NR111E PDF预览

NR111E

更新时间: 2025-07-23 17:15:35
品牌 Logo 应用领域
三垦 - SANKEN 过电流保护
页数 文件大小 规格书
24页 1140K
描述
提供各种DC/DC转换控制IC,分别可对应输出电压固定/可变、宽范围输入电压、同步/非同步整流方式,低ESR要求。同时产品内置过电流保护,过热保护、UVLO等各种保护功能。

NR111E 数据手册

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31 V, Buck Converter  
NR110E Series  
Data Sheet  
Description  
Package  
The NR110E series are buck converter ICs that  
integrate the power MOSFET. With the current mode  
control, ultra low ESR capacitors such as ceramic  
capacitors can be used. The ICs have protection  
functions such as Overcurrent Protection (OCP),  
Undervoltage Lockout (UVLO) and Thermal Shutdown  
(TSD). An adjustable Soft-start by an external capacitor  
prevents the excessive inrush current in startup. The  
feature increasing efficiency at light loads allows the  
device to be used in the energy-saving applications. The  
ICs integrate phase compensation circuit which reduces  
the number of external components and simplifies the  
design of customer application. The IC has the enable  
function by the EN pin that turns the regulator on or off.  
The package of NR110E series is the eSOIC8 with an  
exposed thermal pad on the back side.  
eSOIC8  
1
2
8
7
3
4
6
5
Not to scale  
Features  
Selection Guide  
Bare Lead Frame: Pb-free (RoHS Compliant)  
Up to 94% Efficiency  
Up to 68% Efficiency at Maximum at Light Load  
(VIN = 12 V, VO = 5 V, IO = 20 mA)  
Current mode PWM control  
Stable with Low ESR Ceramic Output Capacitors  
No External Components Required by Incorporating  
Phase Compensation  
Specifications  
Input Voltage, VIN: 6.5 V to 31 V  
Output Voltage, VO: 0.8 V to 24 V  
Part Number  
NR111E  
IOUT (max.)  
4 A  
fOSC (typ.)  
350 kHz  
364 kHz  
NR119E  
2 A  
Soft-start Function  
Adjustable Soft-start time with an External Capacitor  
Enable Function  
Protection Functions:  
Applications  
Overcurrent Protection (OCP): Drooping, auto-restart  
Thermal Shutdown (TSD): Auto-restart  
Undervoltage Lockout (UVLO)  
AV Equipment  
Auxiliary Power Supply  
Typical Application  
NR110E  
R3  
1
2
3
4
BS  
SS  
8
7
6
5
R1  
IN  
EN  
C3  
SW  
GND  
ISET  
FB  
L1  
R5  
VIN  
VOUT  
C1 C2  
C7 D1  
C4 C5  
R4  
R6  
GND  
GND  
NR110E-DSE Rev.1.9  
Dec. 07, 2022  
SANKEN ELCTRIC CO., LTD.  
https://www.sanken-ele.co.jp/en  
1
© SANKEN ELECTRIC CO., LTD. 2012  
 

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