Datasheet
Table Of Contents
- Features
- Applications
- Description
- Typical Application
- Absolute Maximum Ratings
- Pin Configuration
- Order Information
- Electrical Characteristics
- Typical Performance Characteristics
- Pin Functions
- Block Diagram
- Operation
- Applications Information
- Typical Applications
- Package Description
- Revision History
- Typical Application
- Related Parts
LTC3112
2
3112fc
For more information www.linear.com/LTC3112
pin conFiguraTion
absoluTe MaxiMuM raTings
V
IN
Voltage ................................................. –0.3V to 16V
V
OUT
Voltage .............................................. –0.3V to 15V
SW1 Voltage (Note 4) ................... – 0.3V to (V
IN
+ 0.3V)
SW2 Voltage (Note 4) ................ – 0.3V to (V
OUT
+ 0.3V)
V
BST1
Voltage ...................(V
SW1
– 0.3V) to (V
SW1
+ 6V)
V
BST2
Voltage ...................(V
SW2
– 0.3V) to (V
SW2
+ 6V)
(Notes 1, 3)
16
15
14
13
12
11
10
9
17
GND
1
2
3
4
5
6
7
8
PWM/SYNC
V
CC
BST1
SW1
SW1
BST2
SW2
SW2
COMP
FB
OVP
V
IN
V
IN
RUN
I
OUT
V
OUT
TOP VIEW
DHD16 PACKAGE
16-LEAD (5mm × 4mm) PLASTIC DFN
T
JMAX
=150 °C, q
JA
= 43°C/W, q
JC
= 4°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
FE PACKAGE
20-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
GND
COMP
FB
OVP
V
IN
V
IN
RUN
I
OUT
V
OUT
GND
GND
PWM/SYNC
V
CC
BST1
SW1
SW1
BST2
SW2
SW2
GND
21
GND
T
JMAX
= 150°C, q
JA
= 38°C/W, q
JC
= 4°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3112EDHD#PBF LTC3112EDHD#TRPBF 3112 16-Lead (5mm × 4mm) Plastic DFN –40°C to 125°C
LTC3112IDHD#PBF LTC3112IDHD#TRPBF 3112 16-Lead (5mm × 4mm) Plastic DFN –40°C to 125°C
LTC3112HDHD#PBF LTC3112HDHD#TRPBF 3112
16-Lead (5mm × 4mm) Plastic DFN
–40°C to 150°C
LTC3112MPDHD#PBF LTC3112MPDHD#TRPBF 3112
16-Lead (5mm × 4mm) Plastic DFN
–55°C to 150°C
LTC3112EFE#PBF LTC3112EFE#TRPBF 3112FE 20-Lead Plastic TSSOP –40°C to 125°C
LTC3112IFE#PBF LTC3112IFE#TRPBF 3112FE 20-Lead Plastic TSSOP –40°C to 125°C
LTC3112HFE#PBF LTC3112HFE#TRPBF 3112FE 20-Lead Plastic TSSOP –40°C to 150°C
LTC3112MPFE#PBF LTC3112MPFE#TRPBF 3112FE 20-Lead Plastic TSSOP –55°C to 150°C
Consult LT C Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LT C Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
RUN Voltage............................................... – 0.3V to 16V
PWM/SYNC, V
CC
, I
OUT
Voltage ....................– 0.3V to 6V
FB, COMP, OVP Voltage ...............................– 0.3V to 6V
Operating Junction Temperature Range (Notes 2, 6)
............................................................... –55°C to 150°C
Storage Temperature Range ..................– 65°C to 150°C
Lead Temperature (Soldering, 10sec) TSSOP ....... 300°C