LT3505EMS8E#PBF Linear Technology, LT3505EMS8E#PBF Datasheet - Page 2

• Manufacturer Part Number: LT3505EMS8E#PBF
• Description: IC REG SW STP DWN 1.2A 8-MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3505EMS8E#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.78 ~ 33.8 V
• Current - Output: 1.2A
• Frequency - Switching: 200kHz ~ 3MHz
• Voltage - Input: 3.6 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP Exposed Pad, 8-HMSOP, 8-eMSOP
• Dc To Dc Converter Type: Step Down
• Pin Count: 8
• Input Voltage: 36V
• Output Voltage: 0.78 to 33.84V
• Switching Freq: 200 TO 3000KHz
• Output Current: 1.2A
• Package Type: MSOP EP
• Output Type: Adjustable
• Switching Regulator: Yes
• Line Regulation: 0.007%/V(Typ)
• Mounting: Surface Mount
• Input Voltage (min): 3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant

ABSOLUTE MAXIMUM RATINGS
LT3505
(Note 1)
Input Voltage (V
BOOST Pin Voltage ..................................................50V
BOOST Pin Above SW Pin .........................................25V
SHDN Pin ..................................................................40V
FB Pin .........................................................................6V
V
R
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
LT3505EDD#PBF
LT3505IDD#PBF
LT3505EMS8E#PBF
LT3505IMS8E#PBF
LEAD BASED FINISH
LT3505EDD
LT3505IDD
LT3505EMS8E
LT3505IMS8E
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
C
T
Pin .........................................................................3V
Pin .........................................................................3V
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
IN
T
BOOST
JMAX
SHDN
) ....................................................40V
8-LEAD (3mm × 3mm) PLASTIC DFN
SW
V
IN
= 125°C, θ
TAPE AND REEL
LT3505EDD#TRPBF
LT3505IDD#TRPBF
LT3505EMS8E#TRPBF
LT3505IMS8E#TRPBF
TAPE AND REEL
LT3505EDD#TR
LT3505IDD#TR
LT3505EMS8E#TR
LT3505IMS8E#TR
1
2
3
4
DD PACKAGE
TOP VIEW
JA
= 43°C/W, θ
9
JC
8
7
6
5
= 5°C/W
V
FB
R
GND
C
T
http://www.linear.com/leadfree/
PART MARKING
LCHB
LCHC
LTCNX
LTCNY
PART MARKING
LCHB
LCHC
LTCNX
LTCNY
http://www.linear.com/tapeandreel/
Operating Temperature Range (Note 2)
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ................... –65°C to 150°C
LT3505E .............................................. –40°C to 85°C
LT3505I ............................................. –40°C to 125°C
PACKAGE DESCRIPTION
8-Lead (3mm x 3mm) Plastic DFN
8-Lead (3mm x 3mm) Plastic DFN
8-Lead Plastic MSOP
8-Lead Plastic MSOP
PACKAGE DESCRIPTION
8-Lead (3mm x 3mm) Plastic DFN
8-Lead (3mm x 3mm) Plastic DFN
8-Lead Plastic MSOP
8-Lead Plastic MSOP
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
T
JMAX
BOOST
SHDN
SW
= 125°C, θ
V
IN
8-LEAD PLASTIC MSOP
1
2
3
4
MS8E PACKAGE
JA
TOP VIEW
= 40°C/W, θ
9
JC
8
7
6
5
V
FB
R
GND
= 5°C/W
C
T
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
3505fc