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LT3504IUFD#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LT3504
4
3504fa
For more information www.linear.com/LT3504
Typical perForMance characTerisTics
Efficiency, f = 1MHz
Efficiency, f = 1MHz
Efficiency, f = 1MHz
Efficiency, f = 1MHz
Load Regulation
EN/UVLO Threshold
EN/UVLO Pin Current
T
A
= 25°C, unless otherwise noted.
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
1
3504 G01
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 1.8V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
1
3504 G02
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 2.5V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
1
3504 G03
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 3.3V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
1
3504 G04
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
100
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 5V
LOAD CURRENT (A)
0
PERCENT ERROR (%)
–3.0
–2.0
1
3504 G05
–4.0
–5.0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
0
–0.5
–1.0
–3.5
–2.5
–4.5
–1.5
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 5V
V
IN
= 12V
Efficiency 5V/3.3V/2.5V/1.8V,
f = 1MHz
Efficiency, f = 1MHz
LOAD CURRENT EACH CHANNEL (A)
0
OVERALL APPLICATION EFFICIENCY (%)
40
60
1
3504 G06
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
100
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT1,2,3,4
= 5V
LOAD CURRENT EACH CHANNEL (A)
0
OVERALL APPLICATION EFFICIENCY (%)
40
60
1
3504 G07
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
100
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
TEMPERATURE (°C)
–50
THRESHOLD (V)
1.30
1.40
125
3504 G08
1.20
0
–25 25
75
50
100
1.60
1.55
1.50
1.25
1.35
1.45
FALLING
RISING
V
EN/UVLO
(V)
0
I
EN/UVLO
(µA)
0.8
1.2
2.0
3504 G09
0
0.4
0.2 0.6
1.0
0.8 1.2
1.6
1.4
1.8
2.0
1.8
1.6
0.4
0.6
0.2
1.0
1.4
25°C
–45°C
150°C
LT3504
5
3504fa
For more information www.linear.com/LT3504
Input Voltage Undervoltage
Lockout
V
IN
Pin Current
Typical perForMance characTerisTics
RUN/SS vs FB Voltage
Soft Start Current
Switching Frequency
vs Temperature
Switch Voltage Drop
Switch Voltage Drop,
I
SW
= 500mA
Switch and Diode Current Limit
T
A
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
UVLO (V)
2.2
2.8
125
3504 G10
2.0
0
–25 25
75
50 100
3.6
3.4
3.2
2.4
2.6
3.0
V
EN/UVLO
(V)
0
I
VIN
(µA)
4
6
2.0
3504 G11
0
0.4
0.2 0.6
1.0
0.8 1.2
1.6
1.4
1.8
10
9
8
2
3
1
5
7
RUN/SS VOLTAGE (mV)
0
FB VOLTAGE (mV)
400
1200
0
400
200 600
1000
800
900
800
700
200
300
100
500
600
TEMPERATURE (°C)
–50
I
RUN/SS
(µA)
–1.8
–1.2
125
3504 G14
–2.0
0
–25 25
75
50 100
0
–0.6
–0.8
–0.2
–0.4
–1.6
–1.4
–1.0
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
0.90
150
3504 G15
0.80
50
250–25 75
125
100
1.20
1.10
1.15
1.05
0.85
0.95
1.00
SWITCH CURRENT (mA)
0
SWITCH VOLTAGE DROP (mV)
100
1000
3504 G16
0
200
400
800
600
600
500
400
200
300
TEMPERATURE (°C)
–50
SWITCH VOLTAGE DROP (mV)
240
125
3504 G17
200
0
–25 25
75
50 100
320
300
280
220
260
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
1.2
125
3504 G18
1.0
0
–25 25
75
50 100
2.0
1.9
1.4
1.1
1.3
1.5
1.7
1.8
1.6
Input Quiescent Current
vs Input Voltage
INPUT VOLTAGE (V)
0
INPUT QUIESCENT CURRENT (mA)
25
45
3504 G12
10
0
10
5 15
25
20 30
40
35
40
35
15
20
5
30
ALL SS = 2V
ALL SS = 0V
LT3504
6
3504fa
For more information www.linear.com/LT3504
Typical perForMance characTerisTics
Feedback Voltage
Power Good Threshold
Operating Waveforms,
Discontinuous Mode
Operating Waveforms,
Continuous Mode
Switch Beta
Minimum On-Time
TEMPERATURE (°C)
–50
BETA
50
125
3504 G20
40
0
–25 25
75
50 100
70
60
45
55
65
0.5A
1A
TEMPERATURE (°C)
–50
ON-TIME (ns)
70
125
3504 G21
50
0
–25 25
75
50 100
120
90
60
80
100
110
TEMPERATURE (°C)
–50
FEEDBACK VOLTAGE (mV)
797
125
3504 G22
795
0
–25 25
75
50 100
805
799
796
798
800
801
802
803
804
TEMPERATURE (°C)
–50
THRESHOLD (mV)
640
125
3504 G23
600
0
–25 25
75
50 100
740
680
620
660
700
720
FALLING
RISING
500ns/DIV
3504 G24
SW1
10V/DIV
SW2
10V/DIV
SW3
10V/DIV
SW4
10V/DIV
I
OUT1,2,3,4
= 40mA
V
OUT1,2,3,4
= 5V
500ns/DIV
3504 G25
SW1
10V/DIV
SW2
10V/DIV
SW3
10V/DIV
SW4
10V/DIV
I
OUT1,2,3,4
= 0.5A
V
OUT1,2,3,4
= 5V
Switch Current Limit
DUTY CYCLE (%)
0
SWITCH CURRENT LIMIT (A)
1.1
100
3504 G19
1.0
20
40
80
60
2.0
1.9
1.4
1.2
1.3
1.5
1.8
1.6
1.7
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LT3504IUFD#PBF

Mfr. #:
Buy LT3504IUFD#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Quad 40V/1A Step-Down Switching Regulator with 100% Duty Cycle Operation
Lifecycle:
New from this manufacturer.
Delivery:
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