LTC3890EGN-1 LINER [Linear Technology], LTC3890EGN-1 Datasheet - Page 2

• Manufacturer Part Number: LTC3890EGN-1
• Description: 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
• Manufacturer: LINER [Linear Technology]

ABSOLUTE MAXIMUM RATINGS
LTC3890-1
Input Supply Voltage (V
Topside Driver Voltages
Switch Voltage (SW1, SW2) ........................ –5V to 65V
(BOOST1-SW1), (BOOST2-SW2) ................ –0.3V to 6V
RUN1, RUN2 ............................................... –0.3V to 8V
SENSE1
SENSE2
PLLIN/MODE, FREQ Voltages .............. –0.3V to INTV
EXTV
ITH1, ITH2, V
PGOOD1 Voltage ......................................... –0.3V to 6V
TRACK/SS1, TRACK/SS2 Voltages .............. –0.3V to 6V
Operating Junction Temperature Range
(Note 2) ................................................. –40°C to 125°C
Maximum Junction Temperature (Note 3) ............ 125°C
Storage Temperature Range ................... –65°C to 150°C
ORDER INFORMATION
LEAD FREE FINISH
LTC3890EGN-1#PBF
LTC3890IGN-1#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
SYMBOL
V
V
I
V
V
(Note 1)
2
junction temperature range, otherwise specifi cations are at T
FB1,2
IN
FB1,2
REFLNREG
LOADREG
BOOST1, BOOST2 ................................. –0.3V to 71V
Maximum Current Sourced into Pin from
Source >8V .......................................................100μA
CC
+
–
...................................................... –0.3V to 14V
, SENSE2
Voltages ...................................... –0.3V to 28V
PARAMETER
Input Supply Operating Voltage Range
Regulated Feedback Voltage
Feedback Current
Reference Voltage Line Regulation
Output Voltage Load Regulation
FB1
, V
+
FB2
, SENSE1
TAPE AND REEL
LTC3890EGN-1#TRPBF
LTC3890IGN-1#TRPBF
Voltages ................... –0.3V to 6V
IN
) ......................... –0.3V to 65V
–
http://www.linear.com/leadfree/
PART MARKING*
LTC3890GN-1
LTC3890GN-1
CONDITIONS
I
–40°C to 125°C
–40°C to 85°C
(Note 4)
V
(Note4)
Measured in Servo Loop,
Δ
(Note4)
Measured in Servo Loop,
Δ
TH1,2
IN
ITH
ITH
http://www.linear.com/tapeandreel/
= 4.5V to 60V (Note 4)
Voltage = 1.2V to 0.7V
Voltage = 1.2V to 2V
Voltage = 1.2V (Note 4)
The
J
CC
= 25°C. V
l
denotes the specifi cations which apply over the full operating
PIN CONFIGURATION
IN
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead Plastic SSOP
= 12V, V
RUN1,2
PLLIN/MODE
TRACK/SS2
SENSE1
SENSE1
SENSE2
SENSE2
SGND
RUN1
RUN2
FREQ
ITH1
V
V
ITH2
= 5V, EXTV
FB1
FB2
+
–
–
+
T
JMAX
28-LEAD PLASTIC SSOP
10
11
12
13
14
1
2
3
4
5
6
7
8
9
l
l
l
= 125°C, θ
GN PACKAGE
TOP VIEW
CC
0.788
0.792
MIN
= 0V unless otherwise noted.
4
JA
= 90°C/W
28
27
26
25
24
23
22
21
20
19
18
17
16
15
0.800
0.800
0.002
–0.01
0.01
TYP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
±5
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
V
PGND
EXTV
INTV
BG2
BOOST2
SW2
TG2
IN
CC
CC
0.812
0.808
MAX
0.02
–0.1
±50
0.1
60
UNITS
38901f
%/V
nA
%
%
V
V
V