CXSD6127 is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to

CXSD6127 is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to 2A of output current. The device operates from an input voltage range of 2.5V to 5.5V and provides

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（产品PDF文档） 
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品

一,产品概述(General Description)      

   The CXSD6127 is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to 2A of

output current. The device operates from an input voltage range of 2.5V to 5.5V and provides an output voltage

from 0.6V to VIN, making the CXSD6127 ideal for low voltage power conversions. Running at a fixed frequency

of 1.3MHz allows the use of small external components,such as ceramic input and output caps, as well as small

inductors, while still providing low output ripples. This low noise output along with its excellent efficiency

achieved by the internal synchronous rectifier, making CXSD6127 an ideal green replacement for large power

consuming linear regulators. Internal soft-start control circuitry reduces inrush current. Short-circuit and

thermal-overload protection improves design reliability.The CXSD6127 is available in a SOT23-6 Package.

二.产品特点(Features)

High Efficiency: Up to 97%

Capable of Delivering 2A

1.3MHz Switching Frequency

No External Schottky Diode Needed

Light-load Mode

Internal Compensation and Soft-Start

Current Mode control

0.6V Reference for Low Output voltages

Logic Control Shutdown (IQ<1uA)

Thermal shutdown and UVLO

Available in SOT23-6

三,应用范围 (Applications)

Digital Cameras

MP3 and MP4 players

Set top boxes

Wireless and DSL Modems

USB supplied Devices in Notebooks

Portable Devices

四.技术规格书下载（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 (Package)

PIN NO	SYMBOL	DESCRIPTTION
1	EN	Enable pin
2	GND	Ground
3	SW	Power Switch   Output
4	IN	Power Supply   Input
5	NC	Not Connected
6	FB	Feedback input   pin

六.电路原理图


七,功能概述

Parameter		Value
Max Input Voltage		6.5V
Max Operating   Junction Temperature(Tj)		125°C
Ambient   Temperature(Ta)		-40°C – 85°C
Maximum Power   Dissipation	SOT23-5	400mW
Storage   Temperature(Ts)		-40°C - 150°C
Lead Temperature   & Time		260°C, 10S

八,相关芯片选择指南

降压型DC/DC转换器(DC/DC Step-down Converter)
Part No.	Power switching	MODE	VIN	VOUT	IQ	FOSC	Eff.
CXSD6123	Built-in MOSFETSynchronous	PWM/PFM	Max 7V	ADJ	35μA	1.5MHz	96%
CXSD6124	Built-in MOSFETSynchronous	PWM/PFM	2.6~6V	ADJ	40μA	1.5MHz	96%
CXSD6125	Built-in MOSFET Synchronous	PWM/PFM	2.6~7V	ADJ	50μA	1.5MHz	97%
CXSD6126	Built-in MOSFET Synchronous	PWM/PFM	2.5~6V	ADJ	40μA	1.5MHz	96%
CXSD6127	Built-in MOSFET Synchronous	PWM/PFM	2.5~5.5V	ADJ	50μA	1.3MHz	97%
CXSD6128	Built-in MOSFET Synchronous	PWM/PFM	2.6~6V	ADJ	30μA	3MHz	96%
CXSD6129	Built-in MOSFET Synchronous	PWM/PFM	2.6~5.5V	ADJ	50μA	1.4MHz	97%
CXSD6130	Built-in MOSFET Synchronous	PWM/PFM	3.5~16V	ADJ	0.4mA	600KHz	96%
CXSD6131	Built-in MOSFET Synchronous	PWM/PFM	3.5~16V	ADJ	0.4mA	600KHz	96%
CXSD6132	Built-in MOSFET Synchronous	PWM/PFM	4.2~18V	ADJ	0.8mA	500KHz	96%
CXSD6133B	Built-in MOSFET Synchronous	PWM/PFM	4.7~20V	ADJ	50μA	500KHz	95%
CXSD6134	Built-in MOSFET Synchronous	PWM/PFM	4.7~20V	ADJ	50μA	500KHz	95%
CXSD6136	Built-in MOSFET Synchronous	PWM/PFM	4.5~20V	ADJ	50μA	410KHz	95%
CXSD6137	Built-in MOSFET Synchronous	PWM/PFM	4.5~18V	ADJ	80μA	420KHz	95%
CXSD6138	Built-in MOSFET Synchronous	PWM/PFM	4.5~18V	ADJ	80μA	420KHz	95%
CXSD6139	Built-in MOSFET Synchronous	PWM/PFM	4.5~18V	ADJ	80μA	420KHz	95%
CXSD6140	Built-in MOSFET	PWM/PFM	4~24V	ADJ	0.6mA	1.4MHz	90%
CXSD6141	Built-in MOSFET	PWM/PFM	4~38V	ADJ	0.6mA	660KHz	92%
CXSD6141B	Built-in MOSFET	PWM/PFM	4~38V	ADJ	0.6mA	660KHz	92%
CXSD6142	Built-in MOSFET Synchronous	PWM/PFM	4~40V	ADJ	50μA	2MHz	93%
CXSD6143	Built-in MOSFET	PWM/PFM	4.2~40V	ADJ	200μA	1.8MHz	90%
CXSD6144C	Built-in MOSFET Synchronous	PWM/PFM	4.5~24V	ADJ	50μA	500KHz	94%
CXSD6145B	Built-in MOSFET Synchronous	PWM	5~20V	0.923~15V ADJ	60μA	360KHz	94%