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EL7531IYZ

更新时间： 2024-02-09 10:03:46
品牌 Logo 应用领域
英特矽尔 - INTERSIL 稳压器开关光电二极管
页数 文件大小 规格书
10页 492K
描述
Monolithic 1A Step-Down Regulator with Low Quiescent Current

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EL7531IYZ 数据手册

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EL7531  
®
Data Sheet  
August 5, 2005  
FN7428.6  
Monolithic 1A Step-Down Regulator with  
Low Quiescent Current  
Features  
2
2
• Less than 0.15 in (0.97 cm ) footprint for the complete 1A  
converter  
The EL7531 is a synchronous, integrated FET 1A step-down  
regulator with internal compensation. It operates with an  
input voltage range from 2.5V to 5.5V, which accommodates  
supplies of 3.3V, 5V, or a Li-Ion battery source. The output  
• Components on one side of PCB  
• Max height 1.1mm MSOP10  
can be externally set from 0.8V to V with a resistive  
• Power-Good (PG) output  
IN  
divider.  
• Internally-compensated voltage mode controller  
• Up to 94% efficiency  
The EL7531 features automatic PFM/PWM mode control, or  
PWM mode only. The PWM frequency is typically 1.4MHz  
and can be synchronized up to 12MHz. The typical no load  
quiescent current is only 120µA. Additional features include  
a Power-Good output, <1µA shut-down current, short-circuit  
protection, and over-temperature protection.  
• <1µA shut-down current  
• 120µA quiescent current  
• Overcurrent and over-temperature protection  
• External synchronizable up to 12MHz  
• Pb-Free plus anneal available (RoHS compliant)  
The EL7531 is available in the 10-pin MSOP package,  
2
making the entire converter occupy less than 0.15 in of  
PCB area with components on one side only. The 10-pin  
MSOP package is specified for operation over the full -40°C  
to +85°C temperature range.  
Applications  
• PDA and pocket PC computers  
• Bar code readers  
Ordering Information  
• Cellular phones  
PART NUMBER  
TAPE &  
REEL  
PKG.  
(BRAND)  
PACKAGE  
DWG. #  
• Portable test equipment  
• Li-Ion battery powered devices  
• Small form factor (SFP) modules  
EL7531IY  
(BEAAA)  
10-Pin MSOP  
-
MDP0043  
MDP0043  
MDP0043  
MDP0043  
MDP0043  
MDP0043  
EL7531IY-T7  
(BEAAA)  
10-Pin MSOP  
10-Pin MSOP  
7”  
Pinout and Typical Application Diagram  
EL7531IY-T13  
(BEAAA)  
13”  
-
EL7531  
TOP VIEW  
EL7531IYZ  
(BHAAA) (Note)  
10-Pin MSOP  
(Pb-free)  
EL7531IYZ-T7  
(BHAAA) (Note)  
10-Pin MSOP  
(Pb-free)  
7”  
R *  
1
100kΩ  
1
2
3
4
5
SGND  
PGND  
LX  
FB 10  
C
4
R *  
2
124kΩ  
EL7531IYZ-T13  
(BHAAA) (Note)  
10-Pin MSOP  
(Pb-free)  
13”  
470pF  
VO  
PG  
9
8
7
6
C
1
C
10µF  
2
L
1
10µF  
NOTE: Intersil Pb-free plus anneal products employ special Pb-free  
material sets; molding compounds/die attach materials and 100%  
matte tin plate termination finish, which are RoHS compliant and  
compatible with both SnPb and Pb-free soldering operations. Intersil  
Pb-free products are MSL classified at Pb-free peak reflow  
temperatures that meet or exceed the Pb-free requirements of  
IPC/JEDEC J STD-020.  
PG  
1.8µH  
V
(1.8V@1A)  
O
VIN  
EN  
EN  
R
100Ω  
3
V
(2.5V-6V)  
S
VDD  
SYNC  
SYNC  
C
3
R
6
0.1µF  
100kΩ  
R
R
100kΩ  
100kΩ  
4
5
* V = 0.8V * (1 + R / R )  
O
2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2004, 2005. All Rights Reserved.  
All other trademarks mentioned are the property of their respective owners.  
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EL7531IYZ 替代型号

型号 品牌 替代类型 描述 数据表
EL7531IY-T7 INTERSIL

完全替代

 Monolithic 1A Step-Down Regulator with Low Quiescent Current
EL7531IYZ-T13 INTERSIL

完全替代

 Monolithic 1A Step-Down Regulator with Low Quiescent Current
EL7531IYZ-T7 INTERSIL

类似代替

 Monolithic 1A Step-Down Regulator with Low Quiescent Current

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