesuYZ嘉泰姆

CXSU63134uYZ嘉泰姆

MSOP8|TSSOP8uYZ嘉泰姆

|SOP8uYZ嘉泰姆

VMuYZ嘉泰姆

2.5uYZ嘉泰姆

5.5uYZ嘉泰姆

2.5uYZ嘉泰姆

-uYZ嘉泰姆

-uYZ嘉泰姆

-uYZ嘉泰姆

200 ~ 1000uYZ嘉泰姆

NouYZ嘉泰姆

NouYZ嘉泰姆

CXSU63135uYZ嘉泰姆

TSSOP8|SOP-8PuYZ嘉泰姆

VMuYZ嘉泰姆

1uYZ嘉泰姆

5.5uYZ嘉泰姆

2.5uYZ嘉泰姆

5uYZ嘉泰姆

1uYZ嘉泰姆

2.5|3.3uYZ嘉泰姆

300uYZ嘉泰姆

YesuYZ嘉泰姆

YesuYZ嘉泰姆

CXSU63136uYZ嘉泰姆

SOP8uYZ嘉泰姆

CMuYZ嘉泰姆

3uYZ嘉泰姆

40uYZ嘉泰姆

1.25uYZ嘉泰姆

40uYZ嘉泰姆

1.5uYZ嘉泰姆

-uYZ嘉泰姆

33 ~ 100uYZ嘉泰姆

YesuYZ嘉泰姆

NouYZ嘉泰姆

CXSU63137uYZ嘉泰姆

TQFN5x5-32uYZ嘉泰姆

CMuYZ嘉泰姆

2.5uYZ嘉泰姆

6.5uYZ嘉泰姆

2.5uYZ嘉泰姆

18uYZ嘉泰姆

3uYZ嘉泰姆

NouYZ嘉泰姆

1200uYZ嘉泰姆

YesuYZ嘉泰姆

NouYZ嘉泰姆

CXSU63138uYZ嘉泰姆

TSOT23-5uYZ嘉泰姆

TDFN2x2-6uYZ嘉泰姆

CMuYZ嘉泰姆

2.5uYZ嘉泰姆

6uYZ嘉泰姆

2.5uYZ嘉泰姆

20uYZ嘉泰姆

2uYZ嘉泰姆

-uYZ嘉泰姆

1500uYZ嘉泰姆

YesuYZ嘉泰姆

NouYZ嘉泰姆

CXSU63139uYZ嘉泰姆

TQFN4x4-6uYZ嘉泰姆

TDFN3x3-12uYZ嘉泰姆

CMuYZ嘉泰姆

1.8uYZ嘉泰姆

5.5uYZ嘉泰姆

2.7uYZ嘉泰姆

5.5uYZ嘉泰姆

5uYZ嘉泰姆

-uYZ嘉泰姆

1.2uYZ嘉泰姆

YesuYZ嘉泰姆

YesuYZ嘉泰姆

CXSU63140uYZ嘉泰姆

SOT23-5uYZ嘉泰姆

CMuYZ嘉泰姆

2.5uYZ嘉泰姆

6uYZ嘉泰姆

2.5uYZ嘉泰姆

32uYZ嘉泰姆

1uYZ嘉泰姆

-uYZ嘉泰姆

1000uYZ嘉泰姆

YesuYZ嘉泰姆

NouYZ嘉泰姆

CXSU63141uYZ嘉泰姆

TSOT-23-6 uYZ嘉泰姆

TDFN2x2-8uYZ嘉泰姆

CMuYZ嘉泰姆

1.2uYZ嘉泰姆

5.5uYZ嘉泰姆

1.8uYZ嘉泰姆

5.5uYZ嘉泰姆

1.2uYZ嘉泰姆

-uYZ嘉泰姆

1.2uYZ嘉泰姆

YesuYZ嘉泰姆

YesuYZ嘉泰姆

uYZ嘉泰姆

发表评论
    共有条评论
    用户名: 密码:
    验证码: 匿名发表

热门信息
  • 最新信息
    推荐信息
    相关文章
  • 外部输入参考电压升压型DC/DC控制器CXSU63151轻负载到
  • 脉冲宽度调制PWM降低了输出纹波CXSU6395E高效率峰值电
  • CXSD6225耐压高至42V输出电流1.5A的异步降压转换器12V
  • 【0.6A高压降压】CXSD6265 80V宽压DC-DC转换器|工业级
  • 【1A高压降压】CXSD6266 80V宽压DC-DC转换器|工业级电
  • 【80V高压降压】CXSD62557 DC-DC转换器|1A高效电源IC S
  • CXLC8993升压转换器两个电荷泵和用于TFT LCD的大电流
  • CXLC8992升压转换器正电荷泵和负电荷泵内置延时的逻辑
