CXSU63140

CXSU63140是一种固定开关频率(典型为1MHz)、电流模式、升压集成N沟道MOSFET的稳压器。该设备允许使用便携式设备用电感器和输出电容器。当前模式控制方案提供快速的瞬态响应和良好的输出电压精度欠压闭锁、限流、超温停堆-输出过载时的老化

2.5V至6V输入电压0.6ΩN沟道MOSFET内置软启动CXSU63140固定开关频率电流模式升压集成N沟道MOSFET的稳压器

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产品简介

目录sZ8嘉泰姆

1.产品概述                       2.产品特点sZ8嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 sZ8嘉泰姆
5.产品封装图                     6.电路原理图                   sZ8嘉泰姆
7.功能概述                        8.相关产品sZ8嘉泰姆

一,产品概述(General Description)  sZ8嘉泰姆


           The CXSU63140 is a fixed switching frequency (1MHz typical), current-mode, step-upsZ8嘉泰姆
regulator with an inte-grated N-channel MOSFET. The device allows the usage of smallsZ8嘉泰姆
inductors and output capacitors for portable devices. The current-mode control schemesZ8嘉泰姆
provides fast transient response and good output voltage accuracy.The CXSU63140 includessZ8嘉泰姆
under-voltage lockout, current-limit, and over-temperature shutdown preventing dam-sZ8嘉泰姆
age in the event of an output overloadsZ8嘉泰姆
二.产品特点(Features)sZ8嘉泰姆


1.)Wide 2.5V to 6V Input Voltage RangesZ8嘉泰姆
2.)Built-in 0.6 N-Channel MOSFETsZ8嘉泰姆
3.)Built-in Soft-StartsZ8嘉泰姆
4.)High Efficiency up to 90%sZ8嘉泰姆
5.)<1μA Quiescent Current During ShutdownsZ8嘉泰姆
6.)Current-Mode OperationsZ8嘉泰姆
    Stable with Ceramic Output CapacitorssZ8嘉泰姆
    Fast Transient ResponsesZ8嘉泰姆
7.)Current-Limit ProtectionsZ8嘉泰姆
8.)Over-Temperature Protection with HysteresissZ8嘉泰姆
9.)Available in a Tiny 5-Pin SOT-23 and TSOT-23PackagessZ8嘉泰姆
10.)Lead Free and Green Devices Available(RoHS Compliant)sZ8嘉泰姆
三,应用范围 (Applications)sZ8嘉泰姆


Cell Phone and Smart PhonesZ8嘉泰姆
PDA, PMP, MP3sZ8嘉泰姆
Digital CamerasZ8嘉泰姆
Boost RegulatorssZ8嘉泰姆
四.下载产品资料PDF文档 sZ8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sZ8嘉泰姆

 QQ截图20160419174301.jpgsZ8嘉泰姆

五,产品封装图 (Package)sZ8嘉泰姆


blob.pngsZ8嘉泰姆

PIN.sZ8嘉泰姆

FUNCTIONsZ8嘉泰姆

NOsZ8嘉泰姆

NAMEsZ8嘉泰姆

1sZ8嘉泰姆

LXsZ8嘉泰姆

Switch pin. Connect this pin to inductor/diode here.sZ8嘉泰姆

2sZ8嘉泰姆

GNDsZ8嘉泰姆

Power and signal ground pin.sZ8嘉泰姆

3sZ8嘉泰姆

FBsZ8嘉泰姆

Feedback Input. The device senses feedback voltage via FB and regulate the voltage at 1.23V.sZ8嘉泰姆
Connecting FB with a resistor-divider from the output that sets the output voltage in the range fromsZ8嘉泰姆
VIN to 30V.sZ8嘉泰姆

4sZ8嘉泰姆

ENsZ8嘉泰姆

Enable Control Input. Forcing this pin above 1.0V enables the device. Forcing this pin below 0.4V tosZ8嘉泰姆
shut it down. In shutdown, all functions are disabled to decrease the supply current below 1μA. DosZ8嘉泰姆
not left this pin floating.sZ8嘉泰姆

5sZ8嘉泰姆

VINsZ8嘉泰姆

Main Supply Pin. Must be closely decoupled to GND with a 2.2μF or greater ceramic capacitor.sZ8嘉泰姆

