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ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
LTC3875EUH#PBF
LTC3875EUH#TRPBF
LTC3875IUH#PBF
LTC3875IUH#TRPBF
LTC3875EUJ#PBF
LTC3875EUJ#TRPBF
LTC3875IUJ#PBF
LTC3875IUJ#TRPBF
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to:
For more information on tape and reel specifications, go to:
designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS
junction temperature range, otherwise specifications are at T
SYMBOL
PARAMETER
Main Control Loops
V
Input Voltage Range
IN
V
Output Voltage Range
OUT
+
V
Regulated V
OSNS1,2
OUT
Including Diffamp Error
+
I
Feedback Current
OSNS1,2
V
Reference Voltage Line Regulation
REFLNREG
V
Output Voltage Load Regulation
LOADREG
g
Transconductance Amplifier g
m1,2
Thermal Functions
I
Thermal Sensor Current
TCOMP1,2
T
Internal Thermal Shutdown
SHDN
T
Internal TS Hysteresis
HYS
Fast Transient Functions
I
Fast Transient Program Current
FAST
Current Sensing Functions
I
AC Sense Pins Bias Current
SENSE(AC)
I
DC Sense Pins Bias Current
SENSE(DC)
A
Total Sense Gain to Current Comp
VT(SNS)
PART MARKING
3875
3875
LTC3875
LTC3875
http://www.linear.com/leadfree/
http://www.linear.com/tapeandreel/.
The
CONDITIONS
+
SNSD
Pin to V
+
SNSD
Pin to GND
Feedback Voltage
(Note 4); I
TH1,2
(Note 4); I
TH1,2
(Note 4)
V
= 4.5V to 38V (Note 4)
IN
(Note 4)
Measured in Servo Loop; ∆I
Measured in Servo Loop; ∆I
I
= 1.2V; Sink/Source 5µA (Note 4)
m
TH1,2
(Note 8)
(Note 8)
Each Channel; V
Each Channel; V
For more information
PACKAGE DESCRIPTION
40-Lead (5mm × 5mm) Plastic QFN
40-Lead (5mm × 5mm) Plastic QFN
40-Lead (6mm × 6mm) Plastic QFN
40-Lead (6mm × 6mm) Plastic QFN
Some packages are available in 500 unit reels through
denotes the specifications which apply over the specified operating
l
= 25°C (Note 2). V
= 15V, V
A
IN
OUT
Voltage = 1.2V, –40°C to 85°C
Voltage = 1.2V,–40°C to 125°C
Voltage = 1.2V to 0.7V
TH
Voltage = 1.2V to 1.6V
TH
+
= 3.3V
SNSA
(S)
+
= 3.3V
SNSD
(S)
www.linear.com/LTC3875
LTC3875
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
= 5V unless otherwise noted.
RUN1,2
MIN
TYP
4.5
0.6
0.6
0.597
0.600
0.603
0.5965
0.600
0.6045
l
–30
0.002
0.005
0.01
l
–0.01
l
2.2
29
30
160
10
9
10
l
±0.5
±30
l
5
MAX
UNITS
38
V
3.5
V
5
V
V
V
–100
nA
%/V
0.1
%
–0.1
%
mmho
31
µA
°C
°C
11
µA
±2
µA
±50
nA
V/V
3875fb
3
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