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首页 > 产品中心 > 电源管理 > DC升压型转换器 > DC升压转换 >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
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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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8L2嘉泰姆

1.产品概述                       2.产品特点8L2嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 8L2嘉泰姆
5.产品封装图                     6.电路原理图                   8L2嘉泰姆
7.功能概述                        8.相关产品8L2嘉泰姆

一,产品概述(General Description)  8L2嘉泰姆


           The CXSU63140 is a fixed switching frequency (1MHz typical), current-mode, step-up8L2嘉泰姆
regulator with an inte-grated N-channel MOSFET. The device allows the usage of small8L2嘉泰姆
inductors and output capacitors for portable devices. The current-mode control scheme8L2嘉泰姆
provides fast transient response and good output voltage accuracy.The CXSU63140 includes8L2嘉泰姆
under-voltage lockout, current-limit, and over-temperature shutdown preventing dam-8L2嘉泰姆
age in the event of an output overload8L2嘉泰姆
二.产品特点(Features)8L2嘉泰姆


1.)Wide 2.5V to 6V Input Voltage Range8L2嘉泰姆
2.)Built-in 0.6 N-Channel MOSFET8L2嘉泰姆
3.)Built-in Soft-Start8L2嘉泰姆
4.)High Efficiency up to 90%8L2嘉泰姆
5.)<1μA Quiescent Current During Shutdown8L2嘉泰姆
6.)Current-Mode Operation8L2嘉泰姆
    Stable with Ceramic Output Capacitors8L2嘉泰姆
    Fast Transient Response8L2嘉泰姆
7.)Current-Limit Protection8L2嘉泰姆
8.)Over-Temperature Protection with Hysteresis8L2嘉泰姆
9.)Available in a Tiny 5-Pin SOT-23 and TSOT-23Packages8L2嘉泰姆
10.)Lead Free and Green Devices Available(RoHS Compliant)8L2嘉泰姆
三,应用范围 (Applications)8L2嘉泰姆


Cell Phone and Smart Phone8L2嘉泰姆
PDA, PMP, MP38L2嘉泰姆
Digital Camera8L2嘉泰姆
Boost Regulators8L2嘉泰姆
四.下载产品资料PDF文档 8L2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8L2嘉泰姆

 QQ截图20160419174301.jpg8L2嘉泰姆

五,产品封装图 (Package)8L2嘉泰姆


blob.png8L2嘉泰姆

PIN.8L2嘉泰姆

FUNCTION8L2嘉泰姆

NO8L2嘉泰姆

NAME8L2嘉泰姆

18L2嘉泰姆

LX8L2嘉泰姆

Switch pin. Connect this pin to inductor/diode here.8L2嘉泰姆

28L2嘉泰姆

GND8L2嘉泰姆

Power and signal ground pin.8L2嘉泰姆

38L2嘉泰姆

FB8L2嘉泰姆

Feedback Input. The device senses feedback voltage via FB and regulate the voltage at 1.23V.8L2嘉泰姆
Connecting FB with a resistor-divider from the output that sets the output voltage in the range from8L2嘉泰姆
VIN to 30V.8L2嘉泰姆

48L2嘉泰姆

EN8L2嘉泰姆

Enable Control Input. Forcing this pin above 1.0V enables the device. Forcing this pin below 0.4V to8L2嘉泰姆
shut it down. In shutdown, all functions are disabled to decrease the supply current below 1μA. Do8L2嘉泰姆
not left this pin floating.8L2嘉泰姆

58L2嘉泰姆

VIN8L2嘉泰姆

Main Supply Pin. Must be closely decoupled to GND with a 2.2μF or greater ceramic capacitor.8L2嘉泰姆

六.电路原理图8L2嘉泰姆


blob.png8L2嘉泰姆
blob.png8L2嘉泰姆

 8L2嘉泰姆

七,功能概述8L2嘉泰姆


Main Control Loop8L2嘉泰姆
The CXSU63140 is a constant frequency and current-mode switching regulator. In normal operation, 8L2嘉泰姆

the internal N-channel power MOSFET is turned on each cycle when the oscillator sets an internal8L2嘉泰姆