六.电路原理图sZ8嘉泰姆


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blob.pngsZ8嘉泰姆

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七,功能概述sZ8嘉泰姆


Main Control LoopsZ8嘉泰姆
The CXSU63140 is a constant frequency and current-mode switching regulator. In normal operation, sZ8嘉泰姆

the internal N-channel power MOSFET is turned on each cycle when the oscillator sets an internalsZ8嘉泰姆

 RS latch, and then turned off when an internal comparator (ICMP) resets the latch. The peak inductorsZ8嘉泰姆

 current at which ICMP resets the RS latch is controlled by the voltage on the COMP node which is thesZ8嘉泰姆

 output of the error amplifier (EAMP). An external resis-tive divider connected between VOUT and sZ8嘉泰姆

ground allows the EAMP to receive an output feedback voltage VFB at FB pin. When the load currentsZ8嘉泰姆

 increases, it causes a slightly to decrease in VFB associated with the 1.23V reference,which in turn, sZ8嘉泰姆

it causes the COMP voltage to increase until the average inductor current matches the new load current. sZ8嘉泰姆
VIN Under-Voltage Lockout (UVLO)sZ8嘉泰姆
The Under-Voltage Lockout (UVLO) circuit compares the input voltage at VIN with the UVLO threshold sZ8嘉泰姆

to ensure the input voltage is high enough for reliable operation.The 100mV (typ) hysteresis preventssZ8嘉泰姆

 supply transients from causing a restart. Once the input voltage exceeds the UVLO rising threshold,sZ8嘉泰姆

 startup begins. When the in-put voltage falls below the UVLO falling threshold, the controller turnssZ8嘉泰姆

 off the converter.sZ8嘉泰姆
Soft-StartsZ8嘉泰姆
The CXSU63140 has a built-in soft-start to control the output voltage rise during start-up. During sZ8嘉泰姆

soft-start, an internal ramp voltage, connected to the one of the positive inputs of the error sZ8嘉泰姆

amplifier, raises up to replace the reference voltage (1.23V typical) until the ramp voltage sZ8嘉泰姆

reaches the reference voltage.sZ8嘉泰姆
Current-Limit ProtectionsZ8嘉泰姆
The CXSU63140 monitors the inductor current, flows through the N-channel MOSFET, and sZ8嘉泰姆

limits the current peak at current-limit level to prevent loads and the CXSU63140 from sZ8嘉泰姆

damaging during overload or short-circuit conditions.sZ8嘉泰姆
Over-Temperature Protection (OTP)sZ8嘉泰姆
The over-temperature circuit limits the junction tempera-ture of the CXSU63140. When sZ8嘉泰姆

the junction temperature ex-ceeds 150 oC, a thermal sensor turns off the power MOSFETsZ8嘉泰姆

 allowing the devices to cool. The thermal sen-sor allows the converters to start a soft-startsZ8嘉泰姆

 process and regulates the output voltage again after the junction tem-perature cools by 40oC. sZ8嘉泰姆

The OTP is designed with a 40oC hysteresis to lower the average Junction TemperaturesZ8嘉泰姆
(TJ) during continuous thermal overload conditions in-creasing the lifetime of the device.sZ8嘉泰姆
Enable/ShutdownsZ8嘉泰姆
Driving EN to the ground places the CXSU63140 in shut- down mode. When in shutdown, sZ8嘉泰姆

the internal power MOSFET turns off, all internal circuitry shuts down, andthe quiescent sZ8嘉泰姆

supply current reduces to 1μA maximum.sZ8嘉泰姆
八,相关产品                    更多同类产品......sZ8嘉泰姆


Switching Regulator > Boost ConvertersZ8嘉泰姆

 Part_No sZ8嘉泰姆

PackagesZ8嘉泰姆

Archi-tecture sZ8嘉泰姆

Input sZ8嘉泰姆

Voltage    sZ8嘉泰姆

Max Adj.sZ8嘉泰姆

Output sZ8嘉泰姆

Voltage sZ8嘉泰姆

Switch Current Limit (max) sZ8嘉泰姆

Fixed sZ8嘉泰姆

Output sZ8嘉泰姆

Voltage  sZ8嘉泰姆

Switching sZ8嘉泰姆

Frequency sZ8嘉泰姆

Internal Power   Switch sZ8嘉泰姆

Sync. Rectifier sZ8嘉泰姆

 

minsZ8嘉泰姆

maxsZ8嘉泰姆

minsZ8嘉泰姆

maxsZ8嘉泰姆

(A)sZ8嘉泰姆

(V)sZ8嘉泰姆

(kHz)sZ8嘉泰姆

 

