Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC7803 Datasheet(PDF) 6 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) 6 Page - Analog Devices

Back Button 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 LTC7803 Datasheet HTML 10Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 36 page
background image
LTC7803
6
Rev 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency and Power Loss
vs Output Current
Efficiency vs Output Current
Efficiency vs Input Voltage
Load Step Burst Mode Operation
Load Step Pulse-Skipping Mode
Load Step Forced Continuous Mode
Inductor Current at Light Load
Soft Start-Up
Regulated Feedback Voltage vs
Temperature
BURST EFFICIENCY
PULSE–SKIPPING
LOSS
FCM EFFICIENCY
BURST LOSS
FCM LOSS
PULSE–SKIPPING
EFFICIENCY
VIN = 12V
VOUT = 3.3V
FIGURE 11 CIRCUIT
OUTPUT CURRENT (A)
0.001
0.01
0.1
1
10 20
0
10
20
30
40
50
60
70
80
90
100
1
10
100
1k
10k
100k
vs Output Current
Efficiency and Power Loss
7803 G01
VOUT = 3.3V
BURST MODE OPERATION
FIGURE 11 CIRCUIT
VIN = 12V
VIN = 24V
VIN = 36V
OUTPUT CURRENT (A)
0.0001 0.001
0.01
0.1
1
10
30
40
50
60
70
80
90
100
0.1
1
10
100
1k
10k
Efficiency vs Output Current
7803 G02
ILOAD = 10A
VOUT = 3.3V
FIGURE 11 CIRCUIT
ILOAD = 1mA
INPUT VOLTAGE (V)
0
5
10
15
20
25
30
35
40
70
75
80
85
90
95
100
Efficiency vs Input Voltage
7803 G03
VIN = 12V
VOUT=3.3V
200mA TO 10A LOAD STEP
FIGURE 11 CIRCUIT
100µs/DIV
VOUT
200mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
Burst Mode Operation
Load Step
7803 G04
VIN = 12V
VOUT=3.3V
200mA TO 10A LOAD STEP
FIGURE 11 CIRCUIT
100µs/DIV
VOUT
200mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
Pulse–Skipping Mode
Load Step
7803 G05
VIN = 12V
VOUT=3.3V
200mA TO 10A LOAD STEP
FIGURE 11 CIRCUIT
100µs/DIV
VOUT
200mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
Forced Continuous Mode
Load Step
7803 G06
VIN = 6V
VOUT=3.3V
ILOAD=200uA
FIGURE 11 CIRCUIT
5µs/DIV
PULSE–
SKIPPING
MODE
Burst MODE
OPERATION
5A/DIV
FORCED
CONTINUOUS
MODE
Inductor Current at Light Load
7803 G07
VIN = 12V
VOUT=3.3V
FIGURE 11 CIRCUIT
2ms/DIV
0V
VOUT
1V/DIV
Soft Start–Up
7803 G08
TEMPRATURE (°C)
–55
25
5
35
65
95
125 155
0.792
0.794
0.796
0.798
0.800
0.802
0.804
0.806
0.808
vs Temperature
Regulated Feedback Voltage
7803 G09



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