CXSD6270是一款高效、同步降压DC-DC转换器，专为电池供电的便携式应用而优化它支持高达1.2A的输出电流该装置具有2.7v至5.5v的宽输入电压范围，支持电压范围扩大的单锂离子电池、2和3个碱性电池、3.3v和5v的输入电压范围。
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[ 产品资料下载 ]
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）
一.产品概述
The CXSD6270 is a high efficiency, synchronous step down DC-DC converter optimized for battery powered portable applications. It supports up to 1.2A output current. With a wide input voltage range of 2.7V to 5.5V, the device supports applications powered by single Li-ion battery with extended voltage range, two and three alkaline cell, 3.3V and 5V input voltage range. The CXSD6270 operates at 1.5MHz fixed switching frequency with Pulse-Width-Modulation (PWM) and enters Pulse-Skipping-Modulation (PSM) operation at light load current to maintain high efficiency over the entire load current range. 100% duty cycle capability provides low dropout operation, extending battery life in portable systems.
The switching frequency is internally set at 1.5MHz, allowing the use of tiny surface mount inductor and input/output capacitors. Low output voltage is easily supported with the 0.6V feedback reference voltage.
The CXSD6270 is available in SOT-23-5L package. Standard product is Pb-free and Halogen-free.
二.产品特点
Input voltage range : 2.7~5.5V
Continue output current : 1.2A
Switching frequency : 1.5MHz (Typ.)
Efficiency : Up to 92%
Feedback reference voltage : 0.6V
100% duty cycle for low dropout operation
Adjustable Output Voltage
三.应用范围
Cellphones
PADs
STBs
DSCs
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
| 降压型开关稳压器 | |||||||||||
| Product | VIN | VOUT | IOUT | IQ | Freq. | VFB | Efficiency | PD(@TA = 25¡ãC) | Package | ||
| Min | Max | Min | Max | Max | Typ | Typ | Typ | Max | Max | ||
| (V) | (V) | (mA) | (uA) | (KHz) | (V) | % | (W) | ||||
| CXSD6271 | 2.7 | 5.5 | 1 | 4 | 2000 | 80 | 1000 | 0.6 | 96% | 0.5 | SOT-23-5L |
| CXSD6272 | 3 | 5.5 | 1 | 4 | 2000 | 80 | 1000 | 0.6 | 96 | 0.5 | SOT-23-5L |
| CXSD6270 | 2.7 | 5.5 | 1 | 4 | 1200 | 65 | 1500 | 0.6 | 92 | 0.5 | SOT-23-5L |
| CXSD6269 | 2.7 | 5.5 | 1 | 4 | 600 | 22 | 1500 | 0.6 | 95 | 0.5 | SOT-23-5L |
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下一篇▶:CXSD6269恒定频率电流模式架构的高效单片同步降压调节器2.7V到5.5V的输入电压适合单锂离子电池供电