CXSU63133sZ8嘉泰姆

SOT89sZ8嘉泰姆

VM sZ8嘉泰姆

0.9sZ8嘉泰姆

5.5sZ8嘉泰姆

2.5sZ8嘉泰姆

5.5sZ8嘉泰姆

0.5sZ8嘉泰姆

1.8|2.6|2.8|3sZ8嘉泰姆

|3.3|3.8|4.5|5sZ8嘉泰姆

-sZ8嘉泰姆

NosZ8嘉泰姆

YessZ8嘉泰姆

CXSU63134sZ8嘉泰姆

MSOP8|TSSOP8sZ8嘉泰姆

|SOP8sZ8嘉泰姆

VMsZ8嘉泰姆

2.5sZ8嘉泰姆

5.5sZ8嘉泰姆

2.5sZ8嘉泰姆

-sZ8嘉泰姆

-sZ8嘉泰姆

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200 ~ 1000sZ8嘉泰姆

NosZ8嘉泰姆

NosZ8嘉泰姆

CXSU63135sZ8嘉泰姆

TSSOP8|SOP-8PsZ8嘉泰姆

VMsZ8嘉泰姆

1sZ8嘉泰姆

5.5sZ8嘉泰姆

2.5sZ8嘉泰姆

5sZ8嘉泰姆

1sZ8嘉泰姆

2.5|3.3sZ8嘉泰姆

300sZ8嘉泰姆

YessZ8嘉泰姆

YessZ8嘉泰姆

CXSU63136sZ8嘉泰姆

SOP8sZ8嘉泰姆

CMsZ8嘉泰姆

3sZ8嘉泰姆

40sZ8嘉泰姆

1.25sZ8嘉泰姆

40sZ8嘉泰姆

1.5sZ8嘉泰姆

-sZ8嘉泰姆

33 ~ 100sZ8嘉泰姆

YessZ8嘉泰姆

NosZ8嘉泰姆

CXSU63137sZ8嘉泰姆

TQFN5x5-32sZ8嘉泰姆

CMsZ8嘉泰姆

2.5sZ8嘉泰姆

6.5sZ8嘉泰姆

2.5sZ8嘉泰姆

18sZ8嘉泰姆

3sZ8嘉泰姆

NosZ8嘉泰姆

1200sZ8嘉泰姆

YessZ8嘉泰姆

NosZ8嘉泰姆

CXSU63138sZ8嘉泰姆

TSOT23-5sZ8嘉泰姆

TDFN2x2-6sZ8嘉泰姆

CMsZ8嘉泰姆

2.5sZ8嘉泰姆

6sZ8嘉泰姆

2.5sZ8嘉泰姆

20sZ8嘉泰姆

2sZ8嘉泰姆

-sZ8嘉泰姆

1500sZ8嘉泰姆

YessZ8嘉泰姆

NosZ8嘉泰姆

CXSU63139sZ8嘉泰姆

TQFN4x4-6sZ8嘉泰姆

TDFN3x3-12sZ8嘉泰姆

CMsZ8嘉泰姆

1.8sZ8嘉泰姆

5.5sZ8嘉泰姆

2.7sZ8嘉泰姆

5.5sZ8嘉泰姆

5sZ8嘉泰姆

-sZ8嘉泰姆

1.2sZ8嘉泰姆

YessZ8嘉泰姆

YessZ8嘉泰姆

CXSU63140sZ8嘉泰姆

SOT23-5sZ8嘉泰姆

CMsZ8嘉泰姆

2.5sZ8嘉泰姆

6sZ8嘉泰姆

2.5sZ8嘉泰姆

32sZ8嘉泰姆

1sZ8嘉泰姆

-sZ8嘉泰姆

1000sZ8嘉泰姆

YessZ8嘉泰姆

NosZ8嘉泰姆

CXSU63141sZ8嘉泰姆

TSOT-23-6 sZ8嘉泰姆

TDFN2x2-8sZ8嘉泰姆

CMsZ8嘉泰姆

1.2sZ8嘉泰姆

5.5sZ8嘉泰姆

1.8sZ8嘉泰姆

5.5sZ8嘉泰姆

1.2sZ8嘉泰姆

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1.2sZ8嘉泰姆

YessZ8嘉泰姆

YessZ8嘉泰姆

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