 RS latch, and then turned off when an internal comparator (ICMP) resets the latch. The peak inductor8L2嘉泰姆

 current at which ICMP resets the RS latch is controlled by the voltage on the COMP node which is the8L2嘉泰姆

 output of the error amplifier (EAMP). An external resis-tive divider connected between VOUT and 8L2嘉泰姆

ground allows the EAMP to receive an output feedback voltage VFB at FB pin. When the load current8L2嘉泰姆

 increases, it causes a slightly to decrease in VFB associated with the 1.23V reference,which in turn, 8L2嘉泰姆

it causes the COMP voltage to increase until the average inductor current matches the new load current. 8L2嘉泰姆
VIN Under-Voltage Lockout (UVLO)8L2嘉泰姆
The Under-Voltage Lockout (UVLO) circuit compares the input voltage at VIN with the UVLO threshold 8L2嘉泰姆

to ensure the input voltage is high enough for reliable operation.The 100mV (typ) hysteresis prevents8L2嘉泰姆

 supply transients from causing a restart. Once the input voltage exceeds the UVLO rising threshold,8L2嘉泰姆

 startup begins. When the in-put voltage falls below the UVLO falling threshold, the controller turns8L2嘉泰姆

 off the converter.8L2嘉泰姆
Soft-Start8L2嘉泰姆
The CXSU63140 has a built-in soft-start to control the output voltage rise during start-up. During 8L2嘉泰姆

soft-start, an internal ramp voltage, connected to the one of the positive inputs of the error 8L2嘉泰姆

amplifier, raises up to replace the reference voltage (1.23V typical) until the ramp voltage 8L2嘉泰姆

reaches the reference voltage.8L2嘉泰姆
Current-Limit Protection8L2嘉泰姆
The CXSU63140 monitors the inductor current, flows through the N-channel MOSFET, and 8L2嘉泰姆

limits the current peak at current-limit level to prevent loads and the CXSU63140 from 8L2嘉泰姆

damaging during overload or short-circuit conditions.8L2嘉泰姆
Over-Temperature Protection (OTP)8L2嘉泰姆
The over-temperature circuit limits the junction tempera-ture of the CXSU63140. When 8L2嘉泰姆

the junction temperature ex-ceeds 150 oC, a thermal sensor turns off the power MOSFET8L2嘉泰姆

 allowing the devices to cool. The thermal sen-sor allows the converters to start a soft-start8L2嘉泰姆

 process and regulates the output voltage again after the junction tem-perature cools by 40oC. 8L2嘉泰姆

The OTP is designed with a 40oC hysteresis to lower the average Junction Temperature8L2嘉泰姆
(TJ) during continuous thermal overload conditions in-creasing the lifetime of the device.8L2嘉泰姆
Enable/Shutdown8L2嘉泰姆
Driving EN to the ground places the CXSU63140 in shut- down mode. When in shutdown, 8L2嘉泰姆

the internal power MOSFET turns off, all internal circuitry shuts down, andthe quiescent 8L2嘉泰姆

supply current reduces to 1μA maximum.8L2嘉泰姆
八,相关产品                    更多同类产品......8L2嘉泰姆


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Input 8L2嘉泰姆

Voltage    8L2嘉泰姆

Max Adj.8L2嘉泰姆

Output 8L2嘉泰姆

Voltage 8L2嘉泰姆

Switch Current Limit (max) 8L2嘉泰姆

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Voltage  8L2嘉泰姆

Switching 8L2嘉泰姆

Frequency 8L2嘉泰姆

Internal Power   Switch 8L2嘉泰姆

Sync. Rectifier 8L2嘉泰姆

 

min8L2嘉泰姆

max8L2嘉泰姆

min8L2嘉泰姆

max8L2嘉泰姆

(A)8L2嘉泰姆

(V)8L2嘉泰姆

(kHz)8L2嘉泰姆

 

