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LMK212B7106MG PDF预览

LMK212B7106MG

更新时间: 2022-03-22 07:29:06
品牌 Logo 应用领域
特瑞仕 - TOREX 转换器
页数 文件大小 规格书
22页 824K
描述
400mA Inductor Built-in Step-Down “micro DC/DC” Converters

LMK212B7106MG 数据手册

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XCL208/XCL209 Series  
ETR28003-001a  
400mA Inductor Built-in Step-Down “micro DC/DC” Converters  
GreenOperation Compatible  
GENERAL DESCRIPTION  
The XCL208/XCL209 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in  
one tiny package (2.5mm×2.15mm, h=1.05mm). A stable power supply with an output current of 400mA is configured using only  
two capacitors connected externally.  
An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring.  
A wide operating voltage range of 1.8V (2.0V) to 6.0V enables support for applications that require an alkaline battery (2-cell) or  
AC adapter (5V) power supply. An internally fixed output voltage (0.8V to 4.0V) or an externally set output voltage can be selected.  
The XCL208/XCL209 series uses synchronous rectification at an operating frequency of 3.0MHz. PWM control (XCL208) or  
automatic PWM/PFM switching control (XCL209) can be selected. The XCL208 series has a fixed frequency, enabling the  
suppression of output ripple. The XCL209 series achieves high efficiency while holding down output ripple across the full range of  
loads, from light to heavy, enabling the extension of battery operation time.  
Soft start and on/off functions with CL discharge are provided, and the IC can be put in the standby state by inputting a Low level  
signal into the CE pin.  
FEATURES  
APPLICATIONS  
Mobile phones, Smart phones  
Bluetooth Headsets  
Tablet PCs  
Input Voltage  
: 1.8V ~ 6.0V (Type F)  
: 2.0V ~ 6.0V (Type A/B)  
: 0.8V ~ 4.0V (±2.0%)  
: 90% (VIN=4.2V, VOUT=3.3V)  
: 400mA  
Fixed Output Voltage  
High Efficiency  
PND  
Output Current  
PC peripheral devices  
DSC, Camcorders  
Oscillation Frequency  
CE Function  
: 3.0MHz (±15%)  
: Active High  
Soft-start Circuit Built-in  
CL High Speed Auto Discharge  
: Current Limiter Built-in  
(Constant Current & Latching)  
: PWM (XCL208)  
Protection Circuits  
Control Methods  
TYPICAL APPLICATION CIRCUIT  
PWM/PFM (XCL209)  
Operating Ambient Temperature : -40+85℃  
Package  
: USP-10B03  
Environmentally Friendly  
: EU RoHS Compliant, Pb Free  
TYPICAL PERFORMANCE  
CHARACTERISTICS  
Efficiency vs. Output Current  
XCL208x333DR/XCL209x333D  
XCL208A / XCL208B / XCL209A / XCL209B Type  
100  
XCL209(PWM/PFM)  
80  
60  
VIN= 4.2V  
40  
5.0V  
XCL208(PWM)  
VOUT =3.3V  
20  
0
0.01  
0.1  
1
10  
100  
1000  
Output Current:IOUT (mA)  
XCL208F / XCL209F Type  
1/22  

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