快速1.0兆赫电流模式的PWM控制CXSU63237升压转换器为恒定电流的高偏压中小型LCD面板设计

CXSU63237升压转换器是专为具有恒定电流的高偏压中小型LCD面板设计的，可提供PDA和其他手持设备。它的特点是快速1.0兆赫电流模式的PWM控制与内置的0.3ΩN-MOS，允许更小的电容和电感。故障状态保护采用逐周期电流限制，以检测最大电感电流和热保护

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXSU63237 step-up converter is designed for small or medium size LCD panel of high bias voltage with a constant current to provide PDAs, and other hand-held devices. It features a fast 1.0 MHz current-mode PWM control with a built-in 0.3ΩN-MOS that allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current and thermal protection. Also included soft-start eliminates inrush current during start-up. The CXSU63237 is available in 5-pin SOT-23-5 packages

   产品特点 返回TOP

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Operating Voltage:2.5V to 6.0V. 

High Operating Frequency: 1MHz 

High Output Voltage: Up to 28V 

Shutdown Current<1μA 

Digital Dimming Control. 

Built-in Cycle-by Cycle Current-Limiting. 

Built-in Soft-Start Function. 

±1.5% 1.23V Reference Voltage 

Tiny SOT-23-5 Package

   应用范围 返回TOP

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STN/OLED Bias 

Personal Digital Assistants(PDAs) 

DSC

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产品封装图 返回TOP

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电路原理图 返回TOP

 

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Step Up Controller
Part   NO.	Vin(V) min.	Vin(V) max.	FSW (kHz)	FB(V)	TON min(ns)	TOFF min(ns)	Note	Package
CXSU63229	4.5	27	35~1000	0.7	400	200	SHDN,SS,OCP,   COMP,UVLO	MSOP-10(FD)
CXSU63230/A	4.5	27	35~1000	0.7	400	200	SHDN,SS, OCP, COMP,UVLO	MSOP-10(FD)
CXSU63231	2.5	13.5	10~1000	0.5	--	--	SS,SCP,UVLO, Dutymax=85%	TSSOP-8/SOP-8
CXSU63232	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
CXSU63233	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)
CXSU63234	2.5	5.5	22	600/1200	1.24	4	COMP,FB,EN, GND*2,LX*2,IN, FREQ,SS	TDFN3X3-10
CXSU63235	2.5	5.5	24	600/1200	1.24	2	COMP,FB,EN, GND,SW,VCC, FSL,SS	MSOP-8
CXSU63236	2.5	5.5	28	600/1200	1.24	4.6	COMP,FB,EN, GND*2,LX*2,IN, FREQ,SS	TDFN3X3-10
CXSU63237	2.5	6	28	1000	1.23	0.6	IN-,SCP,VCC,BR, OUT,GND,OSC, FB	SOT-23-5
CXSU63238	2.7	5.5	33	1000	1.25	0.85	LX,GND,FB,EN,IN	SOT-23-5
CXSU63239	2.7	5.5	30	1000	1.25	0.85	LX,GND,FB,EN,IN	SOT-23-5