CXSU631338L2嘉泰姆

SOT898L2嘉泰姆

VM 8L2嘉泰姆

0.98L2嘉泰姆

5.58L2嘉泰姆

2.58L2嘉泰姆

5.58L2嘉泰姆

0.58L2嘉泰姆

1.8|2.6|2.8|38L2嘉泰姆

|3.3|3.8|4.5|58L2嘉泰姆

-8L2嘉泰姆

No8L2嘉泰姆

Yes8L2嘉泰姆

CXSU631348L2嘉泰姆

MSOP8|TSSOP88L2嘉泰姆

|SOP88L2嘉泰姆

VM8L2嘉泰姆

2.58L2嘉泰姆

5.58L2嘉泰姆

2.58L2嘉泰姆

-8L2嘉泰姆

-8L2嘉泰姆

-8L2嘉泰姆

200 ~ 10008L2嘉泰姆

No8L2嘉泰姆

No8L2嘉泰姆

CXSU631358L2嘉泰姆

TSSOP8|SOP-8P8L2嘉泰姆

VM8L2嘉泰姆

18L2嘉泰姆

5.58L2嘉泰姆

2.58L2嘉泰姆

58L2嘉泰姆

18L2嘉泰姆

2.5|3.38L2嘉泰姆

3008L2嘉泰姆

Yes8L2嘉泰姆

Yes8L2嘉泰姆

CXSU631368L2嘉泰姆

SOP88L2嘉泰姆

CM8L2嘉泰姆

38L2嘉泰姆

408L2嘉泰姆

1.258L2嘉泰姆

408L2嘉泰姆

1.58L2嘉泰姆

-8L2嘉泰姆

33 ~ 1008L2嘉泰姆

Yes8L2嘉泰姆

No8L2嘉泰姆

CXSU631378L2嘉泰姆

TQFN5x5-328L2嘉泰姆

CM8L2嘉泰姆

2.58L2嘉泰姆

6.58L2嘉泰姆

2.58L2嘉泰姆

188L2嘉泰姆

38L2嘉泰姆

No8L2嘉泰姆

12008L2嘉泰姆

Yes8L2嘉泰姆

No8L2嘉泰姆

CXSU631388L2嘉泰姆

TSOT23-58L2嘉泰姆

TDFN2x2-68L2嘉泰姆

CM8L2嘉泰姆

2.58L2嘉泰姆

68L2嘉泰姆

2.58L2嘉泰姆

208L2嘉泰姆

28L2嘉泰姆

-8L2嘉泰姆

15008L2嘉泰姆

Yes8L2嘉泰姆

No8L2嘉泰姆

CXSU631398L2嘉泰姆

TQFN4x4-68L2嘉泰姆

TDFN3x3-128L2嘉泰姆

CM8L2嘉泰姆

1.88L2嘉泰姆

5.58L2嘉泰姆

2.78L2嘉泰姆

5.58L2嘉泰姆

58L2嘉泰姆

-8L2嘉泰姆

1.28L2嘉泰姆

Yes8L2嘉泰姆

Yes8L2嘉泰姆

CXSU631408L2嘉泰姆

SOT23-58L2嘉泰姆

CM8L2嘉泰姆

2.58L2嘉泰姆

68L2嘉泰姆

2.58L2嘉泰姆

328L2嘉泰姆

18L2嘉泰姆

-8L2嘉泰姆

10008L2嘉泰姆

Yes8L2嘉泰姆

No8L2嘉泰姆

CXSU631418L2嘉泰姆

TSOT-23-6 8L2嘉泰姆

TDFN2x2-88L2嘉泰姆

CM8L2嘉泰姆

1.28L2嘉泰姆

5.58L2嘉泰姆

1.88L2嘉泰姆

5.58L2嘉泰姆

1.28L2嘉泰姆

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Yes8L2嘉泰姆

Yes8L2嘉泰姆