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LM2735-Q1

更新时间： 2024-09-17 01:16:23
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描述
LM2735-xx 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC-DC Regulator

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LM2735-Q1 数据手册

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LM2735, LM2735-Q1  
SNVS485G –JUNE 2007–REVISED AUGUST 2015  
LM2735-xx 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC-DC Regulator  
1 Features  
3 Description  
The LM2735 device is an easy-to-use, space-efficient  
2.1-A low-side switch regulator, ideal for Boost and  
SEPIC DC-DC regulation. The device provides all the  
active functions to provide local DC-DC conversion  
with fast-transient response and accurate regulation  
in the smallest PCB area. Switching frequency is  
internally set to either 520 kHz or 1.6 MHz, allowing  
the use of extremely small surface mount inductor  
and chip capacitors, while providing efficiencies of up  
to 90%. Current-mode control and internal  
1
•
Input Voltage Range: 2.7 V to 5.5 V  
Output Voltage Range: 3 V to 24 V  
•
•
2.1-A Switch Current Over Full Temperature  
Range  
•
•
•
•
•
•
Current-Mode Control  
Logic High Enable Pin  
Ultra-Low Standby Current of 80 nA in Shutdown  
170-mΩ NMOS Switch  
compensation  
provide  
ease-of-use,  
minimal  
±2% Feedback Voltage Accuracy  
Ease-of-Use, Small Total Solution Size  
component count, and high-performance regulation  
over a wide range of operating conditions. External  
shutdown features an ultra-low standby current of 80  
nA, ideal for portable applications. Tiny SOT-23,  
WSON, and MSOP-PowerPAD packages provide  
space savings. Additional features include internal  
soft start, circuitry to reduce inrush current, pulse-by-  
pulse current limit, and thermal shutdown.  
–
–
–
–
–
–
Internal Soft Start  
Internal Compensation  
Two Switching Frequencies  
520 kHz (LM2735-Y)  
1.6 MHz (LM2735-X)  
Uses Small Surface Mount Inductors and Chip  
Capacitors  
Device Information(1)  
PART NUMBER  
PACKAGE  
WSON (6)  
SOT-23 (5)  
BODY SIZE (NOM)  
3.00 mm × 3.00 mm  
1.60 mm × 2.90 mm  
–
Tiny SOT-23, WSON, and MSOP-PowerPAD  
Packages  
LM2735  
•
LM2735-Q1 is AEC-Q100 Grade 1 Qualified and  
is Manufactured on an Automotive Grade Flow  
MSOP-PowerPAD (8) 3.00 mm × 3.00 mm  
WSON (6)  
SOT-23 (5)  
3.00 mm × 3.00 mm  
1.60 mm × 2.90 mm  
LM2735-Q1  
2 Applications  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
•
LCD Display Backlighting For Portable  
Applications  
•
•
•
•
•
OLED Panel Power Supply  
USB-Powered Devices  
Digital Still and Video Cameras  
White LED Current Source  
Automotive  
space  
Typical Boost Application Circuit  
Efficiency vs Load Current VO = 12 V  
V
IN  
2.7V-5.5V  
12V  
L
D
1
1
R
2
C
3
R
3
4
5
3
2
1
C
2
R
1
C
1
GND  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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LM2735-Q1 替代型号

型号 品牌 替代类型 描述 数据表
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