LT3430EFE#TRPBF Linear Technology, LT3430EFE#TRPBF Datasheet - Page 2

• Manufacturer Part Number: LT3430EFE#TRPBF
• Description: IC SW REG STEP-DOWN 3A 16TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3430EFE#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.2 ~ 54 V
• Current - Output: 3A
• Frequency - Switching: 200kHz
• Voltage - Input: 5.5 ~ 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: -
• Lead Free Status / Rohs Status: Compliant

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
LT3430/LT3430-1
(Note 1)
Input Voltage (V
BOOST Pin Above SW (Note 11) .............................. 35V
BOOST Pin Voltage ................................................. 68V
SYNC Voltage ............................................................. 7V
⎯ S ⎯ H ⎯ D ⎯ N Voltage ............................................................ 6V
BIAS Pin Voltage ..................................................... 30V
FB Pin Voltage/Current .................................. 3.5V/2mA
Operating Junction Temperature Range
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................ 300°C
temperature range, otherwise specifi cations are at T
SW = Open Circuit, unless otherwise noted.
PARAMETER
Reference Voltage (V
FB Input Bias Current
Error Amp Voltage Gain
Error Amp g
V
EA Source Current
EA Sink Current
V
V
Switch Current Limit
Switch On Resistance
Maximum Switch Duty Cycle (LT3430)
2
C
C
C
to Switch g
Switching Threshold
High Clamp
LT3430EFE (Notes 8, 10) .................. –40°C to 125°C
LT3430IFE (Notes 8, 10) .................. –40°C to 125°C
m
m
REF
IN
) .................................................. 60V
)
CONDITIONS
V
5.5V ≤ V
(Note 2)
dl (V
FB = 1V
FB = 1.4V
Duty Cycle = 0
⎯ S ⎯ H ⎯ D ⎯ N = 1V
V
–40°C ≤ T
T
I
FB = 1V
SW
J
OL
C
= 125°C (Note 9)
Open, Boost = V
+ 0.2 ≤ V
= 2.5A, Boost = V
C
J
) = ±10µA
= 25°C. V
IN
J
≤ 60V
≤ 25°C
The
C
≤ V
●
IN
OH
IN
denotes the specifi cations which apply over the full operating
= 15V, V
– 0.2
IN
+ 5V, FB = 1V
+ 5V (Note 7)
PACKAGE/ORDER INFORMATION
Consult LTC Marketing for parts specifi ed 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:
ORDER PART NUMBER
C
= 1.5V, ⎯ S ⎯ H ⎯ D ⎯ N = 1V, BOOST = Open Circuit,
LT3430EFE
LT3430IFE
LT3430EFE-1
LT3430IFE-1
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
T
BOOST
JMAX
GND
GND
SW
SW
V
V
NC
IN
IN
= 125°C, θ
http://www.linear.com/leadfree/
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
●
●
●
●
●
●
FE PACKAGE
JA
TOP VIEW
1.204
1.195
= 45°C/W, θ
1650
1000
MIN
200
125
100
17
2.5
93
90
3
FE PART MARKING
JC
16
15
14
13
12
11
10
9
1.219
2200
–0.2
= 10°C/W
TYP
400
225
225
3.4
0.9
2.1
0.1
96
5
4
3430EFE-1
3430IFE-1
GND
SHDN
SYNC
NC
FB
V
BIAS
GND
3430EFE
C
3430IFE
1.234
1.243
MAX
3300
4200
–1.5
0.14
0.18
450
500
6.5
5.5
UNITS
34301fa
µMho
µMho
V/V
A/V
µA
µA
µA
%
%
Ω
Ω
V
V
V
A
A