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LM26001

更新时间： 2024-11-23 02:58:15
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LM26001/-Q1 1.5-A Switching Regulator With High-Efficiency Sleep Mode

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LM26001, LM26001-Q1  
SNVS430I –MAY 2006–REVISED MARCH 2015  
LM26001/-Q1 1.5-A Switching Regulator With High-Efficiency Sleep Mode  
1 Features  
3 Description  
The LM26001 is a switching regulator designed for  
the high-efficiency requirements of applications with  
standby modes. The device features a low-current  
sleep mode to maintain efficiency under light-load  
conditions and current-mode control for accurate  
regulation over a wide input voltage range. Quiescent  
current is reduced to 10 µA typically in shutdown  
mode and less than 40 µA in sleep mode. Forced  
PWM mode is also available to disable sleep mode.  
1
•
LM26001-Q1 is an Automotive-Grade Product that  
is AEC-Q100 Grade 1 Qualified (–40°C to +125°C  
Operating Junction Temperature)  
•
•
•
•
•
•
•
•
•
•
•
•
•
•
High-Efficiency Sleep Mode  
40-µA Typical Iq in Sleep Mode  
10-µA Typical Iq in Shutdown Mode  
3.0-V Minimum Input Voltage  
4.0-V to 38-V Continuous Input Range  
1.5% Reference Accuracy  
The LM26001 can deliver up to 1.5 A of continuous  
load current with a fixed current limit, through the  
internal N-channel switch. The part has a wide input  
voltage range of 4.0 V to 38 V and can operate with  
input voltages as low as 3 V during line transients.  
Cycle-by-Cycle Current Limit  
Adjustable Frequency (150 kHz to 500 kHz)  
Synchronizable to an External Clock  
Power Good Flag  
Operating frequency is adjustable from 150 kHz to  
500 kHz with  
a single resistor and can be  
Forced PWM Function  
synchronized to an external clock.  
Adjustable Soft-Start  
Other features include Power Good, adjustable soft-  
start, enable pin, input undervoltage protection, and  
an internal bootstrap diode for reduced component  
count.  
HTSSOP-16 Exposed Pad Package  
Thermal Shut Down  
2 Applications  
Device Information(1)  
•
•
•
•
•
Automotive Telematics  
Navigation Systems  
PART NUMBER  
LM26001  
PACKAGE  
BODY SIZE (NOM)  
HTSSOP (16)  
5.00 mm x 4.40 mm  
In-Dash Instrumentation  
Battery-Powered Applications  
LM26001-Q1  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Standby Power for Home Gateways/Set-top  
Boxes  
Typical Application Circuit  
VIN  
1
2
12  
VIN  
VIN  
VBIAS  
VOUT  
C6  
16  
15  
SW  
C1  
L
3
4
PGOOD  
EN  
+
SW  
C4  
D1  
R1  
14  
7
R4  
BOOT  
EN  
LM26001  
11  
SYNC  
SS  
FB  
VDD  
5
9
6
13  
8
COMP  
SYNC  
FREQ  
FPWM  
VDD  
GND  
C8  
R2  
C5  
10  
R6  
EP  
17  
C3  
R3  
R5  
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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LM26001 替代型号

型号 品牌 替代类型 描述 数据表
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