The CXSD62255 is a synchronous, step-down constant on-time buck regulator capable of driving 6A continuous load current. The CXSD62255 can operate with an input range 2.7V to 30V and the output can be externally set down to 0.8V. The CXSD62255 provides excellent transient response with constant on-time control method while maintaining a nearly constant frequency. The switching frequency can be externally programmed from 100KHz to 1MHz. Fault condition protection includes VIN under-voltage lockout, cycle-by-cycle current limiting, output over-voltage protection, short-circuit protection, as well as thermal shutdown. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup.
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目录
7.相关产品
产品概述 返回TOP
CXSD62255是一款同步、导通时间固定、高效率的降压型DC-DC转换器。其输入电压可高至30V，在低至0.8V的输出电压下带载可达6A。CXSD62255采用固定导通时间的架构，使其在具有快速的瞬态响应的基础上还能维持相对恒定的工作频率。CXSD62255的工作频率可以通过外部电阻在100KHz~1MHz的范围内调整。CXSD62255同时集成了输入欠压保护功能、逐周期限流功能、输出过压保护功能、短路保护功能和过温保护功能。同时，外部可调的软启控制最大程度上的抑制了可能出现在启动阶段的浪涌电流和输出过冲。CXSD62255采用4mm x 4mm的TQFN-23L封装。The CXSD62255 is a synchronous, step-down constant on-time buck regulator capable of driving 6A continuous load current. The CXSD62255 can operate with an input range 2.7V to 30V and the output can be externally set down to 0.8V. The CXSD62255 provides excellent transient response with constant on-time control method while maintaining a nearly constant frequency. The switching frequency can be externally programmed from 100KHz to 1MHz. Fault condition protection includes VIN under-voltage lockout, cycle-by-cycle current limiting, output over-voltage protection, short-circuit protection, as well as thermal shutdown. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. The CXSD62255 is available in a 4mm x 4mm TQFN-23L package.
产品特点 返回TOP
• 宽输入电压范围：2.7V~30V
• 输出负载可达6A
• 良好的线性瞬态响应和负载瞬态响应
• 内部集成Power NMOS:上管37mΩ，下管15mΩ
• 工作频率可在100KHz~1MHz范围内调整
• 外部可调的软启动功能
• 两种工作模式：Force PWM和PFM
• 输出电压状态指示
• 输入欠压保护功能
• 输出过压保护功能
• 短路保护功能
• 逐周期的限流保护功能
• 过温保护功能
• 4mm x 4mm TQFN-23L封装
• 符合RoHS规范及Lead(Pb)-Free Halogen-Free
Wide input voltage range: 2.7V to 30V
6A Output Current
Excellent line and load transient responses
Integrated 37mΩ N-Channel MOSFET For High Side
Integrated 15mΩ N-Channel MOSFET For Low Side
Programmable PWM Frequency from 100kHz to 1000kHz
Adjustable Soft-Start
Selectable Forced PWM or automatic PFM/PWM mode
Power Good Monitoring
Under-Voltage Protection
Over-Voltage Protection
Cycle-by-cycle current limit
Short-circuit protection
Over-Temperature Protection
Available in TQFN-23L 4mmx4mm package
RoHS Compliant and 100% Lead(Pb)- Free, Halogen-Free
应用范围 返回TOP
• 笔记本
• 主板
• 平板电脑
• 便携式移动设备
• 一体机
• 机顶盒
• 液晶电视
• 电信/网络/数据通信设备
Notebook Mother Board
Table PC Hand-Held Portable
AIO PC Set-top boxes
LCD TV
Telecom/Networking/Datacom equipment
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
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电路原理图 返回TOP
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DC/DC开关稳压器 > 降压转换器/控制器 |
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|
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) |
|
|
|
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