CXSU63138

CXSU63138是一个固定的开关频率(典型为1.5MHz),电流模式,
带集成N沟道MOSFET的升压调节器。设备允许使用
用于便携式设备的小电感和输出电容器。当前模式控制
该方案具有快速的暂态响应和良好的输出电压精度。

2.7V至6V输入电压CXSU63138固定的开关频率1.5MHz电流模式N沟道MOSFET的升压调节器内置软启动

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产品简介

目录Kut嘉泰姆

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

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


          The CXSU63138 is a fixed switching frequency (1.5MHz typical), current-mode,Kut嘉泰姆
step-up regulator with an inte-grated N-channel MOSFET. The device allows the usageKut嘉泰姆
of small inductors and output capacitors for portable devices. The current-mode control Kut嘉泰姆

scheme provides fast transient response and good output voltage accuracy. The CXSU63138 includes under-voltage lockout, current-limit, and over-temperature shutdown preventing Kut嘉泰姆

dam-age in the event of an output overloadKut嘉泰姆
二.产品特点(Features)Kut嘉泰姆


1.)Wide 2.7V to 6V Input Voltage RangeKut嘉泰姆
2.)Built-in 0.2 N-Channel MOSFETKut嘉泰姆
3.)Built-in Soft-StartKut嘉泰姆
4.)High Efficiency up to 90%Kut嘉泰姆
5.)<1μA Quiescent Current During ShutdownKut嘉泰姆
6.)Current-Mode OperationKut嘉泰姆
    Stable with Ceramic Output CapacitorsKut嘉泰姆
    Fast Transient ResponseKut嘉泰姆
7.)Current-Limit ProtectionKut嘉泰姆
8.)Over-Temperature Protection with HysteresisKut嘉泰姆
9.)Available in a TSOT-23-5A and TDFN2x2-6 Pack-ageKut嘉泰姆
10.)Lead Free and Green Devices Available(RoHS Compliant)Kut嘉泰姆
三,应用范围 (Applications)Kut嘉泰姆


Cell Phone and Smart PhoneKut嘉泰姆
PDA, PMP, MP3Kut嘉泰姆
Digital CameraKut嘉泰姆
Boost RegulatorsKut嘉泰姆
四.下载产品资料PDF文档 Kut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Kut嘉泰姆

 QQ截图20160419174301.jpgKut嘉泰姆

五,产品封装图 (Package)Kut嘉泰姆


blob.pngKut嘉泰姆

六.电路原理图Kut嘉泰姆


blob.pngKut嘉泰姆
blob.pngKut嘉泰姆

blob.pngKut嘉泰姆

七,功能概述Kut嘉泰姆


Main Control LoopKut嘉泰姆
The CXSU63138 is a constant frequency and current-mode switching regulator. In normal operation, the internal Kut嘉泰姆

N-channel power MOSFET is turned on each cycle when the oscillator sets an internal RS latch,Kut嘉泰姆

 and then turned off when an internal comparator (ICMP) resets the latch. The peak inductor Kut嘉泰姆

current at which ICMP resets the RS latch is controlled by the voltage on the COMP node whichKut嘉泰姆

is the output of the error amplifier (EAMP). An external resis-tive divider connected between Kut嘉泰姆

VOUT and ground allows the EAMP to receive an output feedback voltage VFB at FB pin. WhenKut嘉泰姆

the load current increases, it causes a slightly to decrease in VFB associated with the 1.23VKut嘉泰姆

reference,which in turn, it causes the COMP voltage to increase until the average inductor Kut嘉泰姆

current matches the new load current. Kut嘉泰姆

VIN Under-Voltage Lockout (UVLO)Kut嘉泰姆
The Under-Voltage Lockout (UVLO) circuit compares the input voltage at VIN with the UVLOKut嘉泰姆

 threshold to ensure the input voltage is high enough for reliable operation.The 100mV (typ) Kut嘉泰姆

hysteresis prevents supply transients from causing a restart. Once the input voltage exceeds Kut嘉泰姆

the UVLO rising threshold, startup begins. When the in-put voltage falls below the UVLO fallingKut嘉泰姆

 threshold, the controller turns off the converter.Kut嘉泰姆
Soft-StartKut嘉泰姆
The CXSU63138 has a built-in soft-start to control the output voltage rise during start-up. During soft-start, anKut嘉泰姆

 internal ramp voltage, connected to the one of the positive inputs of the error amplifier, raises up to replace the Kut嘉泰姆

reference voltage (1.23V typical) until the ramp voltage reaches the reference voltage.Kut嘉泰姆
Current-Limit ProtectionKut嘉泰姆
The CXSU63138 monitors the inductor current, flows through the N-channel MOSFET, and limitsKut嘉泰姆

 the current peak at current-limit level to prevent loads and the CXSU63138 from damaging during overload or Kut嘉泰姆

short-circuit conditions.Kut嘉泰姆

Over-Temperature Protection (OTP)Kut嘉泰姆
The over-temperature circuit limits the junction tempera-ture of the CXSU63138. When the Kut嘉泰姆

junction temperature  ex-ceeds 150 oC, a thermal sensor turns off the power MOSFET allowingKut嘉泰姆

 the devices to cool. The thermal sen-sor allows the converters to start a soft-start process and Kut嘉泰姆

regulates the output voltage again after the junction tem-perature cools by 40oC. The OTP is designed Kut嘉泰姆

with a 40oC hysteresis to lower the average Junction Temperature (TJ) during continuous thermal overloadKut嘉泰姆

 conditions in-creasing the lifetime of the device. Kut嘉泰姆

Enable/ShutdownKut嘉泰姆
Driving EN to the ground places the CXSU63138 in shut-down mode. When in shutdown, the internal powerKut嘉泰姆
MOSFET turns off, all internal circuitry shuts down, and the quiescent supply current reduces to 1μA maximum.Kut嘉泰姆
八,相关产品              更多同类产品......Kut嘉泰姆


