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MP2322 PDF预览

MP2322

更新时间: 2024-11-05 17:01:15
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
19页 1248K
描述
1A、3-22V、5μA IQ 同步降压变换器,采用 1.5x2mm QFN 封装

MP2322 数据手册

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MP2322  
DESCRIPTION  
FEATURES  
The MP2322 is a synchronous, rectified, step-  
down, switch-mode converter with built-in  
internal power MOSFETs and high light-load  
efficiency. The MP2322 offers a very compact  
solution that achieves 1A of continuous output  
current with excellent load and line regulation  
over a wide input supply range.  
Wide 3V to 22V Operating Input Range  
5µA Low IQ  
1A Load Current  
260mΩ/120mΩ RDS(ON) Internal Power  
MOSFETs  
High Efficiency from 100µA to 1A Load  
during VIN from 4V to 22V  
Power-Save Mode (PSM) in Light-Load  
Condition  
The MP2322 switching edge is optimized for  
EMI reduction. Constant-on-time (COT) control  
provides seamless mode transition and a fast  
load transient response.  
1.25MHz Fixed Switching Frequency during  
CCM  
TON Extension to Support Large Duty Cycles  
Power Good (PG) Indication  
EN Shutdown Output Discharge  
OCP and OVP and Hiccup  
Output Adjustable from 0.6V  
Available in a QFN-8 (1.5mmx2mm)  
Package  
Full protection features include over-current  
protection (OCP), over-voltage protection  
(OVP), and thermal shutdown.  
The MP2322 requires a minimal number of  
readily  
available,  
standard,  
external  
components and is available in a space-saving  
QFN-8 (1.5mmx2mm) package.  
APPLICATIONS  
IOT  
Home Automation, Home Security  
Single- or Multi-Cell Li-Ion Battery Systems  
Multi-Cell Dry Battery Systems  
12V Input Power Rails  
White Goods  
All MPS parts are lead-free, halogen-free, and adhere to the RoHS  
directive. For MPS green status, please visit the MPS website under Quality  
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are  
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.  
TYPICAL APPLICATION  
Efficiency vs. Output Current  
VIN = 12V, VOUT = 3.3V, L = 3.3µH, DCR =  
9mΩ  
3-22V  
VIN  
IN  
BST  
SW  
C3  
0.1µ  
F
100  
C1  
µF  
VOUT  
L1  
3.3µH  
22  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
V/1A  
3.3  
EN  
MP2322  
3.3V  
C2  
R3  
µF  
22  
100kΩ  
R1  
PG  
976kΩ  
FB  
R2  
Vin=4.5V  
Vin=12V  
Vin=22V  
VCC  
C4  
GND  
220kΩ  
1µF  
0.0001  
0.001  
0.01  
0.1  
1
Load current(A)  
MP2322 Rev. 1.01  
9/6/2019  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2019 MPS. All Rights Reserved.  
1

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