![](http://datasheet.mmic.net.cn/Linear-Technology/LT6556IUF-TRPBF_datasheet_97945/LT6556IUF-TRPBF_2.png)
LT6556
2
6556f
Total Supply Voltage (V+ to V–) .............................12.6V
Input Current (Note 2) .........................................±10mA
Output Current (Continuous) ..............................±70mA
EN to DGND Voltage (Note 2) ..................................5.5V
SEL to DGND Voltage (Note 2)....................................8V
Output Short-Circuit Duration (Note 3) ............ Indenite
Operating Temperature Range (Note 4) ... –40°C to 85°C
Specied Temperature Range (Note 5) .... –40°C to 85°C
(Note 1)
The denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VS = ±5V, RL = 1k, CL = 1.5pF, VEN = 0.4V, VAGND, VDGND, VVREF = 0V.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOS
Offset Voltage
VIN = 0V, VOS = VOUT
●
18
±67
±75
mV
IIN
Input Current
●
–12
±45
A
RIN
Input Resistance
VIN = ±1V
●
100
500
kΩ
CIN
Input Capacitance
f = 100kHz
●
1pF
PSRR
Power Supply Rejection Ratio
VS = ±2.25V to ±6V (Note 6)
●
51
62
dB
ELECTRICAL CHARACTERISTICS
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
Junction Temperature
SSOP ................................................................ 150°C
QFN................................................................... 125°C
Storage Temperature Range
SSOP ................................................. –65°C to 150°C
QFN.................................................... –65°C to 125°C
Soldering Temperature (10 sec)............................ 300°C
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
GN PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
IN1A
DGND
IN2A
VREF
IN3A
AGND1
IN1B
AGND2
IN2B
AGND3
IN3B
V–
V+
EN
SEL A/B
V+
OUT1
V–
OUT2
V+
OUT3
V–
V+
G = +1
TJMAX = 150°C, θJA = 90°C/W
24 23 22 21 20 19
7
8
9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm × 4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
VREF
IN3A
AGND1
V–
IN1B
AGND2
V+
OUT1
V–
OUT2
V+
OUT3
IN2A
DGND
IN1A
V
+
EN
SEL
A/B
IN2B
AGND3
IN3B
V
+
V
+
V
–
TJMAX = 125°C, θJA = 37°C/W, θJC = 2.6°C/W
EXPOSED PAD (PIN 25) IS V–
MUST BE SOLDERED TO PCB
ORDER PART NUMBER
GN PART MARKING
ORDER PART NUMBER
UF PART MARKING*
LT6556CGN
LT6556IGN
LT6556CGN
LT6556IGN
LT6556CUF
LT6556IUF
6556
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.