LT3435EFE#PBF Linear Technology, LT3435EFE#PBF Datasheet - Page 2

• Manufacturer Part Number: LT3435EFE#PBF
• Description: IC REG SW HV 3A 500KHZ 16-TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3435EFE#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 54 V
• Current - Output: 3A
• Frequency - Switching: 500kHz
• 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: 68V
• Output Current: 2.4A
• 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
(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
LT3435
temperature range, otherwise specifications are at T
unless otherwise noted.
SYMBOL
V
I
I
I
I
I
V
I
2
ELECTRICAL CHARACTERISTICS
SHDN
VINS
VIN
BIASS
BIAS
FB
SHDN
REF
IN
(Note 2) ........................................... – 40°C to 125°C
, 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
, PGFB, FB ................................................ 6V
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
SYNC = 3.3V
I
I
3.3V < V
dI(V
SW
SW
J
= 25°C. V
= 1.5A
= 3A
C
)= ±10µA
The
VIN
< 60V
●
IN
denotes the specifications which apply over the full operating
= 12V, SHDN = 12V, BIAS = 5V, FB/PGFB = 1.25V, C
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:
ORDER PART NUMBER
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO GND (PIN 8)
LT3435EFE
LT3435IFE
T
JMAX
BOOST
GND
SW
SW
V
V
= 125°C, θ
NC
C
IN
IN
T
http://www.linear.com/leadfree/
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
●
●
●
●
●
●
●
JA
FE PACKAGE
TOP VIEW
= 45°C/W, θ
17
1.225
1.15
MIN
400
U
FE PART MARKING
JC(PAD)
16
15
14
13
12
11
10
9
1.25
TYP
170
125
700
900
650
1.3
2.4
0.1
3.3
2.6
2.7
1.8
45
65
75
PGOOD
SHDN
SYNC
PGFB
FB
V
BIAS
C
= 10°C/W
5
C
SS
3435EFE
3435IFE
W
SS
/SYNC = 0V
1.275
MAX
1.45
250
180
900
200
900
3.1
20
75
85
3
2
7
6
UNITS
µMho
3435fa
U
V/V
mA
mA
mA
µA
µA
µA
µA
µA
µA
nA
V
V
V
V
V