The CXSU6326 is the industry's first 5-lead SOT-23 current mode
DC/DC converter. Intended for small, low power applications, it operates
from an input voltage as low as 1.1V and switches at 1.4MHz, allowing
the use of tiny, low cost capacitors and inductors 2mm or less in height.
Its small size and high switching frequency enables the complete DC/DC
converter function to take up less than 0.2 square inches of PC board
area. Multiple output power supplies can now use a separate regulator
for each output voltage, replacing cumbersome quasi-regulated approaches
using a single regulator and a custom transformer. A constant frequency,
internally compensated current mode PWM architecture results in low,
predictable output noise that is easy to filter. The high voltage switch
on the CXSU6326 is rated at 36V, making the device ideal for boost
converters up to 34V as well as for Single-Ended Primary Inductance
Converter (SEPIC) and flyback designs. The device can generate 5V at up to
200mA from a 3.3V supply or 5V at 175mA from four alkaline cells in a SEPIC
design.
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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 CXSU6326 is the industry's first 5-lead SOT-23 current mode
DC/DC converter. Intended for small, low power applications, it operates
from an input voltage as low as 1.1V and switches at 1.4MHz, allowing
the use of tiny, low cost capacitors and inductors 2mm or less in height.
Its small size and high switching frequency enables the complete DC/DC
converter function to take up less than 0.2 square inches of PC board
area. Multiple output power supplies can now use a separate regulator
for each output voltage, replacing cumbersome quasi-regulated approaches
using a single regulator and a custom transformer. A constant frequency,
internally compensated current mode PWM architecture results in low,
predictable output noise that is easy to filter. The high voltage switch
on the CXSU6326 is rated at 36V, making the device ideal for boost
converters up to 34V as well as for Single-Ended Primary Inductance
Converter (SEPIC) and flyback designs. The device can generate 5V at up to
200mA from a 3.3V supply or 5V at 175mA from four alkaline cells in a SEPIC
design. The CXSU6326 is available in the 5-lead SOT-23 package.
二.产品特点
■ Uses Tiny Capacitors and Inductor
■ Internally Compensated
■ Fixed Frequency 1.4MHz Operation
■ Operates with VIN as Low as 1.1V
■ 3V at 30mA from a Single Cell
■ 5V at 200mA from 3.3V Input
■ 15V at 60mA from Four Alkaline Cells
■ High Output Voltage: Up to 34V
■ Low Shutdown Current:<1m A
■ Low VCESAT Switch: 300mV at 300mA
■ Tiny 5-Lead SOT-23 Package
三.应用范围
■ Digital Cameras
■ Pagers
■ Cordless Phones
■ Battery Backup
■ LCD Bias
■ Medical Diagnostic Equipment
■ Local 5V or 12V Supply
■ External Modems
■ PC Cards
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
| 系列名称 | 输入电压 (V) | 输出电压 (V) | 最大输出电流 (mA) | 振荡频率 | 封装 | 特点 | |||
| 最小 | 最大 | 最小 | 标准 | 最大 | |||||
| CXSU6324 | 2.5V | 10V | 可调 | 600 | 1.2MHZ | SOT23-6 | PWM异步升压恒流LED驱动：效率85%、（串联8灯或3串7并） | ||
| CXSU6325 | 2.5V | 6V | 可调 | 1300 | 1.3MHZ | QFN8/SOT23-6 | PWM异步升压恒流LED驱动：效率85%、（3串13并） | ||
| CXSU6326 | 2.5V | 10 | 可调 | 300 | 1.2MHZ | SOT23-6 | PWM异步升压恒流LED驱动：效率85%、（串联4灯） | ||
| CXSU6327 | 2.3 | 24 | 2.3 | 可调 | 28 | 1000 | 1.0MHZ | SOT23-6 | PWM异步升压恒流LED驱动：效率85%、（串联5灯） |
| CXSU6323 | 2.7 | 10 | 2.3 | 可调 | 36 | 200 | 1.2MHZ | SOT23-7 | PWM异步升压恒流LED驱动：效率85%、（串联6灯） |
