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LM2696 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce LM2696
Description  LM2696 3A, Constant On Time Buck Regulator
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM2696 Fiches technique(HTML) 1 Page - Texas Instruments

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RFB1
RFB2
SW
L
COUT
VOUT
LM2696
DCATCH
GND
FB
CBOOT
CBOOT
CEXT
EXTVCC
CSS
CAVIN
CIN
SS
VIN
PVIN
AVIN
RON
RON
SD
PGOOD
VPGOOD
VSD
CSD
LM2696
www.ti.com
SNVS375B – OCTOBER 2005 – REVISED APRIL 2013
LM2696 3A, Constant On Time Buck Regulator
Check for Samples: LM2696
1
FEATURES
DESCRIPTION
The LM2696 is a pulse width modulation (PWM) buck
2
Input Voltage Range of 4.5V–24V
regulator capable of delivering up to 3A into a load.
Constant On-Time
The control loop utilizes a constant on-time control
No Compensation Needed
scheme with input voltage feed forward. This provides
a topology that has excellent transient response
Maximum Load Current of 3A
without the need for compensation. The input voltage
Switching Frequency of 100 kHz–500 kHz
feed forward ensures that a constant switching
Constant Frequency Across Input Range
frequency is maintained across the entire VIN range.
TTL Compatible Shutdown Thresholds
The LM2696 is capable of switching frequencies in
Low Standby Current of 12 µA
the range of 100 kHz to 500 kHz. Combined with an
integrated 130 m
Ω high side NMOS switch the
130 m
Ω Internal MOSFET Switch
LM2696 can utilize small sized external components
and provide high efficiency. An internal soft-start and
APPLICATIONS
power-good flag are also provided to allow for simple
High Efficiency Step-Down Switching
sequencing between multiple regulators.
Regulators
The LM2696 is available with an adjustable output in
LCD Monitors
an exposed pad HTSSOP-16 package.
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 © 2005–2013, 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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