LT3435EFE#PBF Linear Technology, LT3435EFE#PBF Datasheet - Page 5

• Manufacturer Part Number: LT3435EFE#PBF
• Description: IC REG SW HV 3A 500KHZ 16-TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3435EFE#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 54 V
• Current - Output: 3A
• Frequency - Switching: 500kHz
• Voltage - Input: 3.3 ~ 60 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Primary Input Voltage: 60V
• No. Of Outputs: 1
• Output Voltage: 68V
• Output Current: 2.4A
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL PERFOR A CE CHARACTERISTICS
300
500
450
400
350
250
200
150
100
600
550
500
450
400
350
300
250
200
150
100
4.5
6.0
5.5
5.0
4.0
3.5
3.0
50
0
–50
–50
0.5
Switch Peak Current Limit
Minimum On-Time for Continuous
Mode Operation
Switch On Voltage (V
LOAD CURRENT = 1A
–25
–25
1.0
–0
0
TEMPERATURE (°C)
LOAD CURRENT (A)
TEMPERATURE (°C)
1.5
25
25
50
50
T
J
2.0
CESAT
= 125°C
75
75
T
J
W
T
= –40°C
)
2.5
J
= 25°C
100
100
3435 G10
3435 G13
3435 G17
U
125
125
3.0
1000
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.0
4.5
3.5
3.0
950
900
850
800
750
700
650
600
550
500
50
45
40
35
30
25
20
15
10
5
0
–50
0
Soft-Start Current Threshold
vs FB Voltage
0
Maximum Synchronization
Frequency vs Temperature
Minimum Input Voltage
T
START-UP
J
= 25°C
–25
START-UP
RUNNING
0.2
0.5
RUNNING
0
LOAD CURRENT (A)
TEMPERATURE (°C)
0.4
1.0
FB VOLTAGE (V)
25
V
1.5
0.6
OUT
50
= 5V
V
OUT
0.8
2.0
SOFT-START
DEFEATED
75
= 3.3V
2.5
1.0
100
3435 G15
3435 G11
3435 G14
125
3.0
1.2
1000
700
300
900
800
600
500
400
200
100
100
30
20
70
60
50
40
10
10
90
80
70
60
50
40
30
20
0
0
0
5
0
Burst Mode Threshold vs Input
Voltage
Oscillator Frequency
vs FB Voltage
0
Boost Current vs Switch Current
V
L = 15µH
C
T
A
OUT
OUT
= 25°C
500
= 3.3V
= 100µF
0.25
SWITCH CURRENT (mA)
INPUT VOLTAGE (V)
1000
10
FB VOLTAGE (V)
0.50
BURST MODE EXIT
(INCREASING LOAD)
1500
BURST MODE ENTER
(DECREASING LOAD)
0.75
LT3435
2000
15
1.00
2500
3435 G18
3435 G16
3435 G12
3435fa
5
3000
1.25
20