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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 >紧凑型PFM模式和升级型低静态电流的DC-DC转换器CXSU63133效率高达92%同步整流器降低了成本
紧凑型PFM模式和升级型低静态电流的DC-DC转换器CXSU63133效率高达92%同步整流器降低了成本
1

CXSU63133一种紧凑型、PFM模式和升级型具有低静态电流的DC-DC转换器。国际米兰-
nal同步整流器降低了成本和PCB空间不需要外部肖特基二极管。内部开关的低导通电阻提高了
效率高达92%。启动电压有保证低于1V

紧凑型PFM模式和升级型低静态电流的DC-DC转换器CXSU63133效率高达92%同步整流器降低了成本
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产品简介

目录L6q嘉泰姆

1.产品概述                       2.产品特点L6q嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 L6q嘉泰姆
5.产品封装图                     6.电路原理图                   L6q嘉泰姆
7.功能概述                        8.相关产品L6q嘉泰姆

一,产品概述(General Description)         L6q嘉泰姆


The CXSU63133 is a compact, PFM mode, and step-upL6q嘉泰姆

DC-DC converter with low quiescent current. The inter-L6q嘉泰姆
nal synchronous rectifier reduces cost and PCB spaceL6q嘉泰姆
by eliminating the need for an external Schottky diode.L6q嘉泰姆
Low on-resistance of the internal switches improves theL6q嘉泰姆
efficiency up to 92%. The start-up voltage is guaranteedL6q嘉泰姆
below 1V. After start-up, the device can operate with inputL6q嘉泰姆
voltage down to 0.7V. The CXSU63133 is suitable for por-L6q嘉泰姆
table battery-powered applications. Consuming only 11μAL6q嘉泰姆
quiescent current and an optimized control scheme al-L6q嘉泰姆
lows the device to operate at very high efficiency over theL6q嘉泰姆
entire load current range.L6q嘉泰姆

二.产品特点(Features)L6q嘉泰姆


1.)0.9V Typical Start-up Input VoltageL6q嘉泰姆
2.)11μA Typical No Load Quiescent CurrentL6q嘉泰姆
3.)PFM OperationL6q嘉泰姆
4.)High Efficiency up to 92%L6q嘉泰姆
5.)Fixed 1.8V, 2.6V, 2.8V, 3V, 3.3V, 3.8V, 4.5V or 5VL6q嘉泰姆
6.)Output VoltageL6q嘉泰姆
7.)600mA Internal Switch CurrentL6q嘉泰姆
8.)Internal Synchronous RectifierL6q嘉泰姆
9.)SOT-89 PackageL6q嘉泰姆
10.)Lead Free and Green Devices AvailableL6q嘉泰姆
(RoHS Compliant)L6q嘉泰姆
三,应用范围 (Applications)L6q嘉泰姆


ToyL6q嘉泰姆

Wireless MouseL6q嘉泰姆
Portable InstrumentL6q嘉泰姆
四.下载产品资料PDF文档 L6q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L6q嘉泰姆

 QQ截图20160419174301.jpgL6q嘉泰姆

五,产品封装图 (Package)L6q嘉泰姆
L6q嘉泰姆
六.电路原理图L6q嘉泰姆


blob.pngL6q嘉泰姆
七,功能概述L6q嘉泰姆


Inductor SelectionL6q嘉泰姆
The inductor value determines the inductor ripple currentL6q嘉泰姆
and affects the load transient response. It is recom-L6q嘉泰姆
mended to select the boost inductor in order to keep theL6q嘉泰姆
maximum peak inductor current below the current limitL6q嘉泰姆
threshold of the power switch. For example, the currentL6q嘉泰姆
limit threshold of the CXSU63133’s switch is 600mA. ForL6q嘉泰姆
choosing an inductor which has peak current passed,L6q嘉泰姆
firstly, it is necessary to consider the output load (IOUT),L6q嘉泰姆
input (VIN), and output voltage (VOUT). Secondly, the de-L6q嘉泰姆
sired current ripple in the inductor also needed to beL6q嘉泰姆
taken into account. The current was calculated in “OutputL6q嘉泰姆
Capacitor Selection”. Since the output ripple is the prod-L6q嘉泰姆
uct of the peak inductor current and the output capacitorL6q嘉泰姆
ESR, the larger inductor value reduces the inductor cur-L6q嘉泰姆
rent ripple and output voltage ripple but typically offers aL6q嘉泰姆
larger physical size.L6q嘉泰姆

