LTC3605 LINER [Linear Technology], LTC3605 Datasheet - Page 2

• Manufacturer Part Number: LTC3605
• Description: 20V, 5A Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
LTC3605A
(Note 1)
PV
SW Transient Voltage ................................. –2V to 24.5V
BOOST Voltage .......................... –0.3V to PV
RUN Voltage ............................................. –0.3V to SV
V
INTV
ITH, RT, CLKOUT, PGOOD Voltage ......... –0.3V to INTV
CLKIN, PHMODE, MODE Voltage .......... –0.3V to INTV
TRACK/SS, FB Voltage .......................... –0.3V to INTV
Operating Junction Temperature Range
(Note 2) .................................................. –40°C to 125°C
Storage Temperature Range ................... –65°C to 125°C
ORDER INFORMATION
LEAD FREE FINISH
LTC3605AEUF#PBF
LTC3605AIUF#PBF
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC 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/
temperature range, otherwise specifications are at T
SYMBOL
SV
PV
I
V
DV
DV
I
g
t
t
2
Q
FB
ON(MIN)
OFF(MIN)
m
FB
ON
IN
IN
FB(LINE)
FB(LOAD)
IN
(EA)
, SV
Voltage ............................................... –0.3V to SV
CC
Voltage .......................................... –0.3V to 3.6V
IN
, SW Voltage .............................. –0.3V to 22V
PARAMETER
SV
V
Input DC Supply Current
Feedback Reference Voltage
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
Feedback Pin Input Current
Error Amplifier Transconductance
Minimum On-Time
Minimum Off-Time
IN
Active
Shutdown
IN
Power Supply Range
Supply Range
TAPE AND REEL
LTC3605AEUF#TRPBF
LTC3605AIUF#TRPBF
CONDITIONS
(Note 3)
ITH =1.2V (Note 4)
V
ITH = 1.2V
PART MARKING*
3605A
3605A
IN
Mode = 0, R
V
IN
IN
= 4V to 20V, ITH = 1.2V
J
≈ T
=12V, RUN = 0
+ INTV
A
= 25°C. (Note 2)
The
T
CC
CC
CC
CC
= 162k
IN
IN
l
denotes the specifications which apply over the full operating
PIN CONFIGURATION
PACKAGE DESCRIPTION
24-Lead (4mm × 4mm) Plastic QFN
24-Lead (4mm × 4mm) Plastic QFN
EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
TRACK/SS
PHMODE
MODE
ITH
RT
FB
24-LEAD (4mm × 4mm) PLASTIC QFN
1
2
3
4
5
6
l
l
l
T
JMAX
24 23 22 21 20 19
7
= 125°C, θ
8
0.594
UF PACKAGE
MIN
1.15
1.2
TOP VIEW
4
PGND
9
25
10 11 12
JA
= 37°C/W
0.600
0.001
1.35
TYP
1.5
0.1
11
40
70
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
18
17
16
15
14
13
PV
PV
SW
SW
SW
SW
IN
IN
0.606
MAX
0.03
±30
0.3
1.6
20
20
40
5
UNITS
3605af
%/V
mA
mS
µA
nA
ns
ns
%
V
V
V