LT3437IFE#TRPBF Linear Technology, LT3437IFE#TRPBF Datasheet - Page 6

• Manufacturer Part Number: LT3437IFE#TRPBF
• Description: IC REG SW HV 500MA 16-TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3437IFE#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 54 V
• Current - Output: 500mA
• Frequency - Switching: 200kHz
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LT3437
TYPICAL PERFOR A CE CHARACTERISTICS
6
200
180
160
140
120
100
500
450
400
350
300
250
200
150
100
80
60
35
30
25
20
15
10
40
20
50
0
5
0
0
–50
0
0
Supply Current vs Input Voltage
Minimum On-Time
Soft-Start Current Threshold
vs FB Voltage
–25
10
0.2
20
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
0.4
FB VOLTAGE (V)
25
30
SOFT-START DEFEATED
0.6
50
40
75
50
0.8
V
100
60
W
OUT
1.0
= 3.3V
125
70
3437 G10
3437 G16
3437 F13
U
150
1.2
80
250
200
150
100
7.5
6.5
6.0
5.5
5.0
4.0
7.0
4.5
3.5
3.0
50
12
11
10
0
9
8
7
6
100
Oscillator Frequency
vs FB Voltage
Minimum Input Voltage
0
0
Boost Current vs Load Current
0.25
100
200
LOAD CURRENT (mA)
LOAD CURRENT (mA)
FB VOLTAGE (V)
3.3V TO START
0.50
5V TO START
3.3V TO RUN
200
5V TO RUN
300
0.75
300
400
1.00
400
3437 G14
3437 G11
3437 G17
1.25
500
500
300
600
500
400
200
100
200
180
160
140
120
100
4.0
2.5
2.0
1.0
3.5
3.0
1.5
0.5
80
60
40
20
0
0
0
100
2.0
Dropout Operation
Switch On Voltage (V
Burst Mode Threshold
vs Input Voltage
0
V
I
BOOST DIODE =
DIODES INC B1100
V
LOAD
OUT
OUT
10
= 3.3V
= 3.3V
= 250mA
2.5
200
T
J
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
= 25°C
INPUT VOLTAGE (V)
ENTER
20
3.0
300
30
3.5
T
CESAT
EXIT
J
40
= –40°C
400
T
J
)
4.0
= 125°C
50
3437 G18
3437 G12
3437 G15
3437fc
500
4.5
60