PINL6q嘉泰姆

FUNCTIONL6q嘉泰姆

NO.L6q嘉泰姆

NAMEL6q嘉泰姆

 

1L6q嘉泰姆

LXL6q嘉泰姆

Junction of N-FET and P-FET Drains. Connect the inductor here and minimize the trace area forL6q嘉泰姆
lowest EMI.L6q嘉泰姆

2L6q嘉泰姆

VOUTL6q嘉泰姆

Converter output and control circuitry bias supply pin.L6q嘉泰姆

3L6q嘉泰姆

GNDL6q嘉泰姆

Ground.L6q嘉泰姆

Control SchemeL6q嘉泰姆
The converter monitors the output voltage. When the in-L6q嘉泰姆
ternal feedback voltage falls below the reference voltage,L6q嘉泰姆
the main switch turns on and the inductor current rampsL6q嘉泰姆
up. The main switch turns off when the current reachesL6q嘉泰姆
the peak current limit of typical 600mA. The second crite-L6q嘉泰姆
rion that turns off the switch is the maximum on-time ofL6q嘉泰姆
4μs (typical). As the main switch is turned off, the syn-L6q嘉泰姆
chronous switch is turned on and delivers the current toL6q嘉泰姆
the output. The main switch remains off for a minimum ofL6q嘉泰姆
900ns (typical), or until the internal feedback voltage dropsL6q嘉泰姆
below the reference voltage. By the control scheme withL6q嘉泰姆
low quiescent current of 11μA (typical), the converter getsL6q嘉泰姆
high efficiency over a wide load range. L6q嘉泰姆
Start-UpL6q嘉泰姆
A startup oscillator circuit is integrated in the CXSU63133.L6q嘉泰姆
When the power is applied to the device, the circuit pumpsL6q嘉泰姆
the output voltage high. Once the output voltage reachesL6q嘉泰姆
1.4V (typ), the main DC-DC circuitry turns on and boostsL6q嘉泰姆
the output voltage to the final regulation point.L6q嘉泰姆
Synchronous RectificationL6q嘉泰姆
The internal synchronous rectifier eliminates the needL6q嘉泰姆
for an external Schottky diode, thus, reducing cost andL6q嘉泰姆
board space. During the cycle off-time, the P-channelL6q嘉泰姆
MOSFET turns on and shunts the MOSFET body diode.L6q嘉泰姆
As a result, the synchronous rectifier significantly improvesL6q嘉泰姆
efficiency without the addition of an external component.L6q嘉泰姆
Conversion efficiency can be as high as 92%. L6q嘉泰姆
Over-Temperature ProtectionL6q嘉泰姆
The over-temperature circuit limits the junction tempera-L6q嘉泰姆
ture of the CXSU63133. When the junction temperature ex-L6q嘉泰姆
ceeds 150°C, a thermal sensor turns off the powerL6q嘉泰姆
MOSFETs, allowing the devices to cool. The thermal sen-L6q嘉泰姆
sor allows the converter to start a start-up process andL6q嘉泰姆
regulate the output voltage again after the junction tem-L6q嘉泰姆
perature cools by 40°C. The OTP is designed with a 40°CL6q嘉泰姆
hysteresis to lower the average TJ during continuous ther-L6q嘉泰姆
mal overload conditions, increasing lifetime of the device.L6q嘉泰姆

八,相关产品                  更多同类产品......L6q嘉泰姆

Switching Regulator > Boost ConverterL6q嘉泰姆

 Part_No L6q嘉泰姆

PackageL6q嘉泰姆

Archi-tecture L6q嘉泰姆

Input L6q嘉泰姆

Voltage    L6q嘉泰姆

Max Adj.L6q嘉泰姆

Output L6q嘉泰姆

Voltage L6q嘉泰姆

Switch Current Limit (max) L6q嘉泰姆

Fixed L6q嘉泰姆

Output L6q嘉泰姆

Voltage  L6q嘉泰姆

Switching L6q嘉泰姆

Frequency L6q嘉泰姆

Internal Power   Switch L6q嘉泰姆

Sync. Rectifier L6q嘉泰姆

 

minL6q嘉泰姆

maxL6q嘉泰姆

minL6q嘉泰姆

maxL6q嘉泰姆

(A)L6q嘉泰姆

(V)L6q嘉泰姆

(kHz)L6q嘉泰姆

 

