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SP6126EK1L/TR PDF预览

SP6126EK1L/TR

更新时间: 2024-11-06 02:54:43
品牌 Logo 应用领域
西伯斯 - SIPEX 控制器
页数 文件大小 规格书
14页 465K
描述
High-Voltage, Step Down Controller in TSOT6

SP6126EK1L/TR 数据手册

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Solved by  
SP6126  
TM  
High-Voltage, Step Down Controller in TSOT6  
GND  
LX  
FB  
FEATURES  
Wide 4.5V – 29V Input Voltage Range  
Internal Compensation  
6
5
4
Built-in High Current PMOS Driver  
Adjustable Overcurrent Protection  
Internal soft-start  
600kHz Constant Frequency Operation  
0.6V Reference Voltage  
SP6126  
6 PinTSOT  
1% output setpoint accuracy  
Lead Free, RoHS Compliant Package:  
Small 6-Pin TSOT  
1
2
3
V
IN  
GATE  
VDR  
DESCRIPTION  
The SP6126 is a PWM controlled step down (buck) voltage mode regulator with VIN feedforward and  
internal Type-II compensation. It operates from 4.5V to 29V making is suitable for 5V, 12V, and 24V  
applications. By using a PMOS driver, this device is capable of operating at 100% duty cycle. The  
high side driver is designed to drive the gate 5V below VIN. The programmable overcurrent  
protection is based on high-side MOSFET’s ON resistance sensing and allows setting the  
overcurrent protection value up to 300mV threshold (measured from VIN-LX). The SP6126 is  
available in a space-saving 6-pin TSOT package making it the smallest controller available capable  
of operating from 24VDC supplies.  
TYPICAL APPLICATION CIRCUIT  
VIN  
C1  
10uF  
Q1  
Si2343DS  
12V  
2
6
4
1
Gate  
LX  
GND  
VOUT  
Vin  
L1, IHLP-2525CZ  
6.8uH, 60mOhm, 4.5A  
Rs=1k  
C7  
0.1uF  
C4  
22uF  
3.3V  
0-2.0A  
SP6126  
Ds RZ  
MBRA340T3G 2K  
3
VDR  
R1  
200k, 1%  
CZ  
62pF  
GND  
VFB  
GND  
5
R2  
44.2k, 1%  
D1 1N4148  
SHDN  
High=Off  
Mar 29-07 RevD  
SP6126: TSOT-6 PFET Buck Controller  
2007 Sipex Corporation  
1

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