输出3A电流高效率的同步降压DC/DC转换器CXSD62327输入电压3V到5.5V内部同步低导通电阻功率

CXSD62327是一种高效率的同步降压DC/DC转换器。它的输入电压范围是3V到5.5V，提供可调的输出电压从0.8V到5V，同时输出高达3A的电流。内部同步低导通电阻功率开关提高了效率，消除了外部肖特基二极管的需要。开关频率由外部电阻设置

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 CXSD62327 is a high efficiency synchronous, step-down DC/DC converter. Its input voltage range is from 3V to 5.5V and provides an adjustable regulated output voltage from 0.8V to 5V while delivering up to 3A of output current.

The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is set by an external resistor. The 100% duty cycle provides low dropout operation extending battery life in portable systems. Current mode operation with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

The CXSD62327 is operated in forced continuous PWM mode which minimizes ripple voltage and reduces the noise and RF interference.

CXSD62327 is available in the Green TDFN-3×3-10L 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%
• Low R_DS(ON) Internal Switches: 120mΩ
• Programmable Frequency: 300kHz to 2MHz
• 3A Output Current
• Input Voltage Range: 3V to 5.5V
• 0.8V Reference Allows Low Output Voltages
• Less than 1μA Shutdown Current
• 100% Duty Cycle for Lowest Dropout
• Forced Continuous PWM Mode Operation
• No External Power MOSFETs and
    Schottky Diode Required
• Excellent Line Regulation and Load Transient
    Response
• -40℃ to +85℃ Operating Temperature Range
• Available in Green TDFN-3×3-10L Package

   应用范围 返回TOP

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Digital Book Readers
Digital 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)