LT3434IFE#PBF Linear Technology, LT3434IFE#PBF Datasheet - Page 2

• Manufacturer Part Number: LT3434IFE#PBF
• Description: IC REG SW BUCK 3A 200KHZ 16TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3434IFE#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 54 V
• Current - Output: 3A
• 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
• Primary Input Voltage: 60V
• No. Of Outputs: 1
• Output Voltage: 54V
• Output Current: 6.5A
• 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: -

ABSOLUTE AXI U RATI GS
LT3434
(Note 1)
V
BOOST Pin Above SW ............................................ 35V
BOOST Pin Voltage ................................................. 68V
SYNC, C
Operating JunctionTemperature Range
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
temperature range, otherwise specifications are at T
C
SYMBOL
V
I
I
I
I
I
V
I
2
ELECTRICAL CHARACTERISTICS
SHDN
VINS
VIN
BIASS
BIAS
FB
SHDN
REF
SS
IN
LT3434EFE (Note 2) ........................ – 40°C to 125°C
LT3434IFE (Note 2) ......................... – 40°C to 125°C
/SYNC = 0V unless otherwise noted.
, SHDN, BIAS, PGOOD, SW ............................... 60V
SS
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
C
, PGFB, FB ................................................ 6V
to SW g
m
W
m
REF
W W
)
U
CONDITIONS
SHDN = 12V
SHDN = 0V, BOOST = 0V, FB/PGFB = 0V
BIAS = 0V, FB = 1.35V
FB = 1.35V
BIAS = 0V, FB = 1.15V
BIAS = 5V, FB = 1.15V
FB = 1.15V
SYNC = 3.3V
I
I
3.3V < V
dI(V
FB = 1.15V
FB = 1.35V
SW
SW
J
= 25°C. V
= 3A
= 3A
C
)= ±10µA
VIN
The
< 60V
●
IN
denotes the specifications which apply over the full operating
= 12V, SHDN = 12V, BIAS = 5V, FB/PGFB = 1.25V,
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
T
JMAX
BOOST
GND
MUST BE SOLDERED TO GND (PIN 8)
SW
SW
V
V
= 125°C, θ
NC
C
IN
IN
T
EXPOSED PAD IS GND (PIN 17)
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
JA
FE PACKAGE
TOP VIEW
= 45°C/W, θ
17
http://www.linear.com/leadfree/
JC(PAD)
●
●
●
●
●
●
●
16
15
14
13
12
11
10
9
PGOOD
SHDN
SYNC
PGFB
FB
V
BIAS
C
= 10°C/W
1.225
MIN
1.15
C
SS
400
20
15
U
1.25
TYP
170
110
700
900
650
1.3
2.4
0.1
3.2
2.6
2.7
1.8
45
65
75
40
30
5
6
ORDER PART
LT3434EFE
LT3434IFE
W
MARKING
NUMBER
FE PART
3434EFE
3434IFE
1.275
MAX
1.45
250
180
900
200
900
3.1
20
75
85
55
40
3
2
6
5
UNITS
µMho
3434fb
U
A/V
mA
V/V
mA
mA
µA
µA
µA
µA
µA
µA
nA
µA
µA
V
V
V
V
V