LT3437IFE#TRPBF Linear Technology, LT3437IFE#TRPBF Datasheet - Page 3

• 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: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted.
SYMBOL
V
I
I
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted.
SYMBOL
I
I
I
V
I
I
SW V
I
SHDN
VINS
VIN
BIASS
BIAS
FB
PK
CSS
SHDN
REF
CESAT
PARAMETER
PARAMETER
SHDN Threshold
SHDN Input Current
Minimum Input Voltage (Note 3)
Supply Shutdown Current
Supply Sleep Current (Note 4)
Supply Quiescent Current
Minimum BIAS Voltage (Note 5)
BIAS Sleep Current (Note 4)
BIAS Quiescent Current
Minimum Boost Voltage (Note 6)
Input Boost Current (Note 7)
Reference Voltage (V
FB Input Bias Current
EA Voltage Gain (Note 8)
EA Voltage g
EA Source Current
EA Sink Current
V
V
V
SW Current Limit
Switch Saturation Voltage
(Note 9)
Switching Frequency
Maximum Duty Cycle
Minimum SYNC Amplitude
SYNC Frequency Range
SYNC Input Impedance
C
C
C
C
SS
to SW g
Switching Threshold
High Clamp
Current Threshold (Note 10)
m
m
REF
)
CONDITIONS
CONDITIONS
SHDN = 12V
SHDN = 0V, BOOST = 0V, FB/PGFB = 0V, BIAS = 0V
BIAS = 0V, FB = 1.35V
FB = 1.35V
BIAS = 0V, FB = 1.15V, V
BIAS = 5V, FB = 1.15V, V
SYNC = 2V
I
I
I
3.3V < V
dI(V
FB = 1.15V
FB = 1.35V
V
I
I
FB = 0V
SW
SW
SW
SW
SW
J
J
SYNC
= 25°C. V
= 25°C. V
= 500mA
= 0.5A
= 0.25A
C
= 250mA
= 500mA
)= ±10µA
= 2V
The
VIN
The
●
< 80V
●
IN
IN
denotes the specifications which apply over the –40°C to 140°C
denotes the specifications which apply over the –40°C to 125°C
= 12V, SHDN = 12V, BIAS = 5V, FB = 1.25V, C
= 12V, SHDN = 12V, BIAS = 5V, FB = 1.25V, C
C
C
= 0.8V, SYNC = 2V
= 0.8V, SYNC = 2V
●
●
●
●
●
●
●
●
●
●
●
1.225
MIN
MIN
500
165
240
1.1
1.5
15
15
4
0.475
1.35
0.75
1.25
1.75
SS
TYP
150
TYP
SS
110
900
650
500
650
200
400
200
1.3
2.5
0.1
2.7
1.8
1.5
45
11
50
35
30
95
50
10
5
8
1
/SYNC = 0V unless
/SYNC = 0V unless
1.275
MAX
MAX
LT3437
3.15
300
180
200
900
400
800
240
700
1.5
3.5
2.5
2.1
30
75
16
13
55
55
16
2
2
1
1
2
UNITS
UNITS
µMho
3437fc
3
A/V
kHz
kHz
V/V
mA
mA
mA
mA
mA
mV
mA
mV
mV
kΩ
µA
µA
µA
µA
µA
nA
µA
µA
µA
%
V
V
V
V
V
V
V