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 Part_No Kut嘉泰姆

PackageKut嘉泰姆

Archi-tecture Kut嘉泰姆

Input Kut嘉泰姆

Voltage    Kut嘉泰姆

Max Adj.Kut嘉泰姆

Output Kut嘉泰姆

Voltage Kut嘉泰姆

Switch Current Limit (max) Kut嘉泰姆

Fixed Kut嘉泰姆

Output Kut嘉泰姆

Voltage  Kut嘉泰姆

Switching Kut嘉泰姆

Frequency Kut嘉泰姆

Internal Power   Switch Kut嘉泰姆

Sync. Rectifier Kut嘉泰姆

 

minKut嘉泰姆

maxKut嘉泰姆

minKut嘉泰姆

maxKut嘉泰姆

(A)Kut嘉泰姆

(V)Kut嘉泰姆

(kHz)Kut嘉泰姆

 

CXSU63133Kut嘉泰姆

SOT89Kut嘉泰姆

VM Kut嘉泰姆

0.9Kut嘉泰姆

5.5Kut嘉泰姆

2.5Kut嘉泰姆

5.5Kut嘉泰姆

0.5Kut嘉泰姆

1.8|2.6|2.8|3Kut嘉泰姆

|3.3|3.8|4.5|5Kut嘉泰姆

-Kut嘉泰姆

NoKut嘉泰姆

YesKut嘉泰姆

CXSU63134Kut嘉泰姆

MSOP8|TSSOP8Kut嘉泰姆

|SOP8Kut嘉泰姆

VMKut嘉泰姆

2.5Kut嘉泰姆

5.5Kut嘉泰姆

2.5Kut嘉泰姆

-Kut嘉泰姆

-Kut嘉泰姆

-Kut嘉泰姆

200 ~ 1000Kut嘉泰姆

NoKut嘉泰姆

NoKut嘉泰姆

CXSU63135Kut嘉泰姆

TSSOP8|SOP-8PKut嘉泰姆

VMKut嘉泰姆

1Kut嘉泰姆

5.5Kut嘉泰姆

2.5Kut嘉泰姆

5Kut嘉泰姆

1Kut嘉泰姆

2.5|3.3Kut嘉泰姆

300Kut嘉泰姆

YesKut嘉泰姆

YesKut嘉泰姆

CXSU63136Kut嘉泰姆

SOP8Kut嘉泰姆

CMKut嘉泰姆

3Kut嘉泰姆

40Kut嘉泰姆

1.25Kut嘉泰姆

40Kut嘉泰姆

1.5Kut嘉泰姆

-Kut嘉泰姆

33 ~ 100Kut嘉泰姆

YesKut嘉泰姆

NoKut嘉泰姆

CXSU63137Kut嘉泰姆

TQFN5x5-32Kut嘉泰姆

CMKut嘉泰姆

2.5Kut嘉泰姆

6.5Kut嘉泰姆

2.5Kut嘉泰姆

18Kut嘉泰姆

3Kut嘉泰姆

NoKut嘉泰姆

1200Kut嘉泰姆

YesKut嘉泰姆

NoKut嘉泰姆

CXSU63138Kut嘉泰姆

TSOT23-5Kut嘉泰姆

TDFN2x2-6Kut嘉泰姆

CMKut嘉泰姆

2.5Kut嘉泰姆

6Kut嘉泰姆

2.5Kut嘉泰姆

20Kut嘉泰姆

2Kut嘉泰姆

-Kut嘉泰姆

1500Kut嘉泰姆

YesKut嘉泰姆

NoKut嘉泰姆

CXSU63139Kut嘉泰姆

TQFN4x4-6Kut嘉泰姆

TDFN3x3-12Kut嘉泰姆

CMKut嘉泰姆

1.8Kut嘉泰姆

5.5Kut嘉泰姆

2.7Kut嘉泰姆

5.5Kut嘉泰姆

5Kut嘉泰姆

-Kut嘉泰姆

1.2Kut嘉泰姆

YesKut嘉泰姆

YesKut嘉泰姆

CXSU63140Kut嘉泰姆

SOT23-5Kut嘉泰姆

CMKut嘉泰姆

2.5Kut嘉泰姆

6Kut嘉泰姆

2.5Kut嘉泰姆

32Kut嘉泰姆

1Kut嘉泰姆

-Kut嘉泰姆

1000Kut嘉泰姆

YesKut嘉泰姆

NoKut嘉泰姆

CXSU63141Kut嘉泰姆

TSOT-23-6 Kut嘉泰姆

TDFN2x2-8Kut嘉泰姆

CMKut嘉泰姆

1.2Kut嘉泰姆

5.5Kut嘉泰姆

1.8Kut嘉泰姆

5.5Kut嘉泰姆

1.2Kut嘉泰姆

-Kut嘉泰姆

1.2Kut嘉泰姆

YesKut嘉泰姆

YesKut嘉泰姆

Kut嘉泰姆

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