CXSD62257在故障预防与处理方面,具有周期性的峰值电流限制和过温关断等保护机制。芯片在关断模式下的静态电流可低至3μA以下。可编程的软启动有效减小了输入浪涌电流和启动时的输出过冲。在轻负载时,芯片可自动工作在脉冲跳跃模式来提高效率
 
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7.相关产品
产品概述 返回TOP
产品特点 返回TOP
• 高达3A的输出电流
• 轻负载下自动工作在脉冲跳跃模式
• 内部集成142/103mΩ的DMOS开关管
• 输入电压范围:4.5V至30V
• 输出电压可调:0.92V至20V
• 效率高达94%
• 关断电流<3μA
• 340KHz恒定开关频率
• 可编程的软启动
• 过温保护和过流保护
• 输入过压/欠压保护
• 220n的最小Ton时间
• SOP-8(EP)封装
• 符合RoHS规范及Pb-Free
3A Output Current
Automatic Pulse Skipping Mode at Light Load
Integrated 142mΩ/103mΩ DMOS Switches
4.5V to 30V Input Operating Range
Output Adjustable from 0.92V to 20V
Up to 94% Efficiency
3μA Shutdown Current
Fixed 340KHz Frequency
Programmable Soft-Start
Thermal Shutdown and Overcurrent Protection
Input Supply Undervoltage Lockout
220ns Minimum On Time
Available in SOP-8 (EP) Package
RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free
应用范围 返回TOP
• 分布式电源系统
• 网络系统
• PC设备
• 可携式电子产品
Distributed Power Systems
Networking Systems
PC Monitors
Portable Electronics
技术规格书(产品PDF) 返回TOP
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
a
电路原理图 返回TOP

| DC/DC开关稳压器 > 降压转换器/控制器 | |||||||||
| Part Number | remark | Iout (mA) | Vin (V) | Vout (V) | IQ (μA) | FB (V) | Freq. (KHz) | Peak Efficency (%) | Package | 
| 6A, 30V, Synchronous Step-Down Converter with Programmable Frequency | 6000 | 2.7~30 | 0.8~20 | 1000 | 0.8 | 100~1000 | >95 | TQFN-23L | |
| 2A, 30V, 340KHz Synchronous Step-Down Converter | 2000 | 4.5~30 | 0.92~20 | 1000 | 0.92 | 340 | >94 | SOP-8 | |
| 3A, 30V, 340KHz Synchronous Step-Down Converter | 3000 | 4.5~30 | 0.92~20 | 1000 | 0.92 | 340 | >94 | SOP-8(EP) | |
| CC/CV Mode Synchronous Step-Down Converter | 4000 | 8~36 | 0.6~12 | 1000 | 0.6 | 80~800 | >95 | SOP-8(EP) | |
| Dual-Channel CC/CV Mode Synchronous Step-Down Controller | 5000 | 8~36 | 0.6~12 | 1000 | 0.6 | 150 | >95 | MSOP-10 | |
| CC/CV Mode Synchronous Step-Down Converter | 4000 | 4.5~36 | 0.6~20 | 1000 | 0.6 | 80~800 | >95 | SOP-8(EP) | |
| CC/CV Mode Synchronous Step-Down Converter | 4000 | 4.5~30 | 0.6~12 | 1000 | 0.6 | 80~800 | >95 | SOP-8(EP) | |
| Dual-Channel CC/CV Mode Synchronous Step-Down Converter | 5000 | 8~36 | 0.6~12 | 1000 | 0.6 | 80~800 | 95 | SOP-8(EP) | |
| 5A, CC/CV Mode Step-Down Converter | 5000 | 8~36 | 1.18~12 | 500 | 1.18 | 120 | >95 | SOP-8(EP) | |
| CC/CV Mode Step-Down Converter | 3000 | 8~36 | 1.18~12 | 500 | 1.18 | 120 | >95 | SOP-8 | |
| 3A,40V,200KHz Step-Down Converter | 3000 | 4.75~40 | 0.92~15 | 550 | 0.92 | 200 | >95 | SOP-8(EP) | |
| 1.5MHz, 800mA Synchronous Step-Down Converter with Soft Start | 800 | 2.5 ~ 5.5 | 0.6~Vin | 270 | 0.6 | 1500 | > 96 | TSOT23-5,SOT23-5 | |
| 3A, Synchronous Step-Down Converter | 3000 | 2.7~5.5 | 0.6~5 | 500 | 0.6 | 1000 | >96 | TDFN-10,SOP-8(EP) | |
| 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator | 1000 | 2.7~5.5 | 0.6~3.3 | 30 | 0.6 | 2250 | >94 | TDFN-6 | |
| 1.5MHz,1A Synchronous Step-Down Converter with Soft Start | 1000 | 2.5 ~ 5.5 | 0.6~5 | 270 | 0.6 | 1500 | > 96 | TDFN-6,SOT23-5,TSOT23-5 | |
| 5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible Interface | 5000 | 2.7~5.5 | 0.6~1.4 | 52 | - | 3000 | - | WCSP-20 | |
