Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC7803 Datasheet(PDF) 4 Page - Analog Devices

Part # LTC7803
Description  40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum
PDF  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC7803 Datasheet(HTML) 4 Page - Analog Devices

  LTC7803 Datasheet HTML 1Page - Analog Devices LTC7803 Datasheet HTML 2Page - Analog Devices LTC7803 Datasheet HTML 3Page - Analog Devices LTC7803 Datasheet HTML 4Page - Analog Devices LTC7803 Datasheet HTML 5Page - Analog Devices LTC7803 Datasheet HTML 6Page - Analog Devices LTC7803 Datasheet HTML 7Page - Analog Devices LTC7803 Datasheet HTML 8Page - Analog Devices LTC7803 Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 36 page
background image
LTC7803
4
Rev 0
For more information www.analog.com
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ISENSE+
SENSE+ Pin Current
VSENSE+ = 3.3V
±1
µA
ISENSE–
SENSE1– Pin Current
VSENSE– < 2.9V
3.2V ≤ VSENSE– < INTVCC – 0.5V
VSENSE– > INTVCC + 0.5V
2
30
685
µA
µA
µA
Soft-Start Charge Current
VTRACK/SS = 0V
10
12.5
15
µA
RUN Pin ON Threshold
VRUN Rising
l
1.15
1.2
1.25
V
RUN Pin Hysteresis
VRUN Falling
100
mV
DC Supply Current (Note 5)
VIN Shutdown Current
RUN = 0V
1.2
µA
VIN Sleep Mode Current
SENSE– < 2.9V, EXTVCC = 0V
14
28
µA
SENSE– ≥ 3.2V
VIN Current, EXTVCC = 0V
VIN Current, EXTVCC ≥ 4.8V
EXTVCC Current, EXTVCC ≥ 4.8V
SENSE– Current
5
1
4
9
µA
µA
µA
µA
µA
Pulse-Skipping or Forced Continuous Mode VIN
or EXTVCC Current (Note 3)
2
mA
Gate Drivers
TG or BG On-Resistance
Pull-up
Pull-down
3
1.5
Ω
Ω
TG or BG Transition Time
Rise Time
Fall Time
(Note 6)
CLOAD = 3300pF
CLOAD = 3300pF
25
15
ns
ns
TG Off to BG On Delay Synchronous Switch-On
Delay Time
CLOAD = 3300pF Each Driver
15
ns
BG Off to TG On Delay Top Switch-On Delay
Time
CLOAD = 3300pF Each Driver
15
ns
tON(MIN)
TG Minimum On-Time
(Note 7)
40
ns
Maximum Duty Factor for TG
FREQ = 0V
100
%
Maximum Duty Factor for BG
Output Overvoltage
100
%
BOOST Charge Pump Available Output Current VBOOST = 16V, VSW = 12V, FREQ = 0V,
Forced Continuous Mode
30
65
µA
INTVCC Low Dropout (LDO) Linear Regulator
INTVCC Regulation Point
4.95
5.15
5.35
V
INTVCC Load Regulation
ICC = 0mA to 50mA, VIN ≥ 6V
ICC = 0mA to 50mA, VEXTVCC ≥ 6V
1
1
2
2
%
%
EXTVCC LDO Switchover Voltage
EXTVCC Rising
4.6
4.7
4.8
V
EXTVCC Switchover Hysteresis
EXTVCC Falling
250
mV
UVLO
Undervoltage Lockout
INTVCC Rising
l
4.15
4.25
4.35
V
INTVCC Falling
l
3.75
3.85
3.95
V
ELECTRICAL CHARACTERISTICS 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)



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com