CXSU63133L6q嘉泰姆

SOT89L6q嘉泰姆

VM L6q嘉泰姆

0.9L6q嘉泰姆

5.5L6q嘉泰姆

2.5L6q嘉泰姆

5.5L6q嘉泰姆

0.5L6q嘉泰姆

1.8|2.6|2.8|3L6q嘉泰姆

|3.3|3.8|4.5|5L6q嘉泰姆

-L6q嘉泰姆

NoL6q嘉泰姆

YesL6q嘉泰姆

CXSU63134L6q嘉泰姆

MSOP8|TSSOP8L6q嘉泰姆

|SOP8L6q嘉泰姆

VML6q嘉泰姆

2.5L6q嘉泰姆

5.5L6q嘉泰姆

2.5L6q嘉泰姆

-L6q嘉泰姆

-L6q嘉泰姆

-L6q嘉泰姆

200 ~ 1000L6q嘉泰姆

NoL6q嘉泰姆

NoL6q嘉泰姆

CXSU63135L6q嘉泰姆

TSSOP8|SOP-8PL6q嘉泰姆

VML6q嘉泰姆

1L6q嘉泰姆

5.5L6q嘉泰姆

2.5L6q嘉泰姆

5L6q嘉泰姆

1L6q嘉泰姆

2.5|3.3L6q嘉泰姆

300L6q嘉泰姆

YesL6q嘉泰姆

YesL6q嘉泰姆

CXSU63136L6q嘉泰姆

SOP8L6q嘉泰姆

CML6q嘉泰姆

3L6q嘉泰姆

40L6q嘉泰姆

1.25L6q嘉泰姆

40L6q嘉泰姆

1.5L6q嘉泰姆

-L6q嘉泰姆

33 ~ 100L6q嘉泰姆

YesL6q嘉泰姆

NoL6q嘉泰姆

CXSU63137L6q嘉泰姆

TQFN5x5-32L6q嘉泰姆

CML6q嘉泰姆

2.5L6q嘉泰姆

6.5L6q嘉泰姆

2.5L6q嘉泰姆

18L6q嘉泰姆

3L6q嘉泰姆

NoL6q嘉泰姆

1200L6q嘉泰姆

YesL6q嘉泰姆

NoL6q嘉泰姆

CXSU63138L6q嘉泰姆

TSOT23-5L6q嘉泰姆

TDFN2x2-6L6q嘉泰姆

CML6q嘉泰姆

2.5L6q嘉泰姆

6L6q嘉泰姆

2.5L6q嘉泰姆

20L6q嘉泰姆

2L6q嘉泰姆

-L6q嘉泰姆

1500L6q嘉泰姆

YesL6q嘉泰姆

NoL6q嘉泰姆

CXSU63139L6q嘉泰姆

TQFN4x4-6L6q嘉泰姆

TDFN3x3-12L6q嘉泰姆

CML6q嘉泰姆

1.8L6q嘉泰姆

5.5L6q嘉泰姆

2.7L6q嘉泰姆

5.5L6q嘉泰姆

5L6q嘉泰姆

-L6q嘉泰姆

1.2L6q嘉泰姆

YesL6q嘉泰姆

YesL6q嘉泰姆

CXSU63140L6q嘉泰姆

SOT23-5L6q嘉泰姆

CML6q嘉泰姆

2.5L6q嘉泰姆

6L6q嘉泰姆

2.5L6q嘉泰姆

32L6q嘉泰姆

1L6q嘉泰姆

-L6q嘉泰姆

1000L6q嘉泰姆

YesL6q嘉泰姆

NoL6q嘉泰姆

CXSU63141L6q嘉泰姆

TSOT-23-6 L6q嘉泰姆

TDFN2x2-8L6q嘉泰姆

CML6q嘉泰姆

1.2L6q嘉泰姆

5.5L6q嘉泰姆

1.8L6q嘉泰姆

5.5L6q嘉泰姆

1.2L6q嘉泰姆

-L6q嘉泰姆

1.2L6q嘉泰姆

YesL6q嘉泰姆

YesL6q嘉泰姆

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