Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC7803 Datasheet(PDF) 9 Page - Analog Devices

Part # LTC7803
Description  40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Controller
PDF  42 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) 9 Page - Analog Devices

Back Button 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 LTC7803 Datasheet HTML 10Page - Analog Devices LTC7803 Datasheet HTML 11Page - Analog Devices LTC7803 Datasheet HTML 12Page - Analog Devices LTC7803 Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 42 page
background image
LTC7811
9
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Buck Foldback Current Limit
SENSE1,2– and SENSE3+ Input
Current vs Temperature
SENSE1,2+ and SENSE3− Input
Current vs Temperature
Current Sense Threshold
vs ITH Voltage
SENSE1,2– and SENSE3+ Current
vs Voltage
Maximum Current Sense
Threshold vs SENSE Common
Mode Voltage
PULSE–SKIPPING
Burst Mode OPERATION
FORCED CONTINUOUS
ITH VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
–30
–20
–10
0
10
20
30
40
50
Threshold vs ITH Voltage
Maximum Current Sense
7811 G19
SENSE1– CURRENT
SENSE2– OR SENSE3+ CURRENT
MODE = INTVCC
SENSE VOLTAGE (V)
0
5
10
15
20
25
30
35
40
0
100
200
300
400
500
600
700
800
900
vs Voltage
SENSE1,2– and SENSE3+ Current
7811 G20
SENSE VOLTAGE (V)
0
5
10
15
20
25
30
35
40
0
10
20
30
40
50
60
70
vs SENSE Common Mode Voltage
Maximum Current Sense Threshold
7811 G21
FEEDBACK VOLTAGE (mV)
0
100 200 300 400 500 600 700 800
0
10
20
30
40
50
60
70
Buck Foldback Current Limit
7811 G22
SENSE1– = INTVCC–0.5V
SENSE2–,SENSE3+ = INTVCC–0.5V
SENSE = INTVCC+0.5V
MODE = INTVCC
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
–100
0
100
200
300
400
500
600
700
800
900
Current vs Temperature
SENSE1,2–, SENSE3+ Input
7811 G23
MODE = INTVCC
SENSE = 0V
SENSE = 1V
SENSE = 3.3V
SENSE = 12V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
–1.0
–0.8
–0.6
–0.4
–0.2
0.0
0.2
0.4
0.6
0.8
1.0
Current vs Temperature
SENSE1,2+ and SENSE3– Input
7811 G24
Oscillator Frequency
vs Temperature
Output Voltage Noise Spectrum
Boost Current Monitor Voltage
vs Sense Voltage
RFREQ=374k (100kHz)
RFREQ=75k (500kHz)
RFREQ=12.5k (3MHz)
FREQ=GND (380kHz)
FREQ=INTVCC (2.25MHz)
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
–6
–4
–2
0
2
4
6
8
10
vs Temperature
Oscillator Frequency
7811 G25
FIGURE 14 CIRCUIT, VOUT = 5V
DETECTOR = PEAK–HOLD
RBW = 5.1kHz
PLLIN/SPREAD = GND
PLLIN/SPREAD = INTVCC
FREQUENCY (MHz)
1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Output Voltage Noise Spectrum
7811 G26
VSENSE3+ – VSENSE3– (mV)
–30 –20 –10 0
10 20 30 40 50 60
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Output vs Sense Voltage
Boost Channel Current Monitor
7811 G27
MODE = INTVCC
VSENSE3+ = 12V



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 37 38 39 40 41 42


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