CXSU63238压转换器包含一个0.7Ω的内部开关。该集成电路以恒定频率1MHz工作，允许使用微型、低成本和低高度的电感和电容器。该集成电路在2.7伏至5.5伏的电源电压下工作，可在输出端将电源电压提高至30伏。使用软启动功能消除启动时的高涌入电流。恒定频率电流模式的PWM结构导致低，可预测的输出噪声
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产品概述 返回TOP
The CXSU63238 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 5.5V supply voltage and can boost supply voltage up to 30V at the output. High inrush current at start-up is eliminated using the soft-start function. Constant frequency current mode PWM architecture results in low, predictable output noise. The CXSU63238 includes cycle-by-cycle 850mA current limiting to maximum inductor current and over-temperature protection circuit. The CXSU63238 is suitable for small or medium size LCD panel of high bias voltage with a constant current to provide PDAs, and other portable devices. The CXSU63238 is available in SOT-23-5 package.
产品特点 返回TOP
„ Operating Voltage：2.7V ~ 5.5V
„ High Operating Frequency：1MHz
„ Shutdown Current：＜1μA
„ High Output Voltage：Up to 30V
„ Soft Start Function
„ Cycle by Cycle Current Limiting
„ SOT-23-5 Package
应用范围 返回TOP
„ STN/OLED BIAS
„ Personal Digital Assistants
„ DSC
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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下一篇▶:输入2.7伏至5.5伏输出电压40V CXSU63239恒定频率1MHz软启动功能消除启动时的高涌入电流
