1.6MHz恒定开关频率恒频电流模式同步降压开关稳压器600毫安输出电流CXSD62329输入电压2.5V至5.5V 100%占空比

CXSD62329是1.6MHz、恒频、电流模式、同步、降压开关稳压器。它能从2.5V到5.5V的输入电压输出600mA的负载电流，输出电压低至0.6V。高开关频率使电感和电容的尺寸最小化。集成的功率mosfet和内部补偿使CXSD62329易于使用，并适合在一个紧凑的空间内的整体解决方案。CXSD62329还可以在100%工作循环下运行，以实现低功耗操作，延长便携式系统的电池寿命。

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 CXSD62329 is a 1.6MHz, constant frequency, current mode, synchronous, step-down switching regulator. It can deliver 600mA load current from 2.5V to 5.5V input voltage, and output voltage can be as low as 0.6V.

High switching frequency minimizes the sizes of inductor and capacitor. Integrated power MOSFETs and internal compensation make the CXSD62329 simple to use and fit the total solution in a compact space.

The CXSD62329 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. The synchronous architecture eliminates the external Schottky diode, and achieves over 90% of the power conversion efficiency. Low output ripple voltage at light load, 30μA quiescent current and less than 1μA of shutdown current make CXSD62329 the ideal power supply solution for portable applications.

CXSD62329 is available in both adjustable and fixed (1.2V, 1.8V, 3.3V) output voltage versions. It is in the Green TSOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.

   产品特点 返回TOP

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 • High Efficiency: Up to 95%
• 30μA Low Quiescent Current at Light Load
• 600mA Output Current
• Input Voltage Range: 2.5V to 5.5V
• 1.2V, 1.8V & 3.3V Fixed & Adjustable Output Voltages
• 0.6V Reference Voltage
• 1.6MHz Constant Switching Frequency
• Less than 1μA Shutdown Current
• 100% Duty Cycle for Lowest Dropout
• No External Power MOSFETs and Schottky Diode Required
• Excellent Line Regulation & Load Transient Response
• -40℃ to +85℃ Operating Temperature Range
• Available in Green TSOT-23-5 Package

   应用范围 返回TOP

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GPS
MP3 Players
Cellular, Smart Phones
Digital Book Readers
Digital Still Cameras
Portable Instruments
Wireless and DSL Modems
Battery Powered Equipments
Microprocessor, DSP Power Supplies

   技术规格书（产品PDF) 返回TOP 

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     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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

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同步整流降压转换器
Product	CH	Enable	VCC (Min)V	VCC (Max)V	VOUT(V)	IOUT(mA)	Frequency (kHz)	Iq (mA)	SHDN  Iq(μA)	Package
CXSD62327	1	L	3	5.5	adj	3000	adj(300 to  2000)	0.41	2	TDFN-3x3-10L
CXSD62328	1	H	2.5	5.5	3.3/adj	2000	1400	0.3	2	TDFN-3x3-10L
CXSD62329	1	H	2.5	5.5	1.2/1.8/3.3/adj	800	1600	0.03	1	TSOT-23-5
CXSD62330	1	H	2.5	5.5	1.2/1.8/3.3/adj	800	1600	0.03	1	TSOT-23-5 TDFN-2x2-6L
CXSD62331	1	H	2.5	5.5	1.2/1.8/3.3/adj	2000	1400	0.055	2	TDFN-3x3-10L
CXSD62332	1	H	2.7	5.5	adj	1200	1600	0.03	1	TDFN-3x3-10L
CXSD62333	1	H	2.7	5.5	adj	1200	1600	0.03	1	TDFN-2x3-8L
CXSD62334	1	H	2.5	5.5	adj	600	6000	0.022	1	TDFN-2x2-6L
CXSD62335	1	H	2.5	5.5	0.6/0.8/1.0/1.1/1.15 /1.2/1.5/1.6/1.8/2.5/ 2.8/3.0/3.3	600	6000	0.022	1	TDFN-2x2-6L   WLCSP-1.21x0.81-6B
非同步降压转换器
Product	CH	Enable	VCC (Min)V	VCC MAX(V)	VOUT(V)	IOUT(mA)	Frequency (kHz)	Iq (mA)	SHDN  Iq(μA)	Package
CXSD62336	1	H	4.5	28.5	adj	3000	385	0.8	18	SOIC-8(EP)
CXSD62337	1	H	4.5	28.5	adj	3000	1400	0.8	18	SOIC-8(EP)
CXSD62338	1	H	4.5	38	adj	2000	385	0.8	18	SOIC-8(EP)
CXSD62339	1	H	4.5	38	adj	2000	1400	0.8	18	SOIC-8(EP)
CXSD62340	1	H	4.5	18	adj	3000	1400	0.8	18	SOIC-8(EP)