LT3433IFE#TR Linear Technology, LT3433IFE#TR Datasheet - Page 2

• Manufacturer Part Number: LT3433IFE#TR
• Description: IC CONV DC/DC 200KHZ SW 16-TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost)r

Specifications of LT3433IFE#TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3 ~ 20 V
• Current - Output: 500mA
• Frequency - Switching: 200kHz
• Voltage - Input: 4 ~ 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: Contains lead / RoHS non-compliant
• Power - Output: -

ABSOLUTE
ELECTRICAL CHARACTERISTICS
LT3433
(Note 1)
Input Supply (V
Boosted Supply (V
(V
Internal Supply (V
SW_H Switch Voltage .................................. – 2V to 60V
SW_L Switch Voltage ............................... – 0.3V to 30V
Feedback Voltage (V
Burst Enable Pin (V
Shutdown Pin (V
Operating Junction Temperature Range (Note 5)
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
The
V
SYMBOL
V
V
V
V
I
V
I
R
R
V
I
I
I
I
2
VIN
VBIAS
VBST
VOUT
LIM
SS
IN
IN(UVLO)
OUT
BST
BIAS
SHDN
IN
SWH(ON)
SWL(ON)
BST(MAX)
LT3433E (Note 6) ............................ – 40 C to 125 C
LT3433I ........................................... – 40 C to 125 C
= 13.8V, V
/I
/I
SW
SW
denotes specifications that apply over the full operating temperature range, otherwise specifications are at T
= 80V)
FB
PARAMETER
Operating Voltage Range
Undervoltage Lockout
Undervoltage Lockout Hysteresis
Operating Voltage Range
Operating Voltage Range
Normal Operation
Burst Mode Operation
Shutdown
Internal Supply Output Voltage
Operating Voltage Range
Normal Operation
Burst Mode Operation
Shutdown
Short-Circuit Current Limit
Boost Supply Switch On-Resistance
Output Supply Switch On-Resistance
Shutdown Pin Thresholds
Boost Supply Switch Drive Current
Output Supply Switch Drive Current
Switch Current Limit
Foldback Current Limit
Soft-Start Output Current
= 1.25V, V
IN
SHDN
) .................................... –0.3V to 60V
W
BIAS
MAXIMUM
BST
BURST_EN
FB
) ............................. – 0.3V to 60V
) .............. –0.3V to V
) ............................. – 0.3V to 30V
) ............................... – 0.3V to 5V
OUT
W W
= 5V, V
) ................... – 0.3V to 30V
BURST_EN
RATINGS
= 0V, V
U
SW_H
BST
CONDITIONS
Enable Threshold
V
V
(Notes 2, 3)
V
V
V
V
I
I
Disable
Enable
High Side Switch On, I
Low Side Switch On, I
V
SW
SW
BST
BST
VC
SHDN
VC
SHDN
FB
+ 30V
– V
= 500mA
= 500mA
= 0V
< 0.6V
< 0.6V
< V
– V
< 0.4V
< 0.4V
IN
SW_H
SW_H
= 5V, unless otherwise noted.
+ 20V
PACKAGE/ORDER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
BURST_EN
T
SW
JMAX
SW
SW_H
SGND
SGND
V
V
BST
V
= 500mA
V
= 500mA
FB
IN
MUST BE SOLDERED TO SGND
= 125 C,
C
16-LEAD PLASTIC TSSOP
EXPOSED PAD (PIN 17)
1
2
3
4
5
6
7
8
FE PACKAGE
JA
TOP VIEW
= 40 C/W,
17
JC
16
15
14
13
12
11
10
9
= 10 C/W
SGND
SW_L
PWRGND
V
V
SHDN
SS
SGND
OUT
BIAS
MIN
3.3
3.3
0.4
0.5
4
3
INFORMATION
U
FE PART MARKING
0.35
TYP
160
580
100
660
3.4
2.6
0.1
0.1
4.5
0.8
0.6
0.7
10
30
30
5
ORDER PART
LT3433EFE
LT3433IFE
A
W
NUMBER
3433EFE
3433IFE
= 25 C.
MAX
3.95
940
190
990
2.9
1.2
0.9
60
20
75
20
25
20
50
50
1
1
9
UNITS
U
mA/A
mA/A
3433f
mV
mA
V
V
V
V
V
A
A
A
V
V
A
A
A
V
V
A
A
A