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LTC7803 Datasheet(PDF) 3 Page - Analog Devices

Part # LTC7803
Description  40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum
PDF  36 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC7803 Datasheet(HTML) 3 Page - Analog Devices

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LTC7803
3
Rev 0
For more information www.analog.com
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC7803EMSE#PBF
LTC7803EMSE#TRPBF
7803
16-Lead Plastic MSOP
–40°C to 125°C
LTC7803IMSE#PBF
LTC7803IMSE#TRPBF
7803
16-Lead Plastic MSOP
–40°C to 125°C
LTC7803JMSE#PBF
LTC7803JMSE#TRPBF
7803
16-Lead Plastic MSOP
–40°C to 150°C
LTC7803HMSE#PBF
LTC7803HMSE#TRPBF
7803
16-Lead Plastic MSOP
–40°C to 150°C
LTC7803EUD#PBF
LTC7803EUD#TRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC7803IUD#PBF
LTC7803IUD#TRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC7803JUD#PBF
LTC7803JUD#TRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 150°C
LTC7803HUD#PBF
LTC7803HUD#TRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 150°C
AUTOMOTIVE PRODUCTS**
LTC7803EMSE#WPBF
LTC7803EMSE#WTRPBF
7803
16-Lead Plastic MSOP
–40°C to 125°C
LTC7803IMSE#WPBF
LTC7803IMSE#WTRPBF
7803
16-Lead Plastic MSOP
–40°C to 125°C
LTC7803JMSE#WPBF
LTC7803JMSE#WTRPBF
7803
16-Lead Plastic MSOP
–40°C to 150°C
LTC7803HMSE#WPBF
LTC7803HMSE#WTRPBF
7803
16-Lead Plastic MSOP
–40°C to 150°C
LTC7803EUD#WPBF
LTC7803EUD#WTRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC7803IUD#WPBF
LTC7803IUD#WTRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC7803JUD#WPBF
LTC7803JUD#WTRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 150°C
LTC7803HUD#WPBF
LTC7803HUD#WTRPBF
LHGT
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 150°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Supply
VIN
Input Supply Operating Range
4.5
40
V
IVIN
VIN Current in Regulation
Front Page Circuit, 14V to 3.3V
No Load
12
µA
Controller Operation
VOUT
Output Voltage Operating Range
0.8
40
V
VFB
Regulated Feedback Voltage
(Note 4) VIN = 4.5V to 40V,
ITH Voltage = 0.6V to 1.2V
0°C to 85°C, All Grades
l
0.788
0.792
0.800
0.800
0.812
0.808
V
V
Feedback Current
(Note 4)
±5
±50
nA
Feedback Overvoltage Protection Threshold
Measured at VFB Relative to Regulated VFB
7
10
13
%
gm
Transconductance Amplifier gm
(Note 4) ITH = 1.2V, Sink/Source = 5μA
2
mmho
VSENSE(MAX) Maximum Current Sense Threshold
VFB = 0.7V, VSENSE– = 3.3V
l
45
50
55
mV
The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C, VIN = 12V, RUN = 12V, EXTVCC = 0V, unless otherwise noted.
(Note 2)



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