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LM26001B Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza LM26001B
Descripción Electrónicos  LM26001B 1.5A Switching Regulator with High Efficiency Sleep Mode
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

LM26001B Datasheet(HTML) 1 Page - Texas Instruments

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LM26001B
SW
SW
BOOT
FB
COMP
VDD
GND
FPWM
FREQ
SS
SYNC
EN
PGOOD
VIN
2
3
13
9
14
4
10
6
11
5
8
7
15
16
VIN
VOUT
VIN
VBIAS
1
12
C1
C5
R3
C8
R5
L
C4
R2
R1
C6
C3
R4
D1
VDD
17
EP
R6
EN
SYNC
+
LM26001B
www.ti.com
SNVS491B – MAY 2007 – REVISED APRIL 2013
LM26001B 1.5A Switching Regulator with High Efficiency Sleep Mode
Check for Samples: LM26001B
1
FEATURES
DESCRIPTION
The LM26001B is a switching regulator designed for
2
High Efficiency Sleep Mode
the high efficiency requirements of applications with
40 µA Typical Iq in Sleep Mode
stand-by modes. The device features a low-current
10 µA Typical Iq in Shutdown Mode
sleep mode to maintain efficiency under light-load
conditions and current-mode control for accurate
3.0V Minimum Input Voltage
regulation over a wide input voltage range. Quiescent
4.0V to 18V Continuous Input Range
current is reduced to 10 µA typically in shutdown
2.0% Reference Accuracy
mode and less than 40 µA in sleep mode. Forced
PWM mode is also available to disable sleep mode.
Cycle-by-Cycle Current Limit
Adjustable Frequency (150 kHz to 500 kHz)
The LM26001B can deliver up to 1.5A of continuous
load current with a fixed current limit, through the
Synchronizable to an External Clock
internal N-channel switch. The part has a wide input
Power Good Flag
voltage range of 4.0V to 18V and can operate with
Forced PWM Function
input voltages as low as 3V during line transients.
Adjustable Soft-Start
Operating frequency is adjustable from 150 kHz to
HTSSOP-16 Exposed Pad Package
500
kHz
with
a
single
resistor
and
can
be
synchronized to an external clock.
Thermal Shut Down
Other features include Power good, adjustable soft-
APPLICATIONS
start, enable pin, input under-voltage protection, and
an internal bootstrap diode for reduced component
Automotive Telematics
count.
Navigation Systems
In-Dash Instrumentation
Battery Powered Applications
Stand-by Power for Home Gateways/Set-Top
Boxes
Typical Application Circuit
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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