  • CXLC8988 CXLC8989高性能的升压调节器降压升压控制器
  • CXLC8984升压转换器两个电荷泵和一个用于TFT LCD的大
  • 推荐资讯
    CXSD62620AF 18V/2A  Sync. Step-Down Converter4.5V至18V工作输入基于I2架构的单片式降压开关稳压器通过两个集成的N沟道MOSFET提供2A的连续输出电流
    CXSD62620AF 18V/2A
    CXSD62619 28V/2A  Sync. Step-Down Converter电流模式单片降压转换器4.5V至28V的输入过两个集成的N沟道MOSFET提供2A的连续输出电流600kHz开关频率
    CXSD62619 28V/2A Sy
    CXSD62618TF 18V/3A  Sync. Step-Down Converter基于I2架构的单片式降压开关稳压器快速瞬态响应4.5V至18V的输入通过两个集成的N沟道MOSFET提供3A的连续输出电流
    CXSD62618TF 18V/3A
    CXSD62617TF 18V/2A  Sync. Step-Down Converter基于I2架构的单片式降压开关稳压器4.5V至18V工作输入2A输出电流600kHz开关频率内部软启动输入欠压锁定
    CXSD62617TF 18V/2A
    CXSD62622  45V/5A Asynchronous  Step-Down Converter电流模式单片降压开关稳压器4.5V至45V的输入集成了高端N沟道MOSFET5A的连续输出电流
    CXSD62622 45V/5A As
    CXSD62621HF  18V/3A  Sync. Step-Down Converter基于I2架构的单片式降压开关稳压器4.5V至18V工作输入通过两个集成的N沟道MOSFET提供3A的连续输出电流
    CXSD62621HF 18V/3A
    CXSD62623   60V/2A Asynchronous  Step-Down Converter电流模式单片降压开关稳压器4.5V至60V的输入集成的高端N沟道MOSFET提供2A的连续输出电流开关频率可调内部软启动
    CXSD62623 60V/2A A
    CXSD62624 6V/2A, Sync. Step-Down Converter 基于COT架构的单片式降压开关稳压器快速瞬态响应2.5V至6V的输入2A的输出电流2MHz开关频率
    CXSD62624 6V/2A, Syn
    CXSD62625  18V/5A  Sync. Step-Down Converter 4.5V至18V工作输入范围5A输出电流内部软启动电源正常指示器输出短路保护热保护
    CXSD62625 18V/5A S
    CXAC85250B/CXAC85250M 高精度恒压恒流驱动IC | 无辅助绕组设计 | 直接线电压供电 | 智能LED驱动
    CXAC85250B/CXAC85250
    CXSD62626 18V/6A  Sync. Step-Down Converter 基于I2架构的单片式降压开关稳压器,可实现快速瞬态响应 通过两个集成的N沟道MOSFET提供6A的连续输出电流 4.5V至18V工作输入范围
    CXSD62626 18V/6A Sy
    CXAC85251 高精度恒压恒流驱动IC | 直接线电压供电 | 无辅助绕组 | 智能LED照明解决方案
    CXAC85251 高精度恒压