| 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator | 1000 | 2.7 ~ 5.5 | 0.6~Vin | 30 | 0.6 | 2250 | > 95 | TDFN-6,TSOT23-5 | |
| Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter | 1000 /1000 | 2.5 ~ 5.5 | 0.6~5 | 270 | 0.6 | 1500 | > 96 | TDFN-12 | |
| Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator | 1000/1000 | 2.7 ~ 5.5 | 0.6~Vin | 45 | 0.6 | 2250 | > 95 | TDFN-10 | |
| Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator | 1000/1000 | 2.7 ~ 5.5 | 0.6~Vin | 30 | 0.6 | 2250 | > 95 | TDFN-12 | |
| 1.2A,30V,1.2MHz Step-Down Converter | 1200 | 4.5 ~ 30 | 0.8~15 | 550 | 0.8 | 1200 | > 92 | SOT23-6 | |
| 1.5A, 2.25MHz Synchronous Step-Down DC/DC Regulator | 1500 | 2.7 ~ 5.5 | 0.6~Vin | 30 | 0.6 | 2250 | > 95 | TDFN-6 | |
| 1.5A,40V,200KHz Step-Down Converter | 1500 | 4.75 ~ 40 | 0.92~15 | 550 | 0.92 | 200 | > 95 | SOP-8 | |
| 2A, Synchronous Step-Down Converter | 2000 | 2.7 ~ 5.5 | 0.8~5 | 500 | 0.8 | 1000 | > 96 | SOP-8 | |
| 2A, 30V, 340KHz SynchronousStep-Down Converter | 2000 | 4.5 ~ 30 | 0.923~20 | 450 | 0.923 | 340 | >93 | SOP-8 | |
| 2A, 30V, 340KHz Synchronous Step-Down Converter | 2000 | 4.5~30 | 0.923~20 | 450 | 0.923 | 340 | >95 | SOP-8 | |
| 2A, 30V, 340KHz Synchronous Step-Down Converter | 2000 | 4.5~30 | 0.923~20 | 450 | 0.923 | 340 | >95 | SOP-8 | |
| 3A,30V,500KHz Step-Down Converter | 3000 | 4. 5 ~ 30 | 0.8~12 | 450 | 0.8 | 500 | > 95 | SOP-8(EP) | |
| 3A, 28V, 500kHz Synchronous Step-Down Converter | 3000 | 4.5 ~ 28 | 0.8~24 | 1100 | 0.8 | 500 | >95 | SOP-8(EP) | |
| 3A, 28V, 500kHz Synchronous Step-Down Converter | 3000 | 4.5 ~ 28 | 0.8~24 | 1100 | 0.8 | 500 | >95 | SOP-8(EP) | |
| 3A, 28V, 1MHz Synchronous Step-Down Converter | 3000 | 4.5 ~ 28 | 0.8~24 | 1100 | 0.8 | 1000 | >95 | SOP-8(EP),TDFN-8(EP) | |
| 3A,40V,200KHz Step-Down Converterr | 3000 | 4.75 ~ 40 | 0.92~15 | 550 | 0.92 | 200 | >95 | SOP-8(EP) | |
| 3A, 28V, 1MHz Synchronous Step-Down Converter | 3000 | 4.5 ~ 28 | 0.8~24 | 1100 | 0.8 | 1000 | >95 | SOP-8(EP) | |
| 3A, 30V, 340KHz Synchronous Step-Down Converter | 3000 | 4.5 ~ 30 | 0.925~12 | 450 | 0.925 | 340 | >95 | SOP-8(EP) | |
| 3A, 30V, 340KHz Synchronous Step-Down Converter | 3000 | 4.5~30 | 0.923~20 | 450 | 0.925 | 340 | >95 | SOP-8(EP) | |
| 3.2A, Synchronous Step-Down Converter | 3200 | 2.7 ~ 5.5 | 0.8~5 | 500 | 0.8 | 1000 | > 96 | SOP-8(EP) | |
| 4A, 21V, 500KHz Synchronous Step-Down Converter | 4000 | 4.5 ~ 21 | 0.8~15 | 900 | 0.808 | 500 | >95 | SOP-8(EP) | |
| 5A,30V,500KHz Step-Down Converter | 5000 | 5.5 ~ 30 | 1.222~26 | 550 | 1.222 | 500 | > 95 | SOP-8(EP) | |
| 6A Synchronous Step-Down Converter | 6000 | 3.3~5.5 | 0.6~2 | 1000 | 0.6~2 | 1200 | >93 | TQFN-20 | |
| 4A, Synchronous Step-Down Converter | 4000 | 2.7~5.5 | 0.6-~5 | 500 | 0.6 | 1000 | 96 | TDFN-10 | |
| 2A, 24V, 340KHz Synchronous Step-Down Converter | 2000 | 4.5~24 | 0.92~20 | 1000 | 0.92 | 340 | 94 | SOP-8,TSOT23-8 | |
| 3A, 24V, 340KHz Synchronous Step-Down Converter | 3000 | 4.5~24 | 0.92~20 | 1000 | 0.92 | 340 | 94 | SOP-8 | |