CXSU63234升压转换器结合了高性能、电流模式和频率可选择的脉冲宽度调制（PWM）电路和内置的N通道MOSFET，以提供高效的调节器。用户可以选择CXSU63234的频率，以在600kHz或1.2MHz下工作。高开关频率允许容易滤波和更快的环路性能。外部补偿引脚提供了用户在确定环路动态的灵活性，允许使用小，低ESR陶瓷输出电容器。电流模式结构提供对脉冲负载的快速瞬态响应。内部N沟道MOSFET可以产生高达22V的输出电压，用户编程的外部电容软启动决定了输入电流的斜坡率
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产品概述 返回TOP
The CXSU63234 boost converter incorporate high-performance, current-mode, and frequency selectable pulse width modulation (PWM) circuitry with a built-in N-channel MOSFET to provide a highly efficient regulator. The CXSU63234’s frequency can be selected by user to operate at either 600kHz or 1.2MHz. High switching frequency allows easily filtering and faster loop performance. An external compensation pin provides the user flexibility in determining loop dynamics, allowing the use of small, low ESR ceramic output capacitors. The current-mode architecture provides fast transient response to pulsed loads. The internal N-channel MOSFET can produce output voltage as high as 22V. User programmed soft-start with an external capacitor determines the input current ramp rate. The CXSU63234 is available in a 10-pin TDFN3X3 package.
产品特点 返回TOP
„ 90% Efficiency
„ Adjustable Output from VIN to 22V
„ 4A, 0.125Ω, 22V Power MOSFET
„ 2.5V to 5.5V Input Range
„ 600kHz/1.2MHz Switching Frequency
„ TDFN3X3-10 Package
应用范围 返回TOP
LCD Displays
„ Portable Applications
„ Hand-Held Devices
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Step Up Controller |
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Part NO. |
Vin(V) min. |
Vin(V) max. |
FSW (kHz) |
FB(V) |
TON min(ns) |
TOFF min(ns) |
Note |
Package |
|
4.5 |
27 |
35~1000 |
0.7 |
400 |
200 |
SHDN,SS,OCP, COMP,UVLO |
MSOP-10(FD) |
|
|
4.5 |
27 |
35~1000 |
0.7 |
400 |
200 |
SHDN,SS, OCP, COMP,UVLO |
MSOP-10(FD) |
|
|
2.5 |
13.5 |
10~1000 |
0.5 |
-- |
-- |
SS,SCP,UVLO, Dutymax=85% |
TSSOP-8/SOP-8 |
|
|
2.2 |
6 |
20~1000 |
0.5 |
-- |
-- |
SS,SCP,UVLO, Dutymax=85% |
SOP-8/MSOP-8/TSSOP-8 |
|
|
Part NO. |
Vin(V) min. |
Vin(V) max. |
VOUT (max)(V) |
FSW (kHz) |
FB>(V) |
ISW (A) |
Note |
Package |
|
2.5 |
5.5 |
5.075 |
1000 |
1.227 |
6.5 |
LX, LX,VBAT, ILM0,ILM1,GND, FB,OC,VOUT, VOUT, Synchronous Boost |
SOP-8(FD) |
|
|
2.5 |
5.5 |
22 |
600/1200 |
1.24 |
4 |
COMP,FB,EN, GND*2,LX*2,IN, FREQ,SS |
TDFN3X3-10 |
|
|
2.5 |
5.5 |
24 |
600/1200 |
1.24 |
2 |
COMP,FB,EN, GND,SW,VCC, FSL,SS |
MSOP-8 |
|
|
2.5 |
5.5 |
28 |
600/1200 |
1.24 |
4.6 |
COMP,FB,EN, GND*2,LX*2,IN, FREQ,SS |
TDFN3X3-10 |
|
|
2.5 |
6 |
28 |
1000 |
1.23 |
0.6 |
IN-,SCP,VCC,BR, OUT,GND,OSC, FB |
SOT-23-5 |
|
|
2.7 |
5.5 |
33 |
1000 |
1.25 |
0.85 |
LX,GND,FB,EN,IN |
SOT-23-5 |
|
|
2.7 |
5.5 |
30 |
1000 |
1.25 |
0.85 |
LX,GND,FB,EN,IN |
SOT-23-5 |
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