0.9V至4V宽输入1.2兆赫固定频率电流模式高效率的同步升压调节器1.8A内部开关CXSU63248 N-MOS作为主开关

CXSU63248是一款1.2兆赫固定频率、电流模式、高效率的同步升压调节器，可将0.9伏的输入电压转换为4伏的输出电压。它采用极低的Rdson N-MOS作为主开关，P-MOS作为同步开关，不需要外加肖特基二极管，提高了系统效率。它可以在关机操作期间断开输出。CXSU63248适用于通常由单电池或双电池镍镉（NICd）、米克尔金属氢化物（NiMH）或碱性电池供电的系统。

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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         CXSU63248 is a 1.2MHz fixed frequency, Current mode, high efficiency synchronous boost regulator that converts down to 0.9V input into up to 4V output voltage. It adopts very low Rdson N-MOS for the main switch and P-MOS for the synchronous switch, so no external Schottky didode is required, and the system efficiency is improved. It can disconnect the output during the shutdown operation. The CXSU63248 intended for systems that are typically operated from a single or dual-cell nickel-cadmium(NICd), mickel-metal hydride (NiMH), or alkaline battery.

   产品特点 返回TOP

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0.9V To 4V Wide Input Range

4V Max Output Voltage

1.8A Internal Switch

Up To 95% Efficiency

< 1ua Shut Down Current

1.2mhz Switching Frequency

Minimum On Time: 80ns Typical

Minimum Off Time: 60ns Typical

Output Disconnect At Shutdown

Low R_DS(ON) (Main Switch/Synchronous Switch) At 3.3V Output: 90/200mΩ

Compact SOT23-6

   应用范围 返回TOP

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LiIon or LiPolymer Powered Cell Phones, DSCs, PMP, GPS.

Alkaline Battery Powered Electronic Equipment.

Wireless Mouse.

   技术规格书（产品PDF) 返回TOP 

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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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Single Output Step Up Regulator(Integrated Switch)
Part Number	Vin (min) (V)	Vin (max) (V)	UVLO (V)	Ilim(A)	Fsw (MHz)	Vout,max(V)	Feedback Voltage   (V)	Feedback Voltage   accuracy	Input Quiescent   Current(uA)	Package
CXSU63245	0.7	5	0.75	0.4		5.25	0.5	±3%	0.5	SOT363
CXSU63245L	0.7	5	0.75	0.2		5.25	0.5	±3%	0.5	SOT363
CXSU63246	0.7	5	0.75	0.35		3.3	3.3	±3%	0.5	SOT235
CXSU63246A	0.7	5	0.75	0.35		3	3	±3%	0.5	SOT235
CXSU63247	0.7	5	0.75	0.35		5.25	1	±3%	0.5	SOT363
CXSU63247A	0.7	5	0.75	0.35		5.25	5	±3%	0.5	SOT363
CXSU63248	0.9	4	0.9	1.8	1.2	4	1.2	±3%	65	SOT236
CXSU63249	1.8	5.25	1.78	3.2	0.5	5.5	1.2	±1.5%	10	QFN2x210
CXSU63250	1.8	5.25	1.78	5	0.5	5.5	1.2	±1.5%	10	QFN2X210
CXSU63250A	1.8	5.25	1.78	5	0.5	5.5	1.2	±1.5%	10	QFN2X210
CXSU63251	1.8	5.25	1.78	6	0.5	5.5	1.2	±1.5%	10	QFN2X210
CXSU63251A	1.8	5.25	1.78	6	0.5	5.5	1.2	±1.5%	10	QFN2X210
CXSU63251B	1.8	5.25	1.78	6	0.5	5.5	1.2	±1.5%	10	QFN2x210
CXSU63252	2.5	5.5		3	1	5.5	1.2	±1.5%	8	TSOT236
CXSU63253	2	5.5	2	6	0.5	5.5	1.2	±1.5%	10	QFN2X210
CXSU63254	2.3	5.25	2.3	6	0.5	5.5	1.2	±1.5%	2	QFN 2x38
CXSU63255	3	25	2.3	0.6	1	25	0.6	±2%	100	SOT236
CXSU63256	3	8	1.8	2	1	16	0.6	±2%	100	SOT236
CXSU63257	3	25	2.7	2	1	25	0.6	±2%	100	SOT236
CXSU63258	3	33	2.1	2	1	33	0.6	±2%	100	SOT236
CXSU63259	3	30	2.85	15	adj.	30	1	±1.5%	220	QFN4x418
CXSU63260	3.5	30	3	2	0.85	30	1	±2%	150	SOT236
CXSU63261	2	6	1.9	2.5	1	6	0.6	±2%	200	SOT236
CXSU63262	2.5	5.5	2.4	2.5	1	6	0.6	±2%	200	DFN3x312
CXSU63263	2	6	1.9	4	1	6	0.6	±2%	100	DFN3x310
CXSU63264	8.6	15.9	8.3	4.5	0.5	16	1.25	±1.5%	120	DFN3x310
CXSU63265	3	9	2.9	6	1	13	1	±2%	600	QFN3x316
CXSU63266	3	5.5	3	9	adj.	36	1.25	±2%	380	DFN3X310
CXSU63267	3	16	2.85	15	adj.	18	1	±1.5%	220	QFN4x418
CXSU63267	3	16	2.85	15	adj.	16	1	±1.5%	230	QFN4x418
CXSU63268	3	33	2.7	4	1	33	0.6	±2%	100